octave-nkf: liboctave/CSparse.cc annotate

annotate liboctave/CSparse.cc @ 10447:12d25a1d84bf

Use gnulib headers instead of C++ std headers where needed.

author	David Grundberg <davidg@cs.umu.se>
date	Wed, 24 Mar 2010 17:27:58 +0100
parents	5dd7a7bf4950
children	189274f6c7c4

rev	line source
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1 /*
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	2
8920 eb63fbe60fab update copyright notices John W. Eaton <jwe@octave.org> parents: 8910 diff changeset	3 Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009 David Bateman
7016 93c65f2a5668 [project @ 2007-10-12 06:40:56 by jwe] jwe parents: 6924 diff changeset	4 Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004 Andy Adler
93c65f2a5668 [project @ 2007-10-12 06:40:56 by jwe] jwe parents: 6924 diff changeset	5
93c65f2a5668 [project @ 2007-10-12 06:40:56 by jwe] jwe parents: 6924 diff changeset	6 This file is part of Octave.
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	8 Octave is free software; you can redistribute it and/or modify it
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	9 under the terms of the GNU General Public License as published by the
7016 93c65f2a5668 [project @ 2007-10-12 06:40:56 by jwe] jwe parents: 6924 diff changeset	10 Free Software Foundation; either version 3 of the License, or (at your
93c65f2a5668 [project @ 2007-10-12 06:40:56 by jwe] jwe parents: 6924 diff changeset	11 option) any later version.
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	12
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	13 Octave is distributed in the hope that it will be useful, but WITHOUT
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	14 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	15 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	16 for more details.
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	17
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	18 You should have received a copy of the GNU General Public License
7016 93c65f2a5668 [project @ 2007-10-12 06:40:56 by jwe] jwe parents: 6924 diff changeset	19 along with Octave; see the file COPYING. If not, see
93c65f2a5668 [project @ 2007-10-12 06:40:56 by jwe] jwe parents: 6924 diff changeset	20 <http://www.gnu.org/licenses/>.
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	21
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	22 */
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	23
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	24 #ifdef HAVE_CONFIG_H
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	25 #include <config.h>
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	26 #endif
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	27
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	28 #include <cfloat>
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	29
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	30 #include <iostream>
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	31 #include <vector>
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	32
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	33 #include "quit.h"
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	34 #include "lo-ieee.h"
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	35 #include "lo-mappers.h"
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	36 #include "f77-fcn.h"
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	37 #include "dRowVector.h"
8377 25bc2d31e1bf improve OCTAVE_LOCAL_BUFFER Jaroslav Hajek <highegg@gmail.com> parents: 8366 diff changeset	38 #include "oct-locbuf.h"
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	39
8964 f4f4d65faaa0 Implement sparse * diagonal and diagonal * sparse operations, double-prec only. Jason Riedy <jason@acm.org> parents: 8920 diff changeset	40 #include "dDiagMatrix.h"
f4f4d65faaa0 Implement sparse * diagonal and diagonal * sparse operations, double-prec only. Jason Riedy <jason@acm.org> parents: 8920 diff changeset	41 #include "CDiagMatrix.h"
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	42 #include "CSparse.h"
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	43 #include "boolSparse.h"
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	44 #include "dSparse.h"
7602 7bfaa9611558 Rewrite sparse mappers in terms of a functor template function David Bateman <dbateman@free.fr> parents: 7520 diff changeset	45 #include "functor.h"
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	46 #include "oct-spparms.h"
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	47 #include "SparseCmplxLU.h"
5451 ed08548b9054 [project @ 2005-09-15 19:52:50 by jwe] jwe parents: 5429 diff changeset	48 #include "oct-sparse.h"
5506 b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: 5451 diff changeset	49 #include "sparse-util.h"
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: 5451 diff changeset	50 #include "SparseCmplxCHOL.h"
5610 9761b7d24e9e [project @ 2006-02-09 09:12:02 by dbateman] dbateman parents: 5604 diff changeset	51 #include "SparseCmplxQR.h"
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	52
8964 f4f4d65faaa0 Implement sparse * diagonal and diagonal * sparse operations, double-prec only. Jason Riedy <jason@acm.org> parents: 8920 diff changeset	53 #include "Sparse-diag-op-defs.h"
f4f4d65faaa0 Implement sparse * diagonal and diagonal * sparse operations, double-prec only. Jason Riedy <jason@acm.org> parents: 8920 diff changeset	54
8968 91d53dc37f79 Add perm * sparse, perm \ sparse, sparse * perm, and sparse / perm operations. Jason Riedy <jason@acm.org> parents: 8967 diff changeset	55 #include "Sparse-perm-op-defs.h"
9825 7483fe200fab narrow complex values with negative zero imaginary parts Jaroslav Hajek <highegg@gmail.com> parents: 9812 diff changeset	56 #include "mx-inlines.cc"
8968 91d53dc37f79 Add perm * sparse, perm \ sparse, sparse * perm, and sparse / perm operations. Jason Riedy <jason@acm.org> parents: 8967 diff changeset	57
5681 233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	58 // Define whether to use a basic QR solver or one that uses a Dulmange
233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	59 // Mendelsohn factorization to seperate the problem into under-determined,
233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	60 // well-determined and over-determined parts and solves them seperately
233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	61 #ifndef USE_QRSOLVE
233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	62 #include "sparse-dmsolve.cc"
233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	63 #endif
233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	64
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	65 // Fortran functions we call.
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	66 extern "C"
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	67 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	68 F77_RET_T
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	69 F77_FUNC (zgbtrf, ZGBTRF) (const octave_idx_type&, const octave_idx_type&, const octave_idx_type&,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	70 const octave_idx_type&, Complex, const octave_idx_type&, octave_idx_type, octave_idx_type&);
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	71
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	72 F77_RET_T
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	73 F77_FUNC (zgbtrs, ZGBTRS) (F77_CONST_CHAR_ARG_DECL, const octave_idx_type&,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	74 const octave_idx_type&, const octave_idx_type&, const octave_idx_type&,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	75 const Complex*, const octave_idx_type&,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	76 const octave_idx_type, Complex, const octave_idx_type&, octave_idx_type&
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	77 F77_CHAR_ARG_LEN_DECL);
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	78
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	79 F77_RET_T
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	80 F77_FUNC (zgbcon, ZGBCON) (F77_CONST_CHAR_ARG_DECL, const octave_idx_type&,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	81 const octave_idx_type&, const octave_idx_type&, Complex*,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	82 const octave_idx_type&, const octave_idx_type*, const double&,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	83 double&, Complex, double, octave_idx_type&
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	84 F77_CHAR_ARG_LEN_DECL);
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	85
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	86 F77_RET_T
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	87 F77_FUNC (zpbtrf, ZPBTRF) (F77_CONST_CHAR_ARG_DECL, const octave_idx_type&,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	88 const octave_idx_type&, Complex*, const octave_idx_type&, octave_idx_type&
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	89 F77_CHAR_ARG_LEN_DECL);
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	90
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	91 F77_RET_T
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	92 F77_FUNC (zpbtrs, ZPBTRS) (F77_CONST_CHAR_ARG_DECL, const octave_idx_type&,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	93 const octave_idx_type&, const octave_idx_type&, Complex*, const octave_idx_type&,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	94 Complex*, const octave_idx_type&, octave_idx_type&
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	95 F77_CHAR_ARG_LEN_DECL);
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	96
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	97 F77_RET_T
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	98 F77_FUNC (zpbcon, ZPBCON) (F77_CONST_CHAR_ARG_DECL, const octave_idx_type&,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	99 const octave_idx_type&, Complex*, const octave_idx_type&,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	100 const double&, double&, Complex, double, octave_idx_type&
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	101 F77_CHAR_ARG_LEN_DECL);
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	102
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	103 F77_RET_T
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	104 F77_FUNC (zgttrf, ZGTTRF) (const octave_idx_type&, Complex, Complex, Complex*,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	105 Complex, octave_idx_type, octave_idx_type&);
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	106
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	107 F77_RET_T
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	108 F77_FUNC (zgttrs, ZGTTRS) (F77_CONST_CHAR_ARG_DECL, const octave_idx_type&,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	109 const octave_idx_type&, const Complex, const Complex,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	110 const Complex, const Complex, const octave_idx_type*,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	111 Complex *, const octave_idx_type&, octave_idx_type&
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	112 F77_CHAR_ARG_LEN_DECL);
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	113
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	114 F77_RET_T
5322 22994a5730f9 [project @ 2005-04-29 13:04:24 by dbateman] dbateman parents: 5307 diff changeset	115 F77_FUNC (zptsv, ZPTSV) (const octave_idx_type&, const octave_idx_type&, double, Complex,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	116 Complex*, const octave_idx_type&, octave_idx_type&);
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	117
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	118 F77_RET_T
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	119 F77_FUNC (zgtsv, ZGTSV) (const octave_idx_type&, const octave_idx_type&, Complex, Complex,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	120 Complex, Complex, const octave_idx_type&, octave_idx_type&);
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	121 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	122
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	123 SparseComplexMatrix::SparseComplexMatrix (const SparseMatrix& a)
5681 233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	124 : MSparse<Complex> (a.rows (), a.cols (), a.nnz ())
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	125 {
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	126 octave_idx_type nc = cols ();
5681 233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	127 octave_idx_type nz = a.nnz ();
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	128
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	129 for (octave_idx_type i = 0; i < nc + 1; i++)
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	130 cidx (i) = a.cidx (i);
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	131
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	132 for (octave_idx_type i = 0; i < nz; i++)
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	133 {
5681 233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	134 data (i) = Complex (a.data (i));
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	135 ridx (i) = a.ridx (i);
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	136 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	137 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	138
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	139 SparseComplexMatrix::SparseComplexMatrix (const SparseBoolMatrix& a)
5681 233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	140 : MSparse<Complex> (a.rows (), a.cols (), a.nnz ())
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	141 {
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	142 octave_idx_type nc = cols ();
5681 233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	143 octave_idx_type nz = a.nnz ();
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	144
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	145 for (octave_idx_type i = 0; i < nc + 1; i++)
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	146 cidx (i) = a.cidx (i);
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	147
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	148 for (octave_idx_type i = 0; i < nz; i++)
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	149 {
5681 233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	150 data (i) = Complex (a.data (i));
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	151 ridx (i) = a.ridx (i);
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	152 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	153 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	154
8366 8b1a2555c4e2 implement diagonal matrix objects Jaroslav Hajek <highegg@gmail.com> parents: 8335 diff changeset	155 SparseComplexMatrix::SparseComplexMatrix (const ComplexDiagMatrix& a)
8910 6e9f26506804 optimize diag -> sparse and perm -> sparse conversions Jaroslav Hajek <highegg@gmail.com> parents: 8377 diff changeset	156 : MSparse<Complex> (a.rows (), a.cols (), a.length ())
6e9f26506804 optimize diag -> sparse and perm -> sparse conversions Jaroslav Hajek <highegg@gmail.com> parents: 8377 diff changeset	157 {
6e9f26506804 optimize diag -> sparse and perm -> sparse conversions Jaroslav Hajek <highegg@gmail.com> parents: 8377 diff changeset	158 octave_idx_type j = 0, l = a.length ();
6e9f26506804 optimize diag -> sparse and perm -> sparse conversions Jaroslav Hajek <highegg@gmail.com> parents: 8377 diff changeset	159 for (octave_idx_type i = 0; i < l; i++)
8366 8b1a2555c4e2 implement diagonal matrix objects Jaroslav Hajek <highegg@gmail.com> parents: 8335 diff changeset	160 {
8910 6e9f26506804 optimize diag -> sparse and perm -> sparse conversions Jaroslav Hajek <highegg@gmail.com> parents: 8377 diff changeset	161 cidx (i) = j;
6e9f26506804 optimize diag -> sparse and perm -> sparse conversions Jaroslav Hajek <highegg@gmail.com> parents: 8377 diff changeset	162 if (a(i, i) != 0.0)
8366 8b1a2555c4e2 implement diagonal matrix objects Jaroslav Hajek <highegg@gmail.com> parents: 8335 diff changeset	163 {
8b1a2555c4e2 implement diagonal matrix objects Jaroslav Hajek <highegg@gmail.com> parents: 8335 diff changeset	164 data (j) = a(i, i);
8b1a2555c4e2 implement diagonal matrix objects Jaroslav Hajek <highegg@gmail.com> parents: 8335 diff changeset	165 ridx (j) = i;
8b1a2555c4e2 implement diagonal matrix objects Jaroslav Hajek <highegg@gmail.com> parents: 8335 diff changeset	166 j++;
8b1a2555c4e2 implement diagonal matrix objects Jaroslav Hajek <highegg@gmail.com> parents: 8335 diff changeset	167 }
8b1a2555c4e2 implement diagonal matrix objects Jaroslav Hajek <highegg@gmail.com> parents: 8335 diff changeset	168 }
8910 6e9f26506804 optimize diag -> sparse and perm -> sparse conversions Jaroslav Hajek <highegg@gmail.com> parents: 8377 diff changeset	169 for (octave_idx_type i = l; i <= a.cols (); i++)
6e9f26506804 optimize diag -> sparse and perm -> sparse conversions Jaroslav Hajek <highegg@gmail.com> parents: 8377 diff changeset	170 cidx(i) = j;
8366 8b1a2555c4e2 implement diagonal matrix objects Jaroslav Hajek <highegg@gmail.com> parents: 8335 diff changeset	171 }
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	172 bool
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	173 SparseComplexMatrix::operator == (const SparseComplexMatrix& a) const
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	174 {
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	175 octave_idx_type nr = rows ();
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	176 octave_idx_type nc = cols ();
5681 233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	177 octave_idx_type nz = nnz ();
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	178 octave_idx_type nr_a = a.rows ();
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	179 octave_idx_type nc_a = a.cols ();
5681 233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	180 octave_idx_type nz_a = a.nnz ();
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	181
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	182 if (nr != nr_a \|\| nc != nc_a \|\| nz != nz_a)
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	183 return false;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	184
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	185 for (octave_idx_type i = 0; i < nc + 1; i++)
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	186 if (cidx(i) != a.cidx(i))
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	187 return false;
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	188
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	189 for (octave_idx_type i = 0; i < nz; i++)
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	190 if (data(i) != a.data(i) \|\| ridx(i) != a.ridx(i))
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	191 return false;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	192
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	193 return true;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	194 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	195
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	196 bool
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	197 SparseComplexMatrix::operator != (const SparseComplexMatrix& a) const
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	198 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	199 return !(*this == a);
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	200 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	201
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	202 bool
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	203 SparseComplexMatrix::is_hermitian (void) const
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	204 {
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	205 octave_idx_type nr = rows ();
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	206 octave_idx_type nc = cols ();
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	207
6207 3c92b8d892dd [project @ 2006-12-06 20:19:14 by dbateman] dbateman parents: 6185 diff changeset	208 if (nr == nc && nr > 0)
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	209 {
6207 3c92b8d892dd [project @ 2006-12-06 20:19:14 by dbateman] dbateman parents: 6185 diff changeset	210 for (octave_idx_type j = 0; j < nc; j++)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	211 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	212 for (octave_idx_type i = cidx(j); i < cidx(j+1); i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	213 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	214 octave_idx_type ri = ridx(i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	215
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	216 if (ri != j)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	217 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	218 bool found = false;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	219
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	220 for (octave_idx_type k = cidx(ri); k < cidx(ri+1); k++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	221 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	222 if (ridx(k) == j)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	223 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	224 if (data(i) == conj(data(k)))
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	225 found = true;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	226 break;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	227 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	228 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	229
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	230 if (! found)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	231 return false;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	232 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	233 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	234 }
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	235
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	236 return true;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	237 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	238
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	239 return false;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	240 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	241
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	242 static const Complex Complex_NaN_result (octave_NaN, octave_NaN);
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	243
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	244 SparseComplexMatrix
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	245 SparseComplexMatrix::max (int dim) const
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	246 {
9790 a5035bc7fbfb rewrite dispatch part & slightly improve min,max,cummin,cummax Jaroslav Hajek <highegg@gmail.com> parents: 9469 diff changeset	247 Array<octave_idx_type> dummy_idx;
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	248 return max (dummy_idx, dim);
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	249 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	250
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	251 SparseComplexMatrix
9790 a5035bc7fbfb rewrite dispatch part & slightly improve min,max,cummin,cummax Jaroslav Hajek <highegg@gmail.com> parents: 9469 diff changeset	252 SparseComplexMatrix::max (Array<octave_idx_type>& idx_arg, int dim) const
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	253 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	254 SparseComplexMatrix result;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	255 dim_vector dv = dims ();
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	256
9790 a5035bc7fbfb rewrite dispatch part & slightly improve min,max,cummin,cummax Jaroslav Hajek <highegg@gmail.com> parents: 9469 diff changeset	257 if (dv.numel () == 0 \|\| dim >= dv.length ())
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	258 return result;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	259
9790 a5035bc7fbfb rewrite dispatch part & slightly improve min,max,cummin,cummax Jaroslav Hajek <highegg@gmail.com> parents: 9469 diff changeset	260 if (dim < 0)
a5035bc7fbfb rewrite dispatch part & slightly improve min,max,cummin,cummax Jaroslav Hajek <highegg@gmail.com> parents: 9469 diff changeset	261 dim = dv.first_non_singleton ();
a5035bc7fbfb rewrite dispatch part & slightly improve min,max,cummin,cummax Jaroslav Hajek <highegg@gmail.com> parents: 9469 diff changeset	262
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	263 octave_idx_type nr = dv(0);
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	264 octave_idx_type nc = dv(1);
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	265
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	266 if (dim == 0)
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	267 {
9790 a5035bc7fbfb rewrite dispatch part & slightly improve min,max,cummin,cummax Jaroslav Hajek <highegg@gmail.com> parents: 9469 diff changeset	268 idx_arg.clear (1, nc);
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	269 octave_idx_type nel = 0;
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	270 for (octave_idx_type j = 0; j < nc; j++)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	271 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	272 Complex tmp_max;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	273 double abs_max = octave_NaN;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	274 octave_idx_type idx_j = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	275 for (octave_idx_type i = cidx(j); i < cidx(j+1); i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	276 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	277 if (ridx(i) != idx_j)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	278 break;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	279 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	280 idx_j++;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	281 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	282
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	283 if (idx_j != nr)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	284 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	285 tmp_max = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	286 abs_max = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	287 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	288
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	289 for (octave_idx_type i = cidx(j); i < cidx(j+1); i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	290 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	291 Complex tmp = data (i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	292
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	293 if (xisnan (tmp))
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	294 continue;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	295
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	296 double abs_tmp = std::abs (tmp);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	297
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	298 if (xisnan (abs_max) \|\| abs_tmp > abs_max)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	299 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	300 idx_j = ridx (i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	301 tmp_max = tmp;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	302 abs_max = abs_tmp;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	303 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	304 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	305
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	306 idx_arg.elem (j) = xisnan (tmp_max) ? 0 : idx_j;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	307 if (abs_max != 0.)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	308 nel++;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	309 }
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	310
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	311 result = SparseComplexMatrix (1, nc, nel);
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	312
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	313 octave_idx_type ii = 0;
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	314 result.xcidx (0) = 0;
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	315 for (octave_idx_type j = 0; j < nc; j++)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	316 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	317 Complex tmp = elem (idx_arg(j), j);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	318 if (tmp != 0.)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	319 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	320 result.xdata (ii) = tmp;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	321 result.xridx (ii++) = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	322 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	323 result.xcidx (j+1) = ii;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	324 }
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	325 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	326 else
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	327 {
10350 12884915a8e4 merge MArray classes & improve Array interface Jaroslav Hajek <highegg@gmail.com> parents: 10314 diff changeset	328 idx_arg.resize (nr, 1, 0);
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	329
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	330 for (octave_idx_type i = cidx(0); i < cidx(1); i++)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	331 idx_arg.elem(ridx(i)) = -1;
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	332
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	333 for (octave_idx_type j = 0; j < nc; j++)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	334 for (octave_idx_type i = 0; i < nr; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	335 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	336 if (idx_arg.elem(i) != -1)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	337 continue;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	338 bool found = false;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	339 for (octave_idx_type k = cidx(j); k < cidx(j+1); k++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	340 if (ridx(k) == i)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	341 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	342 found = true;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	343 break;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	344 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	345
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	346 if (!found)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	347 idx_arg.elem(i) = j;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	348
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	349 }
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	350
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	351 for (octave_idx_type j = 0; j < nc; j++)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	352 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	353 for (octave_idx_type i = cidx(j); i < cidx(j+1); i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	354 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	355 octave_idx_type ir = ridx (i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	356 octave_idx_type ix = idx_arg.elem (ir);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	357 Complex tmp = data (i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	358
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	359 if (xisnan (tmp))
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	360 continue;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	361 else if (ix == -1 \|\| std::abs(tmp) > std::abs(elem (ir, ix)))
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	362 idx_arg.elem (ir) = j;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	363 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	364 }
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	365
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	366 octave_idx_type nel = 0;
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	367 for (octave_idx_type j = 0; j < nr; j++)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	368 if (idx_arg.elem(j) == -1 \|\| elem (j, idx_arg.elem (j)) != 0.)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	369 nel++;
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	370
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	371 result = SparseComplexMatrix (nr, 1, nel);
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	372
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	373 octave_idx_type ii = 0;
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	374 result.xcidx (0) = 0;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	375 result.xcidx (1) = nel;
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	376 for (octave_idx_type j = 0; j < nr; j++)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	377 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	378 if (idx_arg(j) == -1)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	379 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	380 idx_arg(j) = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	381 result.xdata (ii) = Complex_NaN_result;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	382 result.xridx (ii++) = j;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	383 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	384 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	385 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	386 Complex tmp = elem (j, idx_arg(j));
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	387 if (tmp != 0.)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	388 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	389 result.xdata (ii) = tmp;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	390 result.xridx (ii++) = j;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	391 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	392 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	393 }
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	394 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	395
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	396 return result;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	397 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	398
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	399 SparseComplexMatrix
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	400 SparseComplexMatrix::min (int dim) const
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	401 {
9790 a5035bc7fbfb rewrite dispatch part & slightly improve min,max,cummin,cummax Jaroslav Hajek <highegg@gmail.com> parents: 9469 diff changeset	402 Array<octave_idx_type> dummy_idx;
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	403 return min (dummy_idx, dim);
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	404 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	405
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	406 SparseComplexMatrix
9790 a5035bc7fbfb rewrite dispatch part & slightly improve min,max,cummin,cummax Jaroslav Hajek <highegg@gmail.com> parents: 9469 diff changeset	407 SparseComplexMatrix::min (Array<octave_idx_type>& idx_arg, int dim) const
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	408 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	409 SparseComplexMatrix result;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	410 dim_vector dv = dims ();
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	411
9790 a5035bc7fbfb rewrite dispatch part & slightly improve min,max,cummin,cummax Jaroslav Hajek <highegg@gmail.com> parents: 9469 diff changeset	412 if (dv.numel () == 0 \|\| dim >= dv.length ())
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	413 return result;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	414
9790 a5035bc7fbfb rewrite dispatch part & slightly improve min,max,cummin,cummax Jaroslav Hajek <highegg@gmail.com> parents: 9469 diff changeset	415 if (dim < 0)
a5035bc7fbfb rewrite dispatch part & slightly improve min,max,cummin,cummax Jaroslav Hajek <highegg@gmail.com> parents: 9469 diff changeset	416 dim = dv.first_non_singleton ();
a5035bc7fbfb rewrite dispatch part & slightly improve min,max,cummin,cummax Jaroslav Hajek <highegg@gmail.com> parents: 9469 diff changeset	417
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	418 octave_idx_type nr = dv(0);
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	419 octave_idx_type nc = dv(1);
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	420
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	421 if (dim == 0)
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	422 {
9790 a5035bc7fbfb rewrite dispatch part & slightly improve min,max,cummin,cummax Jaroslav Hajek <highegg@gmail.com> parents: 9469 diff changeset	423 idx_arg.clear (1, nc);
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	424 octave_idx_type nel = 0;
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	425 for (octave_idx_type j = 0; j < nc; j++)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	426 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	427 Complex tmp_min;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	428 double abs_min = octave_NaN;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	429 octave_idx_type idx_j = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	430 for (octave_idx_type i = cidx(j); i < cidx(j+1); i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	431 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	432 if (ridx(i) != idx_j)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	433 break;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	434 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	435 idx_j++;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	436 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	437
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	438 if (idx_j != nr)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	439 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	440 tmp_min = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	441 abs_min = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	442 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	443
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	444 for (octave_idx_type i = cidx(j); i < cidx(j+1); i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	445 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	446 Complex tmp = data (i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	447
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	448 if (xisnan (tmp))
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	449 continue;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	450
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	451 double abs_tmp = std::abs (tmp);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	452
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	453 if (xisnan (abs_min) \|\| abs_tmp < abs_min)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	454 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	455 idx_j = ridx (i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	456 tmp_min = tmp;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	457 abs_min = abs_tmp;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	458 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	459 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	460
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	461 idx_arg.elem (j) = xisnan (tmp_min) ? 0 : idx_j;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	462 if (abs_min != 0.)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	463 nel++;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	464 }
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	465
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	466 result = SparseComplexMatrix (1, nc, nel);
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	467
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	468 octave_idx_type ii = 0;
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	469 result.xcidx (0) = 0;
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	470 for (octave_idx_type j = 0; j < nc; j++)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	471 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	472 Complex tmp = elem (idx_arg(j), j);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	473 if (tmp != 0.)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	474 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	475 result.xdata (ii) = tmp;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	476 result.xridx (ii++) = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	477 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	478 result.xcidx (j+1) = ii;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	479 }
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	480 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	481 else
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	482 {
10350 12884915a8e4 merge MArray classes & improve Array interface Jaroslav Hajek <highegg@gmail.com> parents: 10314 diff changeset	483 idx_arg.resize (nr, 1, 0);
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	484
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	485 for (octave_idx_type i = cidx(0); i < cidx(1); i++)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	486 idx_arg.elem(ridx(i)) = -1;
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	487
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	488 for (octave_idx_type j = 0; j < nc; j++)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	489 for (octave_idx_type i = 0; i < nr; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	490 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	491 if (idx_arg.elem(i) != -1)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	492 continue;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	493 bool found = false;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	494 for (octave_idx_type k = cidx(j); k < cidx(j+1); k++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	495 if (ridx(k) == i)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	496 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	497 found = true;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	498 break;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	499 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	500
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	501 if (!found)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	502 idx_arg.elem(i) = j;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	503
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	504 }
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	505
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	506 for (octave_idx_type j = 0; j < nc; j++)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	507 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	508 for (octave_idx_type i = cidx(j); i < cidx(j+1); i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	509 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	510 octave_idx_type ir = ridx (i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	511 octave_idx_type ix = idx_arg.elem (ir);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	512 Complex tmp = data (i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	513
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	514 if (xisnan (tmp))
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	515 continue;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	516 else if (ix == -1 \|\| std::abs(tmp) < std::abs(elem (ir, ix)))
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	517 idx_arg.elem (ir) = j;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	518 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	519 }
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	520
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	521 octave_idx_type nel = 0;
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	522 for (octave_idx_type j = 0; j < nr; j++)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	523 if (idx_arg.elem(j) == -1 \|\| elem (j, idx_arg.elem (j)) != 0.)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	524 nel++;
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	525
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	526 result = SparseComplexMatrix (nr, 1, nel);
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	527
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	528 octave_idx_type ii = 0;
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	529 result.xcidx (0) = 0;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	530 result.xcidx (1) = nel;
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	531 for (octave_idx_type j = 0; j < nr; j++)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	532 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	533 if (idx_arg(j) == -1)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	534 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	535 idx_arg(j) = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	536 result.xdata (ii) = Complex_NaN_result;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	537 result.xridx (ii++) = j;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	538 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	539 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	540 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	541 Complex tmp = elem (j, idx_arg(j));
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	542 if (tmp != 0.)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	543 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	544 result.xdata (ii) = tmp;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	545 result.xridx (ii++) = j;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	546 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	547 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	548 }
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	549 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	550
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	551 return result;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	552 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	553
8303 b11c31849b44 improve norm computation capabilities Jaroslav Hajek <highegg@gmail.com> parents: 7922 diff changeset	554 ComplexRowVector
b11c31849b44 improve norm computation capabilities Jaroslav Hajek <highegg@gmail.com> parents: 7922 diff changeset	555 SparseComplexMatrix::row (octave_idx_type i) const
b11c31849b44 improve norm computation capabilities Jaroslav Hajek <highegg@gmail.com> parents: 7922 diff changeset	556 {
b11c31849b44 improve norm computation capabilities Jaroslav Hajek <highegg@gmail.com> parents: 7922 diff changeset	557 octave_idx_type nc = columns ();
b11c31849b44 improve norm computation capabilities Jaroslav Hajek <highegg@gmail.com> parents: 7922 diff changeset	558 ComplexRowVector retval (nc, 0);
b11c31849b44 improve norm computation capabilities Jaroslav Hajek <highegg@gmail.com> parents: 7922 diff changeset	559
b11c31849b44 improve norm computation capabilities Jaroslav Hajek <highegg@gmail.com> parents: 7922 diff changeset	560 for (octave_idx_type j = 0; j < nc; j++)
b11c31849b44 improve norm computation capabilities Jaroslav Hajek <highegg@gmail.com> parents: 7922 diff changeset	561 for (octave_idx_type k = cidx (j); k < cidx (j+1); k++)
b11c31849b44 improve norm computation capabilities Jaroslav Hajek <highegg@gmail.com> parents: 7922 diff changeset	562 {
b11c31849b44 improve norm computation capabilities Jaroslav Hajek <highegg@gmail.com> parents: 7922 diff changeset	563 if (ridx (k) == i)
b11c31849b44 improve norm computation capabilities Jaroslav Hajek <highegg@gmail.com> parents: 7922 diff changeset	564 {
b11c31849b44 improve norm computation capabilities Jaroslav Hajek <highegg@gmail.com> parents: 7922 diff changeset	565 retval(j) = data (k);
b11c31849b44 improve norm computation capabilities Jaroslav Hajek <highegg@gmail.com> parents: 7922 diff changeset	566 break;
b11c31849b44 improve norm computation capabilities Jaroslav Hajek <highegg@gmail.com> parents: 7922 diff changeset	567 }
b11c31849b44 improve norm computation capabilities Jaroslav Hajek <highegg@gmail.com> parents: 7922 diff changeset	568 }
b11c31849b44 improve norm computation capabilities Jaroslav Hajek <highegg@gmail.com> parents: 7922 diff changeset	569
b11c31849b44 improve norm computation capabilities Jaroslav Hajek <highegg@gmail.com> parents: 7922 diff changeset	570 return retval;
b11c31849b44 improve norm computation capabilities Jaroslav Hajek <highegg@gmail.com> parents: 7922 diff changeset	571 }
b11c31849b44 improve norm computation capabilities Jaroslav Hajek <highegg@gmail.com> parents: 7922 diff changeset	572
b11c31849b44 improve norm computation capabilities Jaroslav Hajek <highegg@gmail.com> parents: 7922 diff changeset	573 ComplexColumnVector
b11c31849b44 improve norm computation capabilities Jaroslav Hajek <highegg@gmail.com> parents: 7922 diff changeset	574 SparseComplexMatrix::column (octave_idx_type i) const
b11c31849b44 improve norm computation capabilities Jaroslav Hajek <highegg@gmail.com> parents: 7922 diff changeset	575 {
b11c31849b44 improve norm computation capabilities Jaroslav Hajek <highegg@gmail.com> parents: 7922 diff changeset	576 octave_idx_type nr = rows ();
b11c31849b44 improve norm computation capabilities Jaroslav Hajek <highegg@gmail.com> parents: 7922 diff changeset	577 ComplexColumnVector retval (nr);
b11c31849b44 improve norm computation capabilities Jaroslav Hajek <highegg@gmail.com> parents: 7922 diff changeset	578
b11c31849b44 improve norm computation capabilities Jaroslav Hajek <highegg@gmail.com> parents: 7922 diff changeset	579 for (octave_idx_type k = cidx (i); k < cidx (i+1); k++)
b11c31849b44 improve norm computation capabilities Jaroslav Hajek <highegg@gmail.com> parents: 7922 diff changeset	580 retval(ridx (k)) = data (k);
b11c31849b44 improve norm computation capabilities Jaroslav Hajek <highegg@gmail.com> parents: 7922 diff changeset	581
b11c31849b44 improve norm computation capabilities Jaroslav Hajek <highegg@gmail.com> parents: 7922 diff changeset	582 return retval;
b11c31849b44 improve norm computation capabilities Jaroslav Hajek <highegg@gmail.com> parents: 7922 diff changeset	583 }
b11c31849b44 improve norm computation capabilities Jaroslav Hajek <highegg@gmail.com> parents: 7922 diff changeset	584
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	585 // destructive insert/delete/reorder operations
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	586
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	587 SparseComplexMatrix&
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	588 SparseComplexMatrix::insert (const SparseMatrix& a, octave_idx_type r, octave_idx_type c)
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	589 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	590 SparseComplexMatrix tmp (a);
6060 ced23ae2b5cc [project @ 2006-10-18 02:56:22 by jwe] jwe parents: 5893 diff changeset	591 return insert (tmp /a/, r, c);
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	592 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	593
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	594 SparseComplexMatrix&
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	595 SparseComplexMatrix::insert (const SparseComplexMatrix& a, octave_idx_type r, octave_idx_type c)
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	596 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	597 MSparse<Complex>::insert (a, r, c);
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	598 return *this;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	599 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	600
6823 9fddcc586065 [project @ 2007-08-24 08:27:27 by dbateman] dbateman parents: 6482 diff changeset	601 SparseComplexMatrix&
9fddcc586065 [project @ 2007-08-24 08:27:27 by dbateman] dbateman parents: 6482 diff changeset	602 SparseComplexMatrix::insert (const SparseMatrix& a, const Array<octave_idx_type>& indx)
9fddcc586065 [project @ 2007-08-24 08:27:27 by dbateman] dbateman parents: 6482 diff changeset	603 {
9fddcc586065 [project @ 2007-08-24 08:27:27 by dbateman] dbateman parents: 6482 diff changeset	604 SparseComplexMatrix tmp (a);
9fddcc586065 [project @ 2007-08-24 08:27:27 by dbateman] dbateman parents: 6482 diff changeset	605 return insert (tmp /a/, indx);
9fddcc586065 [project @ 2007-08-24 08:27:27 by dbateman] dbateman parents: 6482 diff changeset	606 }
9fddcc586065 [project @ 2007-08-24 08:27:27 by dbateman] dbateman parents: 6482 diff changeset	607
9fddcc586065 [project @ 2007-08-24 08:27:27 by dbateman] dbateman parents: 6482 diff changeset	608 SparseComplexMatrix&
9fddcc586065 [project @ 2007-08-24 08:27:27 by dbateman] dbateman parents: 6482 diff changeset	609 SparseComplexMatrix::insert (const SparseComplexMatrix& a, const Array<octave_idx_type>& indx)
9fddcc586065 [project @ 2007-08-24 08:27:27 by dbateman] dbateman parents: 6482 diff changeset	610 {
9fddcc586065 [project @ 2007-08-24 08:27:27 by dbateman] dbateman parents: 6482 diff changeset	611 MSparse<Complex>::insert (a, indx);
9fddcc586065 [project @ 2007-08-24 08:27:27 by dbateman] dbateman parents: 6482 diff changeset	612 return *this;
9fddcc586065 [project @ 2007-08-24 08:27:27 by dbateman] dbateman parents: 6482 diff changeset	613 }
9fddcc586065 [project @ 2007-08-24 08:27:27 by dbateman] dbateman parents: 6482 diff changeset	614
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	615 SparseComplexMatrix
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	616 SparseComplexMatrix::concat (const SparseComplexMatrix& rb,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	617 const Array<octave_idx_type>& ra_idx)
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	618 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	619 // Don't use numel to avoid all possiblity of an overflow
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	620 if (rb.rows () > 0 && rb.cols () > 0)
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	621 insert (rb, ra_idx(0), ra_idx(1));
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	622 return *this;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	623 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	624
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	625 SparseComplexMatrix
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	626 SparseComplexMatrix::concat (const SparseMatrix& rb, const Array<octave_idx_type>& ra_idx)
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	627 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	628 SparseComplexMatrix tmp (rb);
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	629 if (rb.rows () > 0 && rb.cols () > 0)
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	630 insert (tmp, ra_idx(0), ra_idx(1));
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	631 return *this;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	632 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	633
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	634 ComplexMatrix
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	635 SparseComplexMatrix::matrix_value (void) const
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	636 {
10431 5dd7a7bf4950 simplify sparse->full conversions in liboctave Jaroslav Hajek <highegg@gmail.com> parents: 10421 diff changeset	637 return Sparse<Complex>::array_value ();
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	638 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	639
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	640 SparseComplexMatrix
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	641 SparseComplexMatrix::hermitian (void) const
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	642 {
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	643 octave_idx_type nr = rows ();
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	644 octave_idx_type nc = cols ();
5681 233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	645 octave_idx_type nz = nnz ();
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	646 SparseComplexMatrix retval (nc, nr, nz);
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	647
5648 69a4f320d95a [project @ 2006-03-08 20:17:37 by dbateman] dbateman parents: 5630 diff changeset	648 for (octave_idx_type i = 0; i < nz; i++)
8987 542015fada9e Eliminate the workspace in sparse transpose. Jason Riedy <jason@acm.org> parents: 8968 diff changeset	649 retval.xcidx (ridx (i) + 1)++;
542015fada9e Eliminate the workspace in sparse transpose. Jason Riedy <jason@acm.org> parents: 8968 diff changeset	650 // retval.xcidx[1:nr] holds the row degrees for rows 0:(nr-1)
5648 69a4f320d95a [project @ 2006-03-08 20:17:37 by dbateman] dbateman parents: 5630 diff changeset	651 nz = 0;
8987 542015fada9e Eliminate the workspace in sparse transpose. Jason Riedy <jason@acm.org> parents: 8968 diff changeset	652 for (octave_idx_type i = 1; i <= nr; i++)
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	653 {
8987 542015fada9e Eliminate the workspace in sparse transpose. Jason Riedy <jason@acm.org> parents: 8968 diff changeset	654 const octave_idx_type tmp = retval.xcidx (i);
542015fada9e Eliminate the workspace in sparse transpose. Jason Riedy <jason@acm.org> parents: 8968 diff changeset	655 retval.xcidx (i) = nz;
542015fada9e Eliminate the workspace in sparse transpose. Jason Riedy <jason@acm.org> parents: 8968 diff changeset	656 nz += tmp;
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	657 }
8987 542015fada9e Eliminate the workspace in sparse transpose. Jason Riedy <jason@acm.org> parents: 8968 diff changeset	658 // retval.xcidx[1:nr] holds row entry start offsets for rows 0:(nr-1)
5648 69a4f320d95a [project @ 2006-03-08 20:17:37 by dbateman] dbateman parents: 5630 diff changeset	659
69a4f320d95a [project @ 2006-03-08 20:17:37 by dbateman] dbateman parents: 5630 diff changeset	660 for (octave_idx_type j = 0; j < nc; j++)
69a4f320d95a [project @ 2006-03-08 20:17:37 by dbateman] dbateman parents: 5630 diff changeset	661 for (octave_idx_type k = cidx(j); k < cidx(j+1); k++)
69a4f320d95a [project @ 2006-03-08 20:17:37 by dbateman] dbateman parents: 5630 diff changeset	662 {
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	663 octave_idx_type q = retval.xcidx (ridx (k) + 1)++;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	664 retval.xridx (q) = j;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	665 retval.xdata (q) = conj (data (k));
5648 69a4f320d95a [project @ 2006-03-08 20:17:37 by dbateman] dbateman parents: 5630 diff changeset	666 }
8987 542015fada9e Eliminate the workspace in sparse transpose. Jason Riedy <jason@acm.org> parents: 8968 diff changeset	667 assert (nnz () == retval.xcidx (nr));
542015fada9e Eliminate the workspace in sparse transpose. Jason Riedy <jason@acm.org> parents: 8968 diff changeset	668 // retval.xcidx[1:nr] holds row entry end offsets for rows 0:(nr-1)
542015fada9e Eliminate the workspace in sparse transpose. Jason Riedy <jason@acm.org> parents: 8968 diff changeset	669 // and retval.xcidx[0:(nr-1)] holds their row entry start offsets
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	670
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	671 return retval;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	672 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	673
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	674 SparseComplexMatrix
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	675 conj (const SparseComplexMatrix& a)
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	676 {
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	677 octave_idx_type nr = a.rows ();
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	678 octave_idx_type nc = a.cols ();
5681 233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	679 octave_idx_type nz = a.nnz ();
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	680 SparseComplexMatrix retval (nc, nr, nz);
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	681
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	682 for (octave_idx_type i = 0; i < nc + 1; i++)
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	683 retval.cidx (i) = a.cidx (i);
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	684
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	685 for (octave_idx_type i = 0; i < nz; i++)
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	686 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	687 retval.data (i) = conj (a.data (i));
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	688 retval.ridx (i) = a.ridx (i);
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	689 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	690
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	691 return retval;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	692 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	693
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	694 SparseComplexMatrix
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	695 SparseComplexMatrix::inverse (void) const
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	696 {
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	697 octave_idx_type info;
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	698 double rcond;
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	699 MatrixType mattype (*this);
5506 b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: 5451 diff changeset	700 return inverse (mattype, info, rcond, 0, 0);
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: 5451 diff changeset	701 }
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: 5451 diff changeset	702
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: 5451 diff changeset	703 SparseComplexMatrix
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	704 SparseComplexMatrix::inverse (MatrixType& mattype) const
5506 b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: 5451 diff changeset	705 {
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: 5451 diff changeset	706 octave_idx_type info;
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: 5451 diff changeset	707 double rcond;
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: 5451 diff changeset	708 return inverse (mattype, info, rcond, 0, 0);
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	709 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	710
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	711 SparseComplexMatrix
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	712 SparseComplexMatrix::inverse (MatrixType& mattype, octave_idx_type& info) const
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	713 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	714 double rcond;
5506 b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: 5451 diff changeset	715 return inverse (mattype, info, rcond, 0, 0);
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: 5451 diff changeset	716 }
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: 5451 diff changeset	717
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: 5451 diff changeset	718 SparseComplexMatrix
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	719 SparseComplexMatrix::dinverse (MatrixType &mattyp, octave_idx_type& info,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	720 double& rcond, const bool,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	721 const bool calccond) const
5506 b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: 5451 diff changeset	722 {
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: 5451 diff changeset	723 SparseComplexMatrix retval;
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: 5451 diff changeset	724
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: 5451 diff changeset	725 octave_idx_type nr = rows ();
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: 5451 diff changeset	726 octave_idx_type nc = cols ();
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: 5451 diff changeset	727 info = 0;
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: 5451 diff changeset	728
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: 5451 diff changeset	729 if (nr == 0 \|\| nc == 0 \|\| nr != nc)
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: 5451 diff changeset	730 (*current_liboctave_error_handler) ("inverse requires square matrix");
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: 5451 diff changeset	731 else
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: 5451 diff changeset	732 {
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: 5451 diff changeset	733 // Print spparms("spumoni") info if requested
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: 5451 diff changeset	734 int typ = mattyp.type ();
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: 5451 diff changeset	735 mattyp.info ();
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: 5451 diff changeset	736
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	737 if (typ == MatrixType::Diagonal \|\|
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	738 typ == MatrixType::Permuted_Diagonal)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	739 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	740 if (typ == MatrixType::Permuted_Diagonal)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	741 retval = transpose();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	742 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	743 retval = *this;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	744
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	745 // Force make_unique to be called
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	746 Complex *v = retval.data();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	747
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	748 if (calccond)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	749 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	750 double dmax = 0., dmin = octave_Inf;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	751 for (octave_idx_type i = 0; i < nr; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	752 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	753 double tmp = std::abs(v[i]);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	754 if (tmp > dmax)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	755 dmax = tmp;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	756 if (tmp < dmin)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	757 dmin = tmp;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	758 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	759 rcond = dmin / dmax;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	760 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	761
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	762 for (octave_idx_type i = 0; i < nr; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	763 v[i] = 1.0 / v[i];
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	764 }
5506 b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: 5451 diff changeset	765 else
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	766 (*current_liboctave_error_handler) ("incorrect matrix type");
5506 b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: 5451 diff changeset	767 }
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: 5451 diff changeset	768
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: 5451 diff changeset	769 return retval;
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: 5451 diff changeset	770 }
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: 5451 diff changeset	771
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: 5451 diff changeset	772 SparseComplexMatrix
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	773 SparseComplexMatrix::tinverse (MatrixType &mattyp, octave_idx_type& info,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	774 double& rcond, const bool,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	775 const bool calccond) const
5506 b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: 5451 diff changeset	776 {
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: 5451 diff changeset	777 SparseComplexMatrix retval;
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: 5451 diff changeset	778
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: 5451 diff changeset	779 octave_idx_type nr = rows ();
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: 5451 diff changeset	780 octave_idx_type nc = cols ();
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: 5451 diff changeset	781 info = 0;
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: 5451 diff changeset	782
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: 5451 diff changeset	783 if (nr == 0 \|\| nc == 0 \|\| nr != nc)
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: 5451 diff changeset	784 (*current_liboctave_error_handler) ("inverse requires square matrix");
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: 5451 diff changeset	785 else
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: 5451 diff changeset	786 {
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: 5451 diff changeset	787 // Print spparms("spumoni") info if requested
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: 5451 diff changeset	788 int typ = mattyp.type ();
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: 5451 diff changeset	789 mattyp.info ();
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: 5451 diff changeset	790
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	791 if (typ == MatrixType::Upper \|\| typ == MatrixType::Permuted_Upper \|\|
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	792 typ == MatrixType::Lower \|\| typ == MatrixType::Permuted_Lower)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	793 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	794 double anorm = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	795 double ainvnorm = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	796
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	797 if (calccond)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	798 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	799 // Calculate the 1-norm of matrix for rcond calculation
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	800 for (octave_idx_type j = 0; j < nr; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	801 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	802 double atmp = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	803 for (octave_idx_type i = cidx(j); i < cidx(j+1); i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	804 atmp += std::abs(data(i));
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	805 if (atmp > anorm)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	806 anorm = atmp;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	807 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	808 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	809
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	810 if (typ == MatrixType::Upper \|\| typ == MatrixType::Lower)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	811 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	812 octave_idx_type nz = nnz ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	813 octave_idx_type cx = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	814 octave_idx_type nz2 = nz;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	815 retval = SparseComplexMatrix (nr, nc, nz2);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	816
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	817 for (octave_idx_type i = 0; i < nr; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	818 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	819 octave_quit ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	820 // place the 1 in the identity position
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	821 octave_idx_type cx_colstart = cx;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	822
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	823 if (cx == nz2)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	824 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	825 nz2 *= 2;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	826 retval.change_capacity (nz2);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	827 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	828
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	829 retval.xcidx(i) = cx;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	830 retval.xridx(cx) = i;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	831 retval.xdata(cx) = 1.0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	832 cx++;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	833
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	834 // iterate accross columns of input matrix
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	835 for (octave_idx_type j = i+1; j < nr; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	836 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	837 Complex v = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	838 // iterate to calculate sum
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	839 octave_idx_type colXp = retval.xcidx(i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	840 octave_idx_type colUp = cidx(j);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	841 octave_idx_type rpX, rpU;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	842
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	843 if (cidx(j) == cidx(j+1))
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	844 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	845 (*current_liboctave_error_handler)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	846 ("division by zero");
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	847 goto inverse_singular;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	848 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	849
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	850 do
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	851 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	852 octave_quit ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	853 rpX = retval.xridx(colXp);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	854 rpU = ridx(colUp);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	855
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	856 if (rpX < rpU)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	857 colXp++;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	858 else if (rpX > rpU)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	859 colUp++;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	860 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	861 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	862 v -= retval.xdata(colXp) * data(colUp);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	863 colXp++;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	864 colUp++;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	865 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	866 } while ((rpX<j) && (rpU<j) &&
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	867 (colXp<cx) && (colUp<nz));
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	868
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	869
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	870 // get A(m,m)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	871 if (typ == MatrixType::Upper)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	872 colUp = cidx(j+1) - 1;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	873 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	874 colUp = cidx(j);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	875 Complex pivot = data(colUp);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	876 if (pivot == 0. \|\| ridx(colUp) != j)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	877 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	878 (*current_liboctave_error_handler)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	879 ("division by zero");
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	880 goto inverse_singular;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	881 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	882
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	883 if (v != 0.)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	884 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	885 if (cx == nz2)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	886 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	887 nz2 *= 2;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	888 retval.change_capacity (nz2);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	889 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	890
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	891 retval.xridx(cx) = j;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	892 retval.xdata(cx) = v / pivot;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	893 cx++;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	894 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	895 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	896
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	897 // get A(m,m)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	898 octave_idx_type colUp;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	899 if (typ == MatrixType::Upper)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	900 colUp = cidx(i+1) - 1;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	901 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	902 colUp = cidx(i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	903 Complex pivot = data(colUp);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	904 if (pivot == 0. \|\| ridx(colUp) != i)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	905 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	906 (*current_liboctave_error_handler) ("division by zero");
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	907 goto inverse_singular;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	908 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	909
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	910 if (pivot != 1.0)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	911 for (octave_idx_type j = cx_colstart; j < cx; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	912 retval.xdata(j) /= pivot;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	913 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	914 retval.xcidx(nr) = cx;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	915 retval.maybe_compress ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	916 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	917 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	918 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	919 octave_idx_type nz = nnz ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	920 octave_idx_type cx = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	921 octave_idx_type nz2 = nz;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	922 retval = SparseComplexMatrix (nr, nc, nz2);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	923
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	924 OCTAVE_LOCAL_BUFFER (Complex, work, nr);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	925 OCTAVE_LOCAL_BUFFER (octave_idx_type, rperm, nr);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	926
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	927 octave_idx_type *perm = mattyp.triangular_perm();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	928 if (typ == MatrixType::Permuted_Upper)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	929 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	930 for (octave_idx_type i = 0; i < nr; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	931 rperm[perm[i]] = i;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	932 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	933 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	934 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	935 for (octave_idx_type i = 0; i < nr; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	936 rperm[i] = perm[i];
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	937 for (octave_idx_type i = 0; i < nr; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	938 perm[rperm[i]] = i;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	939 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	940
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	941 for (octave_idx_type i = 0; i < nr; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	942 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	943 octave_quit ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	944 octave_idx_type iidx = rperm[i];
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	945
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	946 for (octave_idx_type j = 0; j < nr; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	947 work[j] = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	948
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	949 // place the 1 in the identity position
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	950 work[iidx] = 1.0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	951
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	952 // iterate accross columns of input matrix
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	953 for (octave_idx_type j = iidx+1; j < nr; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	954 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	955 Complex v = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	956 octave_idx_type jidx = perm[j];
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	957 // iterate to calculate sum
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	958 for (octave_idx_type k = cidx(jidx);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	959 k < cidx(jidx+1); k++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	960 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	961 octave_quit ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	962 v -= work[ridx(k)] * data(k);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	963 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	964
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	965 // get A(m,m)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	966 Complex pivot;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	967 if (typ == MatrixType::Permuted_Upper)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	968 pivot = data(cidx(jidx+1) - 1);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	969 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	970 pivot = data(cidx(jidx));
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	971 if (pivot == 0.)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	972 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	973 (*current_liboctave_error_handler)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	974 ("division by zero");
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	975 goto inverse_singular;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	976 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	977
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	978 work[j] = v / pivot;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	979 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	980
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	981 // get A(m,m)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	982 octave_idx_type colUp;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	983 if (typ == MatrixType::Permuted_Upper)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	984 colUp = cidx(perm[iidx]+1) - 1;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	985 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	986 colUp = cidx(perm[iidx]);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	987
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	988 Complex pivot = data(colUp);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	989 if (pivot == 0.)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	990 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	991 (*current_liboctave_error_handler)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	992 ("division by zero");
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	993 goto inverse_singular;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	994 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	995
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	996 octave_idx_type new_cx = cx;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	997 for (octave_idx_type j = iidx; j < nr; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	998 if (work[j] != 0.0)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	999 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1000 new_cx++;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1001 if (pivot != 1.0)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1002 work[j] /= pivot;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1003 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1004
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1005 if (cx < new_cx)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1006 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1007 nz2 = (2nz2 < new_cx ? new_cx : 2nz2);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1008 retval.change_capacity (nz2);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1009 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1010
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1011 retval.xcidx(i) = cx;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1012 for (octave_idx_type j = iidx; j < nr; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1013 if (work[j] != 0.)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1014 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1015 retval.xridx(cx) = j;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1016 retval.xdata(cx++) = work[j];
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1017 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1018 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1019
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1020 retval.xcidx(nr) = cx;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1021 retval.maybe_compress ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1022 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1023
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1024 if (calccond)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1025 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1026 // Calculate the 1-norm of inverse matrix for rcond calculation
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1027 for (octave_idx_type j = 0; j < nr; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1028 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1029 double atmp = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1030 for (octave_idx_type i = retval.cidx(j);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1031 i < retval.cidx(j+1); i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1032 atmp += std::abs(retval.data(i));
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1033 if (atmp > ainvnorm)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1034 ainvnorm = atmp;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1035 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1036
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1037 rcond = 1. / ainvnorm / anorm;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1038 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1039 }
5506 b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: 5451 diff changeset	1040 else
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1041 (*current_liboctave_error_handler) ("incorrect matrix type");
5506 b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: 5451 diff changeset	1042 }
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: 5451 diff changeset	1043
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: 5451 diff changeset	1044 return retval;
5876 565d0cd4d9d0 [project @ 2006-07-01 19:42:06 by dbateman] dbateman parents: 5785 diff changeset	1045
565d0cd4d9d0 [project @ 2006-07-01 19:42:06 by dbateman] dbateman parents: 5785 diff changeset	1046 inverse_singular:
565d0cd4d9d0 [project @ 2006-07-01 19:42:06 by dbateman] dbateman parents: 5785 diff changeset	1047 return SparseComplexMatrix();
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1048 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1049
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1050 SparseComplexMatrix
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	1051 SparseComplexMatrix::inverse (MatrixType& mattype, octave_idx_type& info,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1052 double& rcond, int, int calc_cond) const
5506 b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: 5451 diff changeset	1053 {
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: 5451 diff changeset	1054 int typ = mattype.type (false);
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: 5451 diff changeset	1055 SparseComplexMatrix ret;
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: 5451 diff changeset	1056
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	1057 if (typ == MatrixType::Unknown)
5506 b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: 5451 diff changeset	1058 typ = mattype.type (*this);
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: 5451 diff changeset	1059
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	1060 if (typ == MatrixType::Diagonal \|\| typ == MatrixType::Permuted_Diagonal)
5506 b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: 5451 diff changeset	1061 ret = dinverse (mattype, info, rcond, true, calc_cond);
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	1062 else if (typ == MatrixType::Upper \|\| typ == MatrixType::Permuted_Upper)
5506 b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: 5451 diff changeset	1063 ret = tinverse (mattype, info, rcond, true, calc_cond).transpose();
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	1064 else if (typ == MatrixType::Lower \|\| typ == MatrixType::Permuted_Lower)
6185 da5a11b3d13e [project @ 2006-11-22 18:57:26 by dbateman] dbateman parents: 6060 diff changeset	1065 {
da5a11b3d13e [project @ 2006-11-22 18:57:26 by dbateman] dbateman parents: 6060 diff changeset	1066 MatrixType newtype = mattype.transpose();
da5a11b3d13e [project @ 2006-11-22 18:57:26 by dbateman] dbateman parents: 6060 diff changeset	1067 ret = transpose().tinverse (newtype, info, rcond, true, calc_cond);
da5a11b3d13e [project @ 2006-11-22 18:57:26 by dbateman] dbateman parents: 6060 diff changeset	1068 }
6840 2f17d5556756 [project @ 2007-08-29 08:37:47 by dbateman] dbateman parents: 6823 diff changeset	1069 else
5506 b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: 5451 diff changeset	1070 {
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: 5451 diff changeset	1071 if (mattype.is_hermitian())
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1072 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1073 MatrixType tmp_typ (MatrixType::Upper);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1074 SparseComplexCHOL fact (*this, info, false);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1075 rcond = fact.rcond();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1076 if (info == 0)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1077 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1078 double rcond2;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1079 SparseMatrix Q = fact.Q();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1080 SparseComplexMatrix InvL = fact.L().transpose().
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1081 tinverse(tmp_typ, info, rcond2, true, false);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1082 ret = Q * InvL.hermitian() * InvL * Q.transpose();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1083 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1084 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1085 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1086 // Matrix is either singular or not positive definite
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1087 mattype.mark_as_unsymmetric ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1088 typ = MatrixType::Full;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1089 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1090 }
5506 b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: 5451 diff changeset	1091
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: 5451 diff changeset	1092 if (!mattype.is_hermitian())
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1093 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1094 octave_idx_type n = rows();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1095 ColumnVector Qinit(n);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1096 for (octave_idx_type i = 0; i < n; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1097 Qinit(i) = i;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1098
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1099 MatrixType tmp_typ (MatrixType::Upper);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1100 SparseComplexLU fact (*this, Qinit, Matrix (), false, false);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1101 rcond = fact.rcond();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1102 double rcond2;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1103 SparseComplexMatrix InvL = fact.L().transpose().
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1104 tinverse(tmp_typ, info, rcond2, true, false);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1105 SparseComplexMatrix InvU = fact.U().
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1106 tinverse(tmp_typ, info, rcond2, true, false).transpose();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1107 ret = fact.Pc().transpose() * InvU * InvL * fact.Pr();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1108 }
5506 b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: 5451 diff changeset	1109 }
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: 5451 diff changeset	1110
b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: 5451 diff changeset	1111 return ret;
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1112 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1113
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1114 ComplexDET
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1115 SparseComplexMatrix::determinant (void) const
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1116 {
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	1117 octave_idx_type info;
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1118 double rcond;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1119 return determinant (info, rcond, 0);
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1120 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1121
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1122 ComplexDET
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	1123 SparseComplexMatrix::determinant (octave_idx_type& info) const
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1124 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1125 double rcond;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1126 return determinant (info, rcond, 0);
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1127 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1128
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1129 ComplexDET
5610 9761b7d24e9e [project @ 2006-02-09 09:12:02 by dbateman] dbateman parents: 5604 diff changeset	1130 SparseComplexMatrix::determinant (octave_idx_type& err, double& rcond, int) const
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1131 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1132 ComplexDET retval;
5203 dbeafbc0ff64 [project @ 2005-03-15 00:58:55 by jwe] jwe parents: 5164 diff changeset	1133 #ifdef HAVE_UMFPACK
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1134
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	1135 octave_idx_type nr = rows ();
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	1136 octave_idx_type nc = cols ();
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1137
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1138 if (nr == 0 \|\| nc == 0 \|\| nr != nc)
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1139 {
8335 64cf956a109c templatize & fix DET Jaroslav Hajek <highegg@gmail.com> parents: 8303 diff changeset	1140 retval = ComplexDET (1.0);
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1141 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1142 else
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1143 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1144 err = 0;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1145
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1146 // Setup the control parameters
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1147 Matrix Control (UMFPACK_CONTROL, 1);
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1148 double *control = Control.fortran_vec ();
5322 22994a5730f9 [project @ 2005-04-29 13:04:24 by dbateman] dbateman parents: 5307 diff changeset	1149 UMFPACK_ZNAME (defaults) (control);
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1150
5893 d73ffe42f2c8 [project @ 2006-07-16 07:48:19 by jwe] jwe parents: 5877 diff changeset	1151 double tmp = octave_sparse_params::get_key ("spumoni");
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1152 if (!xisnan (tmp))
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1153 Control (UMFPACK_PRL) = tmp;
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1154
5893 d73ffe42f2c8 [project @ 2006-07-16 07:48:19 by jwe] jwe parents: 5877 diff changeset	1155 tmp = octave_sparse_params::get_key ("piv_tol");
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1156 if (!xisnan (tmp))
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1157 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1158 Control (UMFPACK_SYM_PIVOT_TOLERANCE) = tmp;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1159 Control (UMFPACK_PIVOT_TOLERANCE) = tmp;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1160 }
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1161
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1162 // Set whether we are allowed to modify Q or not
5893 d73ffe42f2c8 [project @ 2006-07-16 07:48:19 by jwe] jwe parents: 5877 diff changeset	1163 tmp = octave_sparse_params::get_key ("autoamd");
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1164 if (!xisnan (tmp))
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1165 Control (UMFPACK_FIXQ) = tmp;
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1166
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1167 // Turn-off UMFPACK scaling for LU
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1168 Control (UMFPACK_SCALE) = UMFPACK_SCALE_NONE;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1169
5322 22994a5730f9 [project @ 2005-04-29 13:04:24 by dbateman] dbateman parents: 5307 diff changeset	1170 UMFPACK_ZNAME (report_control) (control);
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1171
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	1172 const octave_idx_type *Ap = cidx ();
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	1173 const octave_idx_type *Ai = ridx ();
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1174 const Complex *Ax = data ();
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1175
5322 22994a5730f9 [project @ 2005-04-29 13:04:24 by dbateman] dbateman parents: 5307 diff changeset	1176 UMFPACK_ZNAME (report_matrix) (nr, nc, Ap, Ai,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1177 reinterpret_cast<const double *> (Ax),
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1178 0, 1, control);
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1179
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1180 void *Symbolic;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1181 Matrix Info (1, UMFPACK_INFO);
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1182 double *info = Info.fortran_vec ();
5322 22994a5730f9 [project @ 2005-04-29 13:04:24 by dbateman] dbateman parents: 5307 diff changeset	1183 int status = UMFPACK_ZNAME (qsymbolic)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1184 (nr, nc, Ap, Ai, reinterpret_cast<const double *> (Ax), 0,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1185 0, &Symbolic, control, info);
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1186
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1187 if (status < 0)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1188 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1189 (*current_liboctave_error_handler)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1190 ("SparseComplexMatrix::determinant symbolic factorization failed");
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1191
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1192 UMFPACK_ZNAME (report_status) (control, status);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1193 UMFPACK_ZNAME (report_info) (control, info);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1194
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1195 UMFPACK_ZNAME (free_symbolic) (&Symbolic) ;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1196 }
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1197 else
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1198 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1199 UMFPACK_ZNAME (report_symbolic) (Symbolic, control);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1200
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1201 void *Numeric;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1202 status
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1203 = UMFPACK_ZNAME (numeric) (Ap, Ai,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1204 reinterpret_cast<const double *> (Ax),
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1205 0, Symbolic, &Numeric, control, info) ;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1206 UMFPACK_ZNAME (free_symbolic) (&Symbolic) ;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1207
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1208 rcond = Info (UMFPACK_RCOND);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1209
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1210 if (status < 0)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1211 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1212 (*current_liboctave_error_handler)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1213 ("SparseComplexMatrix::determinant numeric factorization failed");
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1214
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1215 UMFPACK_ZNAME (report_status) (control, status);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1216 UMFPACK_ZNAME (report_info) (control, info);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1217
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1218 UMFPACK_ZNAME (free_numeric) (&Numeric);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1219 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1220 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1221 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1222 UMFPACK_ZNAME (report_numeric) (Numeric, control);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1223
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1224 double c10[2], e10;
8335 64cf956a109c templatize & fix DET Jaroslav Hajek <highegg@gmail.com> parents: 8303 diff changeset	1225
64cf956a109c templatize & fix DET Jaroslav Hajek <highegg@gmail.com> parents: 8303 diff changeset	1226 status = UMFPACK_ZNAME (get_determinant) (c10, 0, &e10,
64cf956a109c templatize & fix DET Jaroslav Hajek <highegg@gmail.com> parents: 8303 diff changeset	1227 Numeric, info);
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1228
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1229 if (status < 0)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1230 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1231 (*current_liboctave_error_handler)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1232 ("SparseComplexMatrix::determinant error calculating determinant");
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1233
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1234 UMFPACK_ZNAME (report_status) (control, status);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1235 UMFPACK_ZNAME (report_info) (control, info);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1236 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1237 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1238 retval = ComplexDET (Complex (c10[0], c10[1]), e10, 10);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1239
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1240 UMFPACK_ZNAME (free_numeric) (&Numeric);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1241 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1242 }
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1243 }
5203 dbeafbc0ff64 [project @ 2005-03-15 00:58:55 by jwe] jwe parents: 5164 diff changeset	1244 #else
dbeafbc0ff64 [project @ 2005-03-15 00:58:55 by jwe] jwe parents: 5164 diff changeset	1245 (*current_liboctave_error_handler) ("UMFPACK not installed");
dbeafbc0ff64 [project @ 2005-03-15 00:58:55 by jwe] jwe parents: 5164 diff changeset	1246 #endif
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1247
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1248 return retval;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1249 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1250
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1251 ComplexMatrix
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	1252 SparseComplexMatrix::dsolve (MatrixType &mattype, const Matrix& b,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1253 octave_idx_type& err, double& rcond,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1254 solve_singularity_handler, bool calc_cond) const
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1255 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1256 ComplexMatrix retval;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1257
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	1258 octave_idx_type nr = rows ();
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	1259 octave_idx_type nc = cols ();
5630 512d0d11ae39 [project @ 2006-02-20 22:05:30 by dbateman] dbateman parents: 5610 diff changeset	1260 octave_idx_type nm = (nc < nr ? nc : nr);
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1261 err = 0;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1262
6924 be176b7e110a [project @ 2007-09-25 19:08:19 by dbateman] dbateman parents: 6840 diff changeset	1263 if (nr != b.rows ())
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1264 (*current_liboctave_error_handler)
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1265 ("matrix dimension mismatch solution of linear equations");
6924 be176b7e110a [project @ 2007-09-25 19:08:19 by dbateman] dbateman parents: 6840 diff changeset	1266 else if (nr == 0 \|\| nc == 0 \|\| b.cols () == 0)
be176b7e110a [project @ 2007-09-25 19:08:19 by dbateman] dbateman parents: 6840 diff changeset	1267 retval = ComplexMatrix (nc, b.cols (), Complex (0.0, 0.0));
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1268 else
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1269 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1270 // Print spparms("spumoni") info if requested
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1271 int typ = mattype.type ();
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1272 mattype.info ();
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1273
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	1274 if (typ == MatrixType::Diagonal \|\|
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1275 typ == MatrixType::Permuted_Diagonal)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1276 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1277 retval.resize (nc, b.cols(), Complex(0.,0.));
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1278 if (typ == MatrixType::Diagonal)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1279 for (octave_idx_type j = 0; j < b.cols(); j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1280 for (octave_idx_type i = 0; i < nm; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1281 retval(i,j) = b(i,j) / data (i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1282 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1283 for (octave_idx_type j = 0; j < b.cols(); j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1284 for (octave_idx_type k = 0; k < nc; k++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1285 for (octave_idx_type i = cidx(k); i < cidx(k+1); i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1286 retval(k,j) = b(ridx(i),j) / data (i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1287
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1288 if (calc_cond)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1289 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1290 double dmax = 0., dmin = octave_Inf;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1291 for (octave_idx_type i = 0; i < nm; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1292 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1293 double tmp = std::abs(data(i));
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1294 if (tmp > dmax)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1295 dmax = tmp;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1296 if (tmp < dmin)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1297 dmin = tmp;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1298 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1299 rcond = dmin / dmax;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1300 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1301 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1302 rcond = 1.0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1303 }
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1304 else
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1305 (*current_liboctave_error_handler) ("incorrect matrix type");
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1306 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1307
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1308 return retval;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1309 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1310
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1311 SparseComplexMatrix
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	1312 SparseComplexMatrix::dsolve (MatrixType &mattype, const SparseMatrix& b,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1313 octave_idx_type& err, double& rcond,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1314 solve_singularity_handler,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1315 bool calc_cond) const
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1316 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1317 SparseComplexMatrix retval;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1318
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	1319 octave_idx_type nr = rows ();
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	1320 octave_idx_type nc = cols ();
5630 512d0d11ae39 [project @ 2006-02-20 22:05:30 by dbateman] dbateman parents: 5610 diff changeset	1321 octave_idx_type nm = (nc < nr ? nc : nr);
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1322 err = 0;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1323
6924 be176b7e110a [project @ 2007-09-25 19:08:19 by dbateman] dbateman parents: 6840 diff changeset	1324 if (nr != b.rows ())
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1325 (*current_liboctave_error_handler)
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1326 ("matrix dimension mismatch solution of linear equations");
6924 be176b7e110a [project @ 2007-09-25 19:08:19 by dbateman] dbateman parents: 6840 diff changeset	1327 else if (nr == 0 \|\| nc == 0 \|\| b.cols () == 0)
be176b7e110a [project @ 2007-09-25 19:08:19 by dbateman] dbateman parents: 6840 diff changeset	1328 retval = SparseComplexMatrix (nc, b.cols ());
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1329 else
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1330 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1331 // Print spparms("spumoni") info if requested
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1332 int typ = mattype.type ();
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1333 mattype.info ();
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1334
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	1335 if (typ == MatrixType::Diagonal \|\|
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1336 typ == MatrixType::Permuted_Diagonal)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1337 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1338 octave_idx_type b_nc = b.cols ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1339 octave_idx_type b_nz = b.nnz ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1340 retval = SparseComplexMatrix (nc, b_nc, b_nz);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1341
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1342 retval.xcidx(0) = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1343 octave_idx_type ii = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1344 if (typ == MatrixType::Diagonal)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1345 for (octave_idx_type j = 0; j < b.cols(); j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1346 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1347 for (octave_idx_type i = b.cidx(j); i < b.cidx(j+1); i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1348 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1349 if (b.ridx(i) >= nm)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1350 break;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1351 retval.xridx (ii) = b.ridx(i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1352 retval.xdata (ii++) = b.data(i) / data (b.ridx (i));
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1353 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1354 retval.xcidx(j+1) = ii;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1355 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1356 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1357 for (octave_idx_type j = 0; j < b.cols(); j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1358 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1359 for (octave_idx_type l = 0; l < nc; l++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1360 for (octave_idx_type i = cidx(l); i < cidx(l+1); i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1361 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1362 bool found = false;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1363 octave_idx_type k;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1364 for (k = b.cidx(j); k < b.cidx(j+1); k++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1365 if (ridx(i) == b.ridx(k))
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1366 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1367 found = true;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1368 break;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1369 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1370 if (found)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1371 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1372 retval.xridx (ii) = l;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1373 retval.xdata (ii++) = b.data(k) / data (i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1374 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1375 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1376 retval.xcidx(j+1) = ii;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1377 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1378
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1379 if (calc_cond)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1380 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1381 double dmax = 0., dmin = octave_Inf;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1382 for (octave_idx_type i = 0; i < nm; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1383 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1384 double tmp = std::abs(data(i));
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1385 if (tmp > dmax)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1386 dmax = tmp;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1387 if (tmp < dmin)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1388 dmin = tmp;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1389 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1390 rcond = dmin / dmax;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1391 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1392 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1393 rcond = 1.0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1394 }
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1395 else
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1396 (*current_liboctave_error_handler) ("incorrect matrix type");
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1397 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1398
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1399 return retval;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1400 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1401
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1402 ComplexMatrix
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	1403 SparseComplexMatrix::dsolve (MatrixType &mattype, const ComplexMatrix& b,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1404 octave_idx_type& err, double& rcond,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1405 solve_singularity_handler,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1406 bool calc_cond) const
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1407 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1408 ComplexMatrix retval;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1409
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	1410 octave_idx_type nr = rows ();
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	1411 octave_idx_type nc = cols ();
5630 512d0d11ae39 [project @ 2006-02-20 22:05:30 by dbateman] dbateman parents: 5610 diff changeset	1412 octave_idx_type nm = (nc < nr ? nc : nr);
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1413 err = 0;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1414
6924 be176b7e110a [project @ 2007-09-25 19:08:19 by dbateman] dbateman parents: 6840 diff changeset	1415 if (nr != b.rows ())
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1416 (*current_liboctave_error_handler)
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1417 ("matrix dimension mismatch solution of linear equations");
6924 be176b7e110a [project @ 2007-09-25 19:08:19 by dbateman] dbateman parents: 6840 diff changeset	1418 else if (nr == 0 \|\| nc == 0 \|\| b.cols () == 0)
be176b7e110a [project @ 2007-09-25 19:08:19 by dbateman] dbateman parents: 6840 diff changeset	1419 retval = ComplexMatrix (nc, b.cols (), Complex (0.0, 0.0));
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1420 else
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1421 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1422 // Print spparms("spumoni") info if requested
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1423 int typ = mattype.type ();
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1424 mattype.info ();
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1425
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	1426 if (typ == MatrixType::Diagonal \|\|
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1427 typ == MatrixType::Permuted_Diagonal)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1428 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1429 retval.resize (nc, b.cols(), Complex(0.,0.));
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1430 if (typ == MatrixType::Diagonal)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1431 for (octave_idx_type j = 0; j < b.cols(); j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1432 for (octave_idx_type i = 0; i < nm; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1433 retval(i,j) = b(i,j) / data (i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1434 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1435 for (octave_idx_type j = 0; j < b.cols(); j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1436 for (octave_idx_type k = 0; k < nc; k++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1437 for (octave_idx_type i = cidx(k); i < cidx(k+1); i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1438 retval(k,j) = b(ridx(i),j) / data (i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1439
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1440 if (calc_cond)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1441 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1442 double dmax = 0., dmin = octave_Inf;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1443 for (octave_idx_type i = 0; i < nr; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1444 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1445 double tmp = std::abs(data(i));
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1446 if (tmp > dmax)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1447 dmax = tmp;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1448 if (tmp < dmin)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1449 dmin = tmp;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1450 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1451 rcond = dmin / dmax;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1452 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1453 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1454 rcond = 1.0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1455 }
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1456 else
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1457 (*current_liboctave_error_handler) ("incorrect matrix type");
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1458 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1459
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1460 return retval;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1461 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1462
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1463 SparseComplexMatrix
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	1464 SparseComplexMatrix::dsolve (MatrixType &mattype, const SparseComplexMatrix& b,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1465 octave_idx_type& err, double& rcond,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1466 solve_singularity_handler,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1467 bool calc_cond) const
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1468 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1469 SparseComplexMatrix retval;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1470
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	1471 octave_idx_type nr = rows ();
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	1472 octave_idx_type nc = cols ();
5630 512d0d11ae39 [project @ 2006-02-20 22:05:30 by dbateman] dbateman parents: 5610 diff changeset	1473 octave_idx_type nm = (nc < nr ? nc : nr);
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1474 err = 0;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1475
6924 be176b7e110a [project @ 2007-09-25 19:08:19 by dbateman] dbateman parents: 6840 diff changeset	1476 if (nr != b.rows ())
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1477 (*current_liboctave_error_handler)
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1478 ("matrix dimension mismatch solution of linear equations");
6924 be176b7e110a [project @ 2007-09-25 19:08:19 by dbateman] dbateman parents: 6840 diff changeset	1479 else if (nr == 0 \|\| nc == 0 \|\| b.cols () == 0)
be176b7e110a [project @ 2007-09-25 19:08:19 by dbateman] dbateman parents: 6840 diff changeset	1480 retval = SparseComplexMatrix (nc, b.cols ());
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1481 else
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1482 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1483 // Print spparms("spumoni") info if requested
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1484 int typ = mattype.type ();
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1485 mattype.info ();
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1486
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	1487 if (typ == MatrixType::Diagonal \|\|
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1488 typ == MatrixType::Permuted_Diagonal)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1489 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1490 octave_idx_type b_nc = b.cols ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1491 octave_idx_type b_nz = b.nnz ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1492 retval = SparseComplexMatrix (nc, b_nc, b_nz);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1493
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1494 retval.xcidx(0) = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1495 octave_idx_type ii = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1496 if (typ == MatrixType::Diagonal)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1497 for (octave_idx_type j = 0; j < b.cols(); j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1498 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1499 for (octave_idx_type i = b.cidx(j); i < b.cidx(j+1); i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1500 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1501 if (b.ridx(i) >= nm)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1502 break;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1503 retval.xridx (ii) = b.ridx(i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1504 retval.xdata (ii++) = b.data(i) / data (b.ridx (i));
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1505 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1506 retval.xcidx(j+1) = ii;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1507 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1508 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1509 for (octave_idx_type j = 0; j < b.cols(); j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1510 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1511 for (octave_idx_type l = 0; l < nc; l++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1512 for (octave_idx_type i = cidx(l); i < cidx(l+1); i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1513 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1514 bool found = false;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1515 octave_idx_type k;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1516 for (k = b.cidx(j); k < b.cidx(j+1); k++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1517 if (ridx(i) == b.ridx(k))
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1518 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1519 found = true;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1520 break;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1521 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1522 if (found)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1523 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1524 retval.xridx (ii) = l;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1525 retval.xdata (ii++) = b.data(k) / data (i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1526 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1527 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1528 retval.xcidx(j+1) = ii;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1529 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1530
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1531 if (calc_cond)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1532 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1533 double dmax = 0., dmin = octave_Inf;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1534 for (octave_idx_type i = 0; i < nm; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1535 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1536 double tmp = std::abs(data(i));
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1537 if (tmp > dmax)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1538 dmax = tmp;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1539 if (tmp < dmin)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1540 dmin = tmp;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1541 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1542 rcond = dmin / dmax;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1543 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1544 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1545 rcond = 1.0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1546 }
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1547 else
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1548 (*current_liboctave_error_handler) ("incorrect matrix type");
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1549 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1550
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1551 return retval;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1552 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1553
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1554 ComplexMatrix
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	1555 SparseComplexMatrix::utsolve (MatrixType &mattype, const Matrix& b,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1556 octave_idx_type& err, double& rcond,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1557 solve_singularity_handler sing_handler,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1558 bool calc_cond) const
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1559 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1560 ComplexMatrix retval;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1561
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	1562 octave_idx_type nr = rows ();
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	1563 octave_idx_type nc = cols ();
5630 512d0d11ae39 [project @ 2006-02-20 22:05:30 by dbateman] dbateman parents: 5610 diff changeset	1564 octave_idx_type nm = (nc > nr ? nc : nr);
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1565 err = 0;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1566
6924 be176b7e110a [project @ 2007-09-25 19:08:19 by dbateman] dbateman parents: 6840 diff changeset	1567 if (nr != b.rows ())
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1568 (*current_liboctave_error_handler)
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1569 ("matrix dimension mismatch solution of linear equations");
6924 be176b7e110a [project @ 2007-09-25 19:08:19 by dbateman] dbateman parents: 6840 diff changeset	1570 else if (nr == 0 \|\| nc == 0 \|\| b.cols () == 0)
be176b7e110a [project @ 2007-09-25 19:08:19 by dbateman] dbateman parents: 6840 diff changeset	1571 retval = ComplexMatrix (nc, b.cols (), Complex (0.0, 0.0));
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1572 else
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1573 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1574 // Print spparms("spumoni") info if requested
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1575 int typ = mattype.type ();
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1576 mattype.info ();
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1577
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	1578 if (typ == MatrixType::Permuted_Upper \|\|
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1579 typ == MatrixType::Upper)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1580 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1581 double anorm = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1582 double ainvnorm = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1583 octave_idx_type b_nc = b.cols ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1584 rcond = 1.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1585
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1586 if (calc_cond)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1587 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1588 // Calculate the 1-norm of matrix for rcond calculation
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1589 for (octave_idx_type j = 0; j < nc; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1590 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1591 double atmp = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1592 for (octave_idx_type i = cidx(j); i < cidx(j+1); i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1593 atmp += std::abs(data(i));
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1594 if (atmp > anorm)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1595 anorm = atmp;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1596 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1597 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1598
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1599 if (typ == MatrixType::Permuted_Upper)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1600 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1601 retval.resize (nc, b_nc);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1602 octave_idx_type *perm = mattype.triangular_perm ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1603 OCTAVE_LOCAL_BUFFER (Complex, work, nm);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1604
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1605 for (octave_idx_type j = 0; j < b_nc; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1606 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1607 for (octave_idx_type i = 0; i < nr; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1608 work[i] = b(i,j);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1609 for (octave_idx_type i = nr; i < nc; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1610 work[i] = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1611
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1612 for (octave_idx_type k = nc-1; k >= 0; k--)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1613 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1614 octave_idx_type kidx = perm[k];
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1615
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1616 if (work[k] != 0.)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1617 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1618 if (ridx(cidx(kidx+1)-1) != k \|\|
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1619 data(cidx(kidx+1)-1) == 0.)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1620 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1621 err = -2;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1622 goto triangular_error;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1623 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1624
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1625 Complex tmp = work[k] / data(cidx(kidx+1)-1);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1626 work[k] = tmp;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1627 for (octave_idx_type i = cidx(kidx);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1628 i < cidx(kidx+1)-1; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1629 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1630 octave_idx_type iidx = ridx(i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1631 work[iidx] = work[iidx] - tmp * data(i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1632 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1633 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1634 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1635
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1636 for (octave_idx_type i = 0; i < nc; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1637 retval (perm[i], j) = work[i];
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1638 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1639
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1640 if (calc_cond)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1641 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1642 // Calculation of 1-norm of inv(*this)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1643 for (octave_idx_type i = 0; i < nm; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1644 work[i] = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1645
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1646 for (octave_idx_type j = 0; j < nr; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1647 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1648 work[j] = 1.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1649
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1650 for (octave_idx_type k = j; k >= 0; k--)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1651 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1652 octave_idx_type iidx = perm[k];
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1653
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1654 if (work[k] != 0.)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1655 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1656 Complex tmp = work[k] / data(cidx(iidx+1)-1);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1657 work[k] = tmp;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1658 for (octave_idx_type i = cidx(iidx);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1659 i < cidx(iidx+1)-1; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1660 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1661 octave_idx_type idx2 = ridx(i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1662 work[idx2] = work[idx2] - tmp * data(i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1663 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1664 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1665 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1666 double atmp = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1667 for (octave_idx_type i = 0; i < j+1; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1668 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1669 atmp += std::abs(work[i]);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1670 work[i] = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1671 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1672 if (atmp > ainvnorm)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1673 ainvnorm = atmp;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1674 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1675 rcond = 1. / ainvnorm / anorm;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1676 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1677 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1678 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1679 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1680 OCTAVE_LOCAL_BUFFER (Complex, work, nm);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1681 retval.resize (nc, b_nc);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1682
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1683 for (octave_idx_type j = 0; j < b_nc; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1684 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1685 for (octave_idx_type i = 0; i < nr; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1686 work[i] = b(i,j);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1687 for (octave_idx_type i = nr; i < nc; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1688 work[i] = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1689
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1690 for (octave_idx_type k = nc-1; k >= 0; k--)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1691 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1692 if (work[k] != 0.)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1693 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1694 if (ridx(cidx(k+1)-1) != k \|\|
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1695 data(cidx(k+1)-1) == 0.)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1696 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1697 err = -2;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1698 goto triangular_error;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1699 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1700
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1701 Complex tmp = work[k] / data(cidx(k+1)-1);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1702 work[k] = tmp;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1703 for (octave_idx_type i = cidx(k); i < cidx(k+1)-1; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1704 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1705 octave_idx_type iidx = ridx(i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1706 work[iidx] = work[iidx] - tmp * data(i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1707 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1708 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1709 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1710
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1711 for (octave_idx_type i = 0; i < nc; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1712 retval.xelem (i, j) = work[i];
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1713 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1714
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1715 if (calc_cond)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1716 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1717 // Calculation of 1-norm of inv(*this)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1718 for (octave_idx_type i = 0; i < nm; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1719 work[i] = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1720
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1721 for (octave_idx_type j = 0; j < nr; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1722 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1723 work[j] = 1.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1724
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1725 for (octave_idx_type k = j; k >= 0; k--)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1726 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1727 if (work[k] != 0.)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1728 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1729 Complex tmp = work[k] / data(cidx(k+1)-1);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1730 work[k] = tmp;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1731 for (octave_idx_type i = cidx(k);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1732 i < cidx(k+1)-1; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1733 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1734 octave_idx_type iidx = ridx(i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1735 work[iidx] = work[iidx] - tmp * data(i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1736 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1737 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1738 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1739 double atmp = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1740 for (octave_idx_type i = 0; i < j+1; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1741 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1742 atmp += std::abs(work[i]);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1743 work[i] = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1744 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1745 if (atmp > ainvnorm)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1746 ainvnorm = atmp;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1747 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1748 rcond = 1. / ainvnorm / anorm;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1749 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1750 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1751
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1752 triangular_error:
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1753 if (err != 0)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1754 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1755 if (sing_handler)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1756 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1757 sing_handler (rcond);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1758 mattype.mark_as_rectangular ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1759 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1760 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1761 (*current_liboctave_error_handler)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1762 ("SparseComplexMatrix::solve matrix singular to machine precision, rcond = %g",
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1763 rcond);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1764 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1765
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1766 volatile double rcond_plus_one = rcond + 1.0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1767
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1768 if (rcond_plus_one == 1.0 \|\| xisnan (rcond))
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1769 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1770 err = -2;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1771
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1772 if (sing_handler)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1773 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1774 sing_handler (rcond);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1775 mattype.mark_as_rectangular ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1776 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1777 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1778 (*current_liboctave_error_handler)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1779 ("matrix singular to machine precision, rcond = %g",
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1780 rcond);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1781 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1782 }
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1783 else
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1784 (*current_liboctave_error_handler) ("incorrect matrix type");
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1785 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1786
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1787 return retval;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1788 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1789
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1790 SparseComplexMatrix
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	1791 SparseComplexMatrix::utsolve (MatrixType &mattype, const SparseMatrix& b,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1792 octave_idx_type& err, double& rcond,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1793 solve_singularity_handler sing_handler,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1794 bool calc_cond) const
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1795 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1796 SparseComplexMatrix retval;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1797
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	1798 octave_idx_type nr = rows ();
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	1799 octave_idx_type nc = cols ();
5630 512d0d11ae39 [project @ 2006-02-20 22:05:30 by dbateman] dbateman parents: 5610 diff changeset	1800 octave_idx_type nm = (nc > nr ? nc : nr);
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1801 err = 0;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1802
6924 be176b7e110a [project @ 2007-09-25 19:08:19 by dbateman] dbateman parents: 6840 diff changeset	1803 if (nr != b.rows ())
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1804 (*current_liboctave_error_handler)
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1805 ("matrix dimension mismatch solution of linear equations");
6924 be176b7e110a [project @ 2007-09-25 19:08:19 by dbateman] dbateman parents: 6840 diff changeset	1806 else if (nr == 0 \|\| nc == 0 \|\| b.cols () == 0)
be176b7e110a [project @ 2007-09-25 19:08:19 by dbateman] dbateman parents: 6840 diff changeset	1807 retval = SparseComplexMatrix (nc, b.cols ());
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1808 else
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1809 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1810 // Print spparms("spumoni") info if requested
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1811 int typ = mattype.type ();
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1812 mattype.info ();
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	1813
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	1814 if (typ == MatrixType::Permuted_Upper \|\|
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1815 typ == MatrixType::Upper)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1816 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1817 double anorm = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1818 double ainvnorm = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1819 rcond = 1.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1820
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1821 if (calc_cond)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1822 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1823 // Calculate the 1-norm of matrix for rcond calculation
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1824 for (octave_idx_type j = 0; j < nc; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1825 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1826 double atmp = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1827 for (octave_idx_type i = cidx(j); i < cidx(j+1); i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1828 atmp += std::abs(data(i));
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1829 if (atmp > anorm)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1830 anorm = atmp;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1831 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1832 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1833
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1834 octave_idx_type b_nc = b.cols ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1835 octave_idx_type b_nz = b.nnz ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1836 retval = SparseComplexMatrix (nc, b_nc, b_nz);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1837 retval.xcidx(0) = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1838 octave_idx_type ii = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1839 octave_idx_type x_nz = b_nz;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1840
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1841 if (typ == MatrixType::Permuted_Upper)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1842 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1843 octave_idx_type *perm = mattype.triangular_perm ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1844 OCTAVE_LOCAL_BUFFER (Complex, work, nm);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1845
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1846 OCTAVE_LOCAL_BUFFER (octave_idx_type, rperm, nc);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1847 for (octave_idx_type i = 0; i < nc; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1848 rperm[perm[i]] = i;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1849
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1850 for (octave_idx_type j = 0; j < b_nc; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1851 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1852 for (octave_idx_type i = 0; i < nm; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1853 work[i] = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1854 for (octave_idx_type i = b.cidx(j); i < b.cidx(j+1); i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1855 work[b.ridx(i)] = b.data(i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1856
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1857 for (octave_idx_type k = nc-1; k >= 0; k--)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1858 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1859 octave_idx_type kidx = perm[k];
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1860
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1861 if (work[k] != 0.)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1862 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1863 if (ridx(cidx(kidx+1)-1) != k \|\|
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1864 data(cidx(kidx+1)-1) == 0.)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1865 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1866 err = -2;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1867 goto triangular_error;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1868 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1869
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1870 Complex tmp = work[k] / data(cidx(kidx+1)-1);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1871 work[k] = tmp;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1872 for (octave_idx_type i = cidx(kidx);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1873 i < cidx(kidx+1)-1; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1874 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1875 octave_idx_type iidx = ridx(i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1876 work[iidx] = work[iidx] - tmp * data(i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1877 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1878 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1879 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1880
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1881 // Count non-zeros in work vector and adjust space in
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1882 // retval if needed
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1883 octave_idx_type new_nnz = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1884 for (octave_idx_type i = 0; i < nc; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1885 if (work[i] != 0.)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1886 new_nnz++;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1887
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1888 if (ii + new_nnz > x_nz)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1889 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1890 // Resize the sparse matrix
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1891 octave_idx_type sz = new_nnz * (b_nc - j) + x_nz;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1892 retval.change_capacity (sz);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1893 x_nz = sz;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1894 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1895
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1896 for (octave_idx_type i = 0; i < nc; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1897 if (work[rperm[i]] != 0.)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1898 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1899 retval.xridx(ii) = i;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1900 retval.xdata(ii++) = work[rperm[i]];
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1901 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1902 retval.xcidx(j+1) = ii;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1903 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1904
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1905 retval.maybe_compress ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1906
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1907 if (calc_cond)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1908 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1909 // Calculation of 1-norm of inv(*this)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1910 for (octave_idx_type i = 0; i < nm; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1911 work[i] = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1912
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1913 for (octave_idx_type j = 0; j < nr; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1914 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1915 work[j] = 1.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1916
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1917 for (octave_idx_type k = j; k >= 0; k--)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1918 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1919 octave_idx_type iidx = perm[k];
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1920
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1921 if (work[k] != 0.)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1922 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1923 Complex tmp = work[k] / data(cidx(iidx+1)-1);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1924 work[k] = tmp;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1925 for (octave_idx_type i = cidx(iidx);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1926 i < cidx(iidx+1)-1; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1927 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1928 octave_idx_type idx2 = ridx(i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1929 work[idx2] = work[idx2] - tmp * data(i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1930 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1931 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1932 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1933 double atmp = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1934 for (octave_idx_type i = 0; i < j+1; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1935 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1936 atmp += std::abs(work[i]);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1937 work[i] = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1938 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1939 if (atmp > ainvnorm)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1940 ainvnorm = atmp;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1941 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1942 rcond = 1. / ainvnorm / anorm;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1943 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1944 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1945 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1946 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1947 OCTAVE_LOCAL_BUFFER (Complex, work, nm);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1948
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1949 for (octave_idx_type j = 0; j < b_nc; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1950 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1951 for (octave_idx_type i = 0; i < nm; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1952 work[i] = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1953 for (octave_idx_type i = b.cidx(j); i < b.cidx(j+1); i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1954 work[b.ridx(i)] = b.data(i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1955
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1956 for (octave_idx_type k = nc-1; k >= 0; k--)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1957 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1958 if (work[k] != 0.)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1959 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1960 if (ridx(cidx(k+1)-1) != k \|\|
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1961 data(cidx(k+1)-1) == 0.)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1962 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1963 err = -2;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1964 goto triangular_error;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1965 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1966
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1967 Complex tmp = work[k] / data(cidx(k+1)-1);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1968 work[k] = tmp;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1969 for (octave_idx_type i = cidx(k); i < cidx(k+1)-1; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1970 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1971 octave_idx_type iidx = ridx(i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1972 work[iidx] = work[iidx] - tmp * data(i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1973 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1974 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1975 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1976
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1977 // Count non-zeros in work vector and adjust space in
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1978 // retval if needed
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1979 octave_idx_type new_nnz = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1980 for (octave_idx_type i = 0; i < nc; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1981 if (work[i] != 0.)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1982 new_nnz++;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1983
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1984 if (ii + new_nnz > x_nz)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1985 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1986 // Resize the sparse matrix
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1987 octave_idx_type sz = new_nnz * (b_nc - j) + x_nz;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1988 retval.change_capacity (sz);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1989 x_nz = sz;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1990 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1991
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1992 for (octave_idx_type i = 0; i < nc; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1993 if (work[i] != 0.)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1994 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1995 retval.xridx(ii) = i;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1996 retval.xdata(ii++) = work[i];
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1997 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1998 retval.xcidx(j+1) = ii;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	1999 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2000
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2001 retval.maybe_compress ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2002
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2003 if (calc_cond)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2004 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2005 // Calculation of 1-norm of inv(*this)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2006 for (octave_idx_type i = 0; i < nm; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2007 work[i] = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2008
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2009 for (octave_idx_type j = 0; j < nr; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2010 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2011 work[j] = 1.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2012
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2013 for (octave_idx_type k = j; k >= 0; k--)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2014 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2015 if (work[k] != 0.)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2016 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2017 Complex tmp = work[k] / data(cidx(k+1)-1);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2018 work[k] = tmp;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2019 for (octave_idx_type i = cidx(k);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2020 i < cidx(k+1)-1; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2021 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2022 octave_idx_type iidx = ridx(i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2023 work[iidx] = work[iidx] - tmp * data(i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2024 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2025 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2026 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2027 double atmp = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2028 for (octave_idx_type i = 0; i < j+1; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2029 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2030 atmp += std::abs(work[i]);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2031 work[i] = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2032 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2033 if (atmp > ainvnorm)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2034 ainvnorm = atmp;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2035 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2036 rcond = 1. / ainvnorm / anorm;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2037 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2038 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2039
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2040 triangular_error:
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2041 if (err != 0)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2042 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2043 if (sing_handler)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2044 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2045 sing_handler (rcond);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2046 mattype.mark_as_rectangular ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2047 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2048 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2049 (*current_liboctave_error_handler)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2050 ("SparseComplexMatrix::solve matrix singular to machine precision, rcond = %g",
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2051 rcond);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2052 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2053
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2054 volatile double rcond_plus_one = rcond + 1.0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2055
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2056 if (rcond_plus_one == 1.0 \|\| xisnan (rcond))
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2057 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2058 err = -2;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2059
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2060 if (sing_handler)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2061 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2062 sing_handler (rcond);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2063 mattype.mark_as_rectangular ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2064 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2065 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2066 (*current_liboctave_error_handler)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2067 ("matrix singular to machine precision, rcond = %g",
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2068 rcond);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2069 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2070 }
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	2071 else
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2072 (*current_liboctave_error_handler) ("incorrect matrix type");
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	2073 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	2074 return retval;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	2075 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	2076
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	2077 ComplexMatrix
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	2078 SparseComplexMatrix::utsolve (MatrixType &mattype, const ComplexMatrix& b,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2079 octave_idx_type& err, double& rcond,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2080 solve_singularity_handler sing_handler,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2081 bool calc_cond) const
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	2082 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	2083 ComplexMatrix retval;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	2084
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	2085 octave_idx_type nr = rows ();
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	2086 octave_idx_type nc = cols ();
5630 512d0d11ae39 [project @ 2006-02-20 22:05:30 by dbateman] dbateman parents: 5610 diff changeset	2087 octave_idx_type nm = (nc > nr ? nc : nr);
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	2088 err = 0;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	2089
6924 be176b7e110a [project @ 2007-09-25 19:08:19 by dbateman] dbateman parents: 6840 diff changeset	2090 if (nr != b.rows ())
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	2091 (*current_liboctave_error_handler)
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	2092 ("matrix dimension mismatch solution of linear equations");
6924 be176b7e110a [project @ 2007-09-25 19:08:19 by dbateman] dbateman parents: 6840 diff changeset	2093 else if (nr == 0 \|\| nc == 0 \|\| b.cols () == 0)
be176b7e110a [project @ 2007-09-25 19:08:19 by dbateman] dbateman parents: 6840 diff changeset	2094 retval = ComplexMatrix (nc, b.cols (), Complex (0.0, 0.0));
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	2095 else
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	2096 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	2097 // Print spparms("spumoni") info if requested
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	2098 int typ = mattype.type ();
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	2099 mattype.info ();
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	2100
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	2101 if (typ == MatrixType::Permuted_Upper \|\|
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2102 typ == MatrixType::Upper)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2103 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2104 double anorm = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2105 double ainvnorm = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2106 octave_idx_type b_nc = b.cols ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2107 rcond = 1.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2108
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2109 if (calc_cond)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2110 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2111 // Calculate the 1-norm of matrix for rcond calculation
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2112 for (octave_idx_type j = 0; j < nc; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2113 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2114 double atmp = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2115 for (octave_idx_type i = cidx(j); i < cidx(j+1); i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2116 atmp += std::abs(data(i));
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2117 if (atmp > anorm)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2118 anorm = atmp;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2119 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2120 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2121
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2122 if (typ == MatrixType::Permuted_Upper)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2123 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2124 retval.resize (nc, b_nc);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2125 octave_idx_type *perm = mattype.triangular_perm ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2126 OCTAVE_LOCAL_BUFFER (Complex, work, nm);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2127
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2128 for (octave_idx_type j = 0; j < b_nc; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2129 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2130 for (octave_idx_type i = 0; i < nr; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2131 work[i] = b(i,j);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2132 for (octave_idx_type i = nr; i < nc; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2133 work[i] = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2134
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2135 for (octave_idx_type k = nc-1; k >= 0; k--)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2136 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2137 octave_idx_type kidx = perm[k];
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2138
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2139 if (work[k] != 0.)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2140 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2141 if (ridx(cidx(kidx+1)-1) != k \|\|
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2142 data(cidx(kidx+1)-1) == 0.)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2143 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2144 err = -2;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2145 goto triangular_error;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2146 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2147
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2148 Complex tmp = work[k] / data(cidx(kidx+1)-1);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2149 work[k] = tmp;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2150 for (octave_idx_type i = cidx(kidx);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2151 i < cidx(kidx+1)-1; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2152 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2153 octave_idx_type iidx = ridx(i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2154 work[iidx] = work[iidx] - tmp * data(i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2155 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2156 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2157 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2158
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2159 for (octave_idx_type i = 0; i < nc; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2160 retval (perm[i], j) = work[i];
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2161 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2162
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2163 if (calc_cond)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2164 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2165 // Calculation of 1-norm of inv(*this)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2166 for (octave_idx_type i = 0; i < nm; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2167 work[i] = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2168
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2169 for (octave_idx_type j = 0; j < nr; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2170 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2171 work[j] = 1.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2172
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2173 for (octave_idx_type k = j; k >= 0; k--)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2174 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2175 octave_idx_type iidx = perm[k];
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2176
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2177 if (work[k] != 0.)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2178 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2179 Complex tmp = work[k] / data(cidx(iidx+1)-1);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2180 work[k] = tmp;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2181 for (octave_idx_type i = cidx(iidx);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2182 i < cidx(iidx+1)-1; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2183 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2184 octave_idx_type idx2 = ridx(i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2185 work[idx2] = work[idx2] - tmp * data(i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2186 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2187 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2188 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2189 double atmp = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2190 for (octave_idx_type i = 0; i < j+1; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2191 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2192 atmp += std::abs(work[i]);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2193 work[i] = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2194 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2195 if (atmp > ainvnorm)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2196 ainvnorm = atmp;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2197 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2198 rcond = 1. / ainvnorm / anorm;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2199 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2200 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2201 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2202 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2203 OCTAVE_LOCAL_BUFFER (Complex, work, nm);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2204 retval.resize (nc, b_nc);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2205
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2206 for (octave_idx_type j = 0; j < b_nc; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2207 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2208 for (octave_idx_type i = 0; i < nr; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2209 work[i] = b(i,j);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2210 for (octave_idx_type i = nr; i < nc; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2211 work[i] = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2212
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2213 for (octave_idx_type k = nc-1; k >= 0; k--)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2214 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2215 if (work[k] != 0.)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2216 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2217 if (ridx(cidx(k+1)-1) != k \|\|
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2218 data(cidx(k+1)-1) == 0.)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2219 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2220 err = -2;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2221 goto triangular_error;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2222 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2223
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2224 Complex tmp = work[k] / data(cidx(k+1)-1);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2225 work[k] = tmp;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2226 for (octave_idx_type i = cidx(k); i < cidx(k+1)-1; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2227 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2228 octave_idx_type iidx = ridx(i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2229 work[iidx] = work[iidx] - tmp * data(i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2230 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2231 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2232 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2233
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2234 for (octave_idx_type i = 0; i < nc; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2235 retval.xelem (i, j) = work[i];
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2236 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2237
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2238 if (calc_cond)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2239 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2240 // Calculation of 1-norm of inv(*this)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2241 for (octave_idx_type i = 0; i < nm; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2242 work[i] = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2243
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2244 for (octave_idx_type j = 0; j < nr; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2245 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2246 work[j] = 1.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2247
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2248 for (octave_idx_type k = j; k >= 0; k--)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2249 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2250 if (work[k] != 0.)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2251 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2252 Complex tmp = work[k] / data(cidx(k+1)-1);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2253 work[k] = tmp;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2254 for (octave_idx_type i = cidx(k);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2255 i < cidx(k+1)-1; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2256 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2257 octave_idx_type iidx = ridx(i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2258 work[iidx] = work[iidx] - tmp * data(i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2259 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2260 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2261 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2262 double atmp = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2263 for (octave_idx_type i = 0; i < j+1; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2264 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2265 atmp += std::abs(work[i]);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2266 work[i] = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2267 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2268 if (atmp > ainvnorm)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2269 ainvnorm = atmp;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2270 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2271 rcond = 1. / ainvnorm / anorm;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2272 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2273 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2274
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2275 triangular_error:
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2276 if (err != 0)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2277 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2278 if (sing_handler)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2279 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2280 sing_handler (rcond);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2281 mattype.mark_as_rectangular ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2282 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2283 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2284 (*current_liboctave_error_handler)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2285 ("SparseComplexMatrix::solve matrix singular to machine precision, rcond = %g",
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2286 rcond);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2287 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2288
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2289 volatile double rcond_plus_one = rcond + 1.0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2290
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2291 if (rcond_plus_one == 1.0 \|\| xisnan (rcond))
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2292 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2293 err = -2;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2294
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2295 if (sing_handler)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2296 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2297 sing_handler (rcond);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2298 mattype.mark_as_rectangular ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2299 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2300 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2301 (*current_liboctave_error_handler)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2302 ("matrix singular to machine precision, rcond = %g",
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2303 rcond);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2304 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2305 }
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	2306 else
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2307 (*current_liboctave_error_handler) ("incorrect matrix type");
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	2308 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	2309
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	2310 return retval;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	2311 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	2312
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	2313 SparseComplexMatrix
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	2314 SparseComplexMatrix::utsolve (MatrixType &mattype, const SparseComplexMatrix& b,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2315 octave_idx_type& err, double& rcond,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2316 solve_singularity_handler sing_handler,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2317 bool calc_cond) const
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	2318 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	2319 SparseComplexMatrix retval;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	2320
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	2321 octave_idx_type nr = rows ();
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	2322 octave_idx_type nc = cols ();
5630 512d0d11ae39 [project @ 2006-02-20 22:05:30 by dbateman] dbateman parents: 5610 diff changeset	2323 octave_idx_type nm = (nc > nr ? nc : nr);
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	2324 err = 0;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	2325
6924 be176b7e110a [project @ 2007-09-25 19:08:19 by dbateman] dbateman parents: 6840 diff changeset	2326 if (nr != b.rows ())
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	2327 (*current_liboctave_error_handler)
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	2328 ("matrix dimension mismatch solution of linear equations");
6924 be176b7e110a [project @ 2007-09-25 19:08:19 by dbateman] dbateman parents: 6840 diff changeset	2329 else if (nr == 0 \|\| nc == 0 \|\| b.cols () == 0)
be176b7e110a [project @ 2007-09-25 19:08:19 by dbateman] dbateman parents: 6840 diff changeset	2330 retval = SparseComplexMatrix (nc, b.cols ());
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	2331 else
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	2332 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	2333 // Print spparms("spumoni") info if requested
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	2334 int typ = mattype.type ();
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	2335 mattype.info ();
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	2336
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	2337 if (typ == MatrixType::Permuted_Upper \|\|
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2338 typ == MatrixType::Upper)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2339 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2340 double anorm = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2341 double ainvnorm = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2342 rcond = 1.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2343
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2344 if (calc_cond)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2345 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2346 // Calculate the 1-norm of matrix for rcond calculation
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2347 for (octave_idx_type j = 0; j < nc; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2348 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2349 double atmp = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2350 for (octave_idx_type i = cidx(j); i < cidx(j+1); i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2351 atmp += std::abs(data(i));
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2352 if (atmp > anorm)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2353 anorm = atmp;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2354 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2355 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2356
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2357 octave_idx_type b_nc = b.cols ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2358 octave_idx_type b_nz = b.nnz ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2359 retval = SparseComplexMatrix (nc, b_nc, b_nz);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2360 retval.xcidx(0) = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2361 octave_idx_type ii = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2362 octave_idx_type x_nz = b_nz;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2363
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2364 if (typ == MatrixType::Permuted_Upper)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2365 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2366 octave_idx_type *perm = mattype.triangular_perm ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2367 OCTAVE_LOCAL_BUFFER (Complex, work, nm);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2368
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2369 OCTAVE_LOCAL_BUFFER (octave_idx_type, rperm, nc);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2370 for (octave_idx_type i = 0; i < nc; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2371 rperm[perm[i]] = i;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2372
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2373 for (octave_idx_type j = 0; j < b_nc; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2374 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2375 for (octave_idx_type i = 0; i < nm; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2376 work[i] = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2377 for (octave_idx_type i = b.cidx(j); i < b.cidx(j+1); i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2378 work[b.ridx(i)] = b.data(i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2379
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2380 for (octave_idx_type k = nc-1; k >= 0; k--)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2381 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2382 octave_idx_type kidx = perm[k];
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2383
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2384 if (work[k] != 0.)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2385 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2386 if (ridx(cidx(kidx+1)-1) != k \|\|
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2387 data(cidx(kidx+1)-1) == 0.)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2388 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2389 err = -2;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2390 goto triangular_error;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2391 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2392
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2393 Complex tmp = work[k] / data(cidx(kidx+1)-1);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2394 work[k] = tmp;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2395 for (octave_idx_type i = cidx(kidx);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2396 i < cidx(kidx+1)-1; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2397 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2398 octave_idx_type iidx = ridx(i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2399 work[iidx] = work[iidx] - tmp * data(i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2400 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2401 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2402 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2403
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2404 // Count non-zeros in work vector and adjust space in
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2405 // retval if needed
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2406 octave_idx_type new_nnz = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2407 for (octave_idx_type i = 0; i < nc; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2408 if (work[i] != 0.)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2409 new_nnz++;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2410
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2411 if (ii + new_nnz > x_nz)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2412 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2413 // Resize the sparse matrix
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2414 octave_idx_type sz = new_nnz * (b_nc - j) + x_nz;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2415 retval.change_capacity (sz);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2416 x_nz = sz;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2417 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2418
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2419 for (octave_idx_type i = 0; i < nc; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2420 if (work[rperm[i]] != 0.)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2421 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2422 retval.xridx(ii) = i;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2423 retval.xdata(ii++) = work[rperm[i]];
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2424 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2425 retval.xcidx(j+1) = ii;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2426 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2427
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2428 retval.maybe_compress ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2429
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2430 if (calc_cond)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2431 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2432 // Calculation of 1-norm of inv(*this)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2433 for (octave_idx_type i = 0; i < nm; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2434 work[i] = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2435
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2436 for (octave_idx_type j = 0; j < nr; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2437 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2438 work[j] = 1.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2439
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2440 for (octave_idx_type k = j; k >= 0; k--)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2441 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2442 octave_idx_type iidx = perm[k];
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2443
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2444 if (work[k] != 0.)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2445 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2446 Complex tmp = work[k] / data(cidx(iidx+1)-1);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2447 work[k] = tmp;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2448 for (octave_idx_type i = cidx(iidx);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2449 i < cidx(iidx+1)-1; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2450 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2451 octave_idx_type idx2 = ridx(i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2452 work[idx2] = work[idx2] - tmp * data(i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2453 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2454 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2455 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2456 double atmp = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2457 for (octave_idx_type i = 0; i < j+1; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2458 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2459 atmp += std::abs(work[i]);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2460 work[i] = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2461 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2462 if (atmp > ainvnorm)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2463 ainvnorm = atmp;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2464 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2465 rcond = 1. / ainvnorm / anorm;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2466 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2467 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2468 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2469 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2470 OCTAVE_LOCAL_BUFFER (Complex, work, nm);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2471
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2472 for (octave_idx_type j = 0; j < b_nc; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2473 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2474 for (octave_idx_type i = 0; i < nm; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2475 work[i] = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2476 for (octave_idx_type i = b.cidx(j); i < b.cidx(j+1); i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2477 work[b.ridx(i)] = b.data(i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2478
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2479 for (octave_idx_type k = nr-1; k >= 0; k--)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2480 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2481 if (work[k] != 0.)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2482 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2483 if (ridx(cidx(k+1)-1) != k \|\|
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2484 data(cidx(k+1)-1) == 0.)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2485 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2486 err = -2;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2487 goto triangular_error;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2488 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2489
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2490 Complex tmp = work[k] / data(cidx(k+1)-1);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2491 work[k] = tmp;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2492 for (octave_idx_type i = cidx(k); i < cidx(k+1)-1; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2493 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2494 octave_idx_type iidx = ridx(i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2495 work[iidx] = work[iidx] - tmp * data(i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2496 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2497 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2498 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2499
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2500 // Count non-zeros in work vector and adjust space in
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2501 // retval if needed
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2502 octave_idx_type new_nnz = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2503 for (octave_idx_type i = 0; i < nc; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2504 if (work[i] != 0.)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2505 new_nnz++;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2506
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2507 if (ii + new_nnz > x_nz)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2508 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2509 // Resize the sparse matrix
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2510 octave_idx_type sz = new_nnz * (b_nc - j) + x_nz;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2511 retval.change_capacity (sz);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2512 x_nz = sz;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2513 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2514
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2515 for (octave_idx_type i = 0; i < nc; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2516 if (work[i] != 0.)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2517 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2518 retval.xridx(ii) = i;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2519 retval.xdata(ii++) = work[i];
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2520 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2521 retval.xcidx(j+1) = ii;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2522 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2523
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2524 retval.maybe_compress ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2525
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2526 if (calc_cond)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2527 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2528 // Calculation of 1-norm of inv(*this)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2529 for (octave_idx_type i = 0; i < nm; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2530 work[i] = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2531
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2532 for (octave_idx_type j = 0; j < nr; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2533 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2534 work[j] = 1.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2535
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2536 for (octave_idx_type k = j; k >= 0; k--)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2537 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2538 if (work[k] != 0.)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2539 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2540 Complex tmp = work[k] / data(cidx(k+1)-1);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2541 work[k] = tmp;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2542 for (octave_idx_type i = cidx(k);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2543 i < cidx(k+1)-1; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2544 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2545 octave_idx_type iidx = ridx(i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2546 work[iidx] = work[iidx] - tmp * data(i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2547 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2548 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2549 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2550 double atmp = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2551 for (octave_idx_type i = 0; i < j+1; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2552 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2553 atmp += std::abs(work[i]);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2554 work[i] = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2555 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2556 if (atmp > ainvnorm)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2557 ainvnorm = atmp;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2558 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2559 rcond = 1. / ainvnorm / anorm;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2560 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2561 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2562
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2563 triangular_error:
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2564 if (err != 0)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2565 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2566 if (sing_handler)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2567 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2568 sing_handler (rcond);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2569 mattype.mark_as_rectangular ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2570 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2571 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2572 (*current_liboctave_error_handler)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2573 ("SparseComplexMatrix::solve matrix singular to machine precision, rcond = %g",
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2574 rcond);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2575 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2576
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2577 volatile double rcond_plus_one = rcond + 1.0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2578
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2579 if (rcond_plus_one == 1.0 \|\| xisnan (rcond))
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2580 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2581 err = -2;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2582
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2583 if (sing_handler)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2584 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2585 sing_handler (rcond);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2586 mattype.mark_as_rectangular ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2587 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2588 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2589 (*current_liboctave_error_handler)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2590 ("matrix singular to machine precision, rcond = %g",
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2591 rcond);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2592 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2593 }
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	2594 else
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2595 (*current_liboctave_error_handler) ("incorrect matrix type");
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	2596 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	2597
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	2598 return retval;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	2599 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	2600
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	2601 ComplexMatrix
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	2602 SparseComplexMatrix::ltsolve (MatrixType &mattype, const Matrix& b,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2603 octave_idx_type& err, double& rcond,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2604 solve_singularity_handler sing_handler,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2605 bool calc_cond) const
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	2606 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	2607 ComplexMatrix retval;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	2608
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	2609 octave_idx_type nr = rows ();
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	2610 octave_idx_type nc = cols ();
5630 512d0d11ae39 [project @ 2006-02-20 22:05:30 by dbateman] dbateman parents: 5610 diff changeset	2611 octave_idx_type nm = (nc > nr ? nc : nr);
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	2612 err = 0;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	2613
6924 be176b7e110a [project @ 2007-09-25 19:08:19 by dbateman] dbateman parents: 6840 diff changeset	2614 if (nr != b.rows ())
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	2615 (*current_liboctave_error_handler)
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	2616 ("matrix dimension mismatch solution of linear equations");
6924 be176b7e110a [project @ 2007-09-25 19:08:19 by dbateman] dbateman parents: 6840 diff changeset	2617 else if (nr == 0 \|\| nc == 0 \|\| b.cols () == 0)
be176b7e110a [project @ 2007-09-25 19:08:19 by dbateman] dbateman parents: 6840 diff changeset	2618 retval = ComplexMatrix (nc, b.cols (), Complex (0.0, 0.0));
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	2619 else
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	2620 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	2621 // Print spparms("spumoni") info if requested
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	2622 int typ = mattype.type ();
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	2623 mattype.info ();
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	2624
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	2625 if (typ == MatrixType::Permuted_Lower \|\|
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2626 typ == MatrixType::Lower)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2627 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2628 double anorm = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2629 double ainvnorm = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2630 octave_idx_type b_nc = b.cols ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2631 rcond = 1.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2632
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2633 if (calc_cond)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2634 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2635 // Calculate the 1-norm of matrix for rcond calculation
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2636 for (octave_idx_type j = 0; j < nc; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2637 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2638 double atmp = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2639 for (octave_idx_type i = cidx(j); i < cidx(j+1); i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2640 atmp += std::abs(data(i));
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2641 if (atmp > anorm)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2642 anorm = atmp;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2643 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2644 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2645
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2646 if (typ == MatrixType::Permuted_Lower)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2647 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2648 retval.resize (nc, b_nc);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2649 OCTAVE_LOCAL_BUFFER (Complex, work, nm);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2650 octave_idx_type *perm = mattype.triangular_perm ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2651
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2652 for (octave_idx_type j = 0; j < b_nc; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2653 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2654 for (octave_idx_type i = 0; i < nm; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2655 work[i] = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2656 for (octave_idx_type i = 0; i < nr; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2657 work[perm[i]] = b(i,j);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2658
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2659 for (octave_idx_type k = 0; k < nc; k++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2660 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2661 if (work[k] != 0.)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2662 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2663 octave_idx_type minr = nr;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2664 octave_idx_type mini = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2665
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2666 for (octave_idx_type i = cidx(k); i < cidx(k+1); i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2667 if (perm[ridx(i)] < minr)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2668 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2669 minr = perm[ridx(i)];
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2670 mini = i;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2671 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2672
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2673 if (minr != k \|\| data (mini) == 0.)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2674 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2675 err = -2;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2676 goto triangular_error;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2677 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2678
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2679 Complex tmp = work[k] / data(mini);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2680 work[k] = tmp;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2681 for (octave_idx_type i = cidx(k); i < cidx(k+1); i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2682 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2683 if (i == mini)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2684 continue;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2685
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2686 octave_idx_type iidx = perm[ridx(i)];
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2687 work[iidx] = work[iidx] - tmp * data(i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2688 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2689 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2690 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2691
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2692 for (octave_idx_type i = 0; i < nc; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2693 retval (i, j) = work[i];
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2694 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2695
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2696 if (calc_cond)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2697 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2698 // Calculation of 1-norm of inv(*this)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2699 for (octave_idx_type i = 0; i < nm; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2700 work[i] = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2701
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2702 for (octave_idx_type j = 0; j < nr; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2703 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2704 work[j] = 1.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2705
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2706 for (octave_idx_type k = 0; k < nc; k++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2707 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2708 if (work[k] != 0.)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2709 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2710 octave_idx_type minr = nr;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2711 octave_idx_type mini = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2712
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2713 for (octave_idx_type i = cidx(k);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2714 i < cidx(k+1); i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2715 if (perm[ridx(i)] < minr)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2716 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2717 minr = perm[ridx(i)];
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2718 mini = i;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2719 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2720
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2721 Complex tmp = work[k] / data(mini);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2722 work[k] = tmp;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2723 for (octave_idx_type i = cidx(k);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2724 i < cidx(k+1); i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2725 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2726 if (i == mini)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2727 continue;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2728
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2729 octave_idx_type iidx = perm[ridx(i)];
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2730 work[iidx] = work[iidx] - tmp * data(i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2731 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2732 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2733 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2734
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2735 double atmp = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2736 for (octave_idx_type i = j; i < nc; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2737 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2738 atmp += std::abs(work[i]);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2739 work[i] = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2740 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2741 if (atmp > ainvnorm)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2742 ainvnorm = atmp;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2743 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2744 rcond = 1. / ainvnorm / anorm;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2745 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2746 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2747 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2748 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2749 OCTAVE_LOCAL_BUFFER (Complex, work, nm);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2750 retval.resize (nc, b_nc, 0.);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2751
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2752 for (octave_idx_type j = 0; j < b_nc; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2753 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2754 for (octave_idx_type i = 0; i < nr; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2755 work[i] = b(i,j);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2756 for (octave_idx_type i = nr; i < nc; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2757 work[i] = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2758 for (octave_idx_type k = 0; k < nc; k++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2759 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2760 if (work[k] != 0.)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2761 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2762 if (ridx(cidx(k)) != k \|\|
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2763 data(cidx(k)) == 0.)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2764 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2765 err = -2;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2766 goto triangular_error;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2767 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2768
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2769 Complex tmp = work[k] / data(cidx(k));
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2770 work[k] = tmp;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2771 for (octave_idx_type i = cidx(k)+1; i < cidx(k+1); i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2772 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2773 octave_idx_type iidx = ridx(i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2774 work[iidx] = work[iidx] - tmp * data(i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2775 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2776 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2777 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2778 for (octave_idx_type i = 0; i < nc; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2779 retval.xelem (i, j) = work[i];
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2780 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2781
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2782 if (calc_cond)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2783 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2784 // Calculation of 1-norm of inv(*this)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2785 for (octave_idx_type i = 0; i < nm; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2786 work[i] = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2787
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2788 for (octave_idx_type j = 0; j < nr; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2789 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2790 work[j] = 1.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2791
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2792 for (octave_idx_type k = j; k < nc; k++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2793 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2794
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2795 if (work[k] != 0.)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2796 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2797 Complex tmp = work[k] / data(cidx(k));
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2798 work[k] = tmp;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2799 for (octave_idx_type i = cidx(k)+1;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2800 i < cidx(k+1); i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2801 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2802 octave_idx_type iidx = ridx(i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2803 work[iidx] = work[iidx] - tmp * data(i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2804 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2805 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2806 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2807 double atmp = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2808 for (octave_idx_type i = j; i < nc; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2809 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2810 atmp += std::abs(work[i]);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2811 work[i] = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2812 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2813 if (atmp > ainvnorm)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2814 ainvnorm = atmp;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2815 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2816 rcond = 1. / ainvnorm / anorm;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2817 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2818 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2819 triangular_error:
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2820 if (err != 0)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2821 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2822 if (sing_handler)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2823 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2824 sing_handler (rcond);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2825 mattype.mark_as_rectangular ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2826 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2827 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2828 (*current_liboctave_error_handler)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2829 ("SparseComplexMatrix::solve matrix singular to machine precision, rcond = %g",
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2830 rcond);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2831 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2832
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2833 volatile double rcond_plus_one = rcond + 1.0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2834
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2835 if (rcond_plus_one == 1.0 \|\| xisnan (rcond))
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2836 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2837 err = -2;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2838
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2839 if (sing_handler)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2840 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2841 sing_handler (rcond);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2842 mattype.mark_as_rectangular ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2843 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2844 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2845 (*current_liboctave_error_handler)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2846 ("matrix singular to machine precision, rcond = %g",
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2847 rcond);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2848 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2849 }
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	2850 else
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2851 (*current_liboctave_error_handler) ("incorrect matrix type");
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	2852 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	2853
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	2854 return retval;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	2855 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	2856
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	2857 SparseComplexMatrix
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	2858 SparseComplexMatrix::ltsolve (MatrixType &mattype, const SparseMatrix& b,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2859 octave_idx_type& err, double& rcond,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2860 solve_singularity_handler sing_handler,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2861 bool calc_cond) const
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	2862 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	2863 SparseComplexMatrix retval;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	2864
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	2865 octave_idx_type nr = rows ();
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	2866 octave_idx_type nc = cols ();
5630 512d0d11ae39 [project @ 2006-02-20 22:05:30 by dbateman] dbateman parents: 5610 diff changeset	2867 octave_idx_type nm = (nc > nr ? nc : nr);
512d0d11ae39 [project @ 2006-02-20 22:05:30 by dbateman] dbateman parents: 5610 diff changeset	2868
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	2869 err = 0;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	2870
6924 be176b7e110a [project @ 2007-09-25 19:08:19 by dbateman] dbateman parents: 6840 diff changeset	2871 if (nr != b.rows ())
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	2872 (*current_liboctave_error_handler)
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	2873 ("matrix dimension mismatch solution of linear equations");
6924 be176b7e110a [project @ 2007-09-25 19:08:19 by dbateman] dbateman parents: 6840 diff changeset	2874 else if (nr == 0 \|\| nc == 0 \|\| b.cols () == 0)
be176b7e110a [project @ 2007-09-25 19:08:19 by dbateman] dbateman parents: 6840 diff changeset	2875 retval = SparseComplexMatrix (nc, b.cols ());
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	2876 else
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	2877 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	2878 // Print spparms("spumoni") info if requested
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	2879 int typ = mattype.type ();
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	2880 mattype.info ();
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	2881
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	2882 if (typ == MatrixType::Permuted_Lower \|\|
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2883 typ == MatrixType::Lower)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2884 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2885 double anorm = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2886 double ainvnorm = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2887 rcond = 1.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2888
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2889 if (calc_cond)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2890 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2891 // Calculate the 1-norm of matrix for rcond calculation
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2892 for (octave_idx_type j = 0; j < nc; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2893 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2894 double atmp = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2895 for (octave_idx_type i = cidx(j); i < cidx(j+1); i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2896 atmp += std::abs(data(i));
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2897 if (atmp > anorm)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2898 anorm = atmp;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2899 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2900 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2901
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2902 octave_idx_type b_nc = b.cols ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2903 octave_idx_type b_nz = b.nnz ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2904 retval = SparseComplexMatrix (nc, b_nc, b_nz);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2905 retval.xcidx(0) = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2906 octave_idx_type ii = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2907 octave_idx_type x_nz = b_nz;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2908
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2909 if (typ == MatrixType::Permuted_Lower)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2910 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2911 OCTAVE_LOCAL_BUFFER (Complex, work, nm);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2912 octave_idx_type *perm = mattype.triangular_perm ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2913
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2914 for (octave_idx_type j = 0; j < b_nc; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2915 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2916 for (octave_idx_type i = 0; i < nm; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2917 work[i] = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2918 for (octave_idx_type i = b.cidx(j); i < b.cidx(j+1); i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2919 work[perm[b.ridx(i)]] = b.data(i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2920
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2921 for (octave_idx_type k = 0; k < nc; k++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2922 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2923 if (work[k] != 0.)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2924 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2925 octave_idx_type minr = nr;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2926 octave_idx_type mini = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2927
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2928 for (octave_idx_type i = cidx(k); i < cidx(k+1); i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2929 if (perm[ridx(i)] < minr)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2930 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2931 minr = perm[ridx(i)];
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2932 mini = i;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2933 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2934
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2935 if (minr != k \|\| data (mini) == 0.)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2936 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2937 err = -2;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2938 goto triangular_error;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2939 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2940
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2941 Complex tmp = work[k] / data(mini);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2942 work[k] = tmp;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2943 for (octave_idx_type i = cidx(k); i < cidx(k+1); i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2944 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2945 if (i == mini)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2946 continue;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2947
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2948 octave_idx_type iidx = perm[ridx(i)];
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2949 work[iidx] = work[iidx] - tmp * data(i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2950 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2951 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2952 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2953
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2954 // Count non-zeros in work vector and adjust space in
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2955 // retval if needed
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2956 octave_idx_type new_nnz = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2957 for (octave_idx_type i = 0; i < nc; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2958 if (work[i] != 0.)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2959 new_nnz++;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2960
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2961 if (ii + new_nnz > x_nz)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2962 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2963 // Resize the sparse matrix
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2964 octave_idx_type sz = new_nnz * (b_nc - j) + x_nz;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2965 retval.change_capacity (sz);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2966 x_nz = sz;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2967 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2968
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2969 for (octave_idx_type i = 0; i < nc; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2970 if (work[i] != 0.)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2971 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2972 retval.xridx(ii) = i;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2973 retval.xdata(ii++) = work[i];
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2974 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2975 retval.xcidx(j+1) = ii;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2976 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2977
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2978 retval.maybe_compress ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2979
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2980 if (calc_cond)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2981 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2982 // Calculation of 1-norm of inv(*this)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2983 for (octave_idx_type i = 0; i < nm; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2984 work[i] = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2985
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2986 for (octave_idx_type j = 0; j < nr; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2987 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2988 work[j] = 1.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2989
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2990 for (octave_idx_type k = 0; k < nc; k++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2991 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2992 if (work[k] != 0.)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2993 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2994 octave_idx_type minr = nr;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2995 octave_idx_type mini = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2996
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2997 for (octave_idx_type i = cidx(k);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2998 i < cidx(k+1); i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	2999 if (perm[ridx(i)] < minr)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3000 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3001 minr = perm[ridx(i)];
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3002 mini = i;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3003 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3004
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3005 Complex tmp = work[k] / data(mini);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3006 work[k] = tmp;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3007 for (octave_idx_type i = cidx(k);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3008 i < cidx(k+1); i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3009 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3010 if (i == mini)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3011 continue;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3012
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3013 octave_idx_type iidx = perm[ridx(i)];
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3014 work[iidx] = work[iidx] - tmp * data(i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3015 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3016 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3017 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3018
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3019 double atmp = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3020 for (octave_idx_type i = j; i < nc; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3021 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3022 atmp += std::abs(work[i]);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3023 work[i] = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3024 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3025 if (atmp > ainvnorm)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3026 ainvnorm = atmp;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3027 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3028 rcond = 1. / ainvnorm / anorm;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3029 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3030 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3031 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3032 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3033 OCTAVE_LOCAL_BUFFER (Complex, work, nm);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3034
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3035 for (octave_idx_type j = 0; j < b_nc; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3036 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3037 for (octave_idx_type i = 0; i < nm; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3038 work[i] = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3039 for (octave_idx_type i = b.cidx(j); i < b.cidx(j+1); i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3040 work[b.ridx(i)] = b.data(i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3041
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3042 for (octave_idx_type k = 0; k < nc; k++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3043 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3044 if (work[k] != 0.)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3045 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3046 if (ridx(cidx(k)) != k \|\|
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3047 data(cidx(k)) == 0.)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3048 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3049 err = -2;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3050 goto triangular_error;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3051 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3052
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3053 Complex tmp = work[k] / data(cidx(k));
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3054 work[k] = tmp;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3055 for (octave_idx_type i = cidx(k)+1; i < cidx(k+1); i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3056 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3057 octave_idx_type iidx = ridx(i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3058 work[iidx] = work[iidx] - tmp * data(i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3059 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3060 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3061 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3062
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3063 // Count non-zeros in work vector and adjust space in
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3064 // retval if needed
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3065 octave_idx_type new_nnz = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3066 for (octave_idx_type i = 0; i < nc; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3067 if (work[i] != 0.)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3068 new_nnz++;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3069
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3070 if (ii + new_nnz > x_nz)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3071 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3072 // Resize the sparse matrix
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3073 octave_idx_type sz = new_nnz * (b_nc - j) + x_nz;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3074 retval.change_capacity (sz);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3075 x_nz = sz;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3076 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3077
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3078 for (octave_idx_type i = 0; i < nc; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3079 if (work[i] != 0.)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3080 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3081 retval.xridx(ii) = i;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3082 retval.xdata(ii++) = work[i];
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3083 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3084 retval.xcidx(j+1) = ii;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3085 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3086
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3087 retval.maybe_compress ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3088
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3089 if (calc_cond)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3090 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3091 // Calculation of 1-norm of inv(*this)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3092 for (octave_idx_type i = 0; i < nm; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3093 work[i] = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3094
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3095 for (octave_idx_type j = 0; j < nr; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3096 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3097 work[j] = 1.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3098
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3099 for (octave_idx_type k = j; k < nc; k++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3100 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3101
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3102 if (work[k] != 0.)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3103 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3104 Complex tmp = work[k] / data(cidx(k));
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3105 work[k] = tmp;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3106 for (octave_idx_type i = cidx(k)+1;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3107 i < cidx(k+1); i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3108 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3109 octave_idx_type iidx = ridx(i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3110 work[iidx] = work[iidx] - tmp * data(i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3111 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3112 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3113 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3114 double atmp = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3115 for (octave_idx_type i = j; i < nc; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3116 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3117 atmp += std::abs(work[i]);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3118 work[i] = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3119 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3120 if (atmp > ainvnorm)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3121 ainvnorm = atmp;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3122 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3123 rcond = 1. / ainvnorm / anorm;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3124 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3125 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3126
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3127 triangular_error:
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3128 if (err != 0)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3129 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3130 if (sing_handler)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3131 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3132 sing_handler (rcond);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3133 mattype.mark_as_rectangular ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3134 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3135 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3136 (*current_liboctave_error_handler)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3137 ("SparseComplexMatrix::solve matrix singular to machine precision, rcond = %g",
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3138 rcond);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3139 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3140
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3141 volatile double rcond_plus_one = rcond + 1.0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3142
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3143 if (rcond_plus_one == 1.0 \|\| xisnan (rcond))
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3144 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3145 err = -2;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3146
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3147 if (sing_handler)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3148 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3149 sing_handler (rcond);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3150 mattype.mark_as_rectangular ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3151 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3152 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3153 (*current_liboctave_error_handler)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3154 ("matrix singular to machine precision, rcond = %g",
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3155 rcond);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3156 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3157 }
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	3158 else
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3159 (*current_liboctave_error_handler) ("incorrect matrix type");
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	3160 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	3161
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	3162 return retval;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	3163 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	3164
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	3165 ComplexMatrix
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	3166 SparseComplexMatrix::ltsolve (MatrixType &mattype, const ComplexMatrix& b,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3167 octave_idx_type& err, double& rcond,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3168 solve_singularity_handler sing_handler,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3169 bool calc_cond) const
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	3170 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	3171 ComplexMatrix retval;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	3172
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	3173 octave_idx_type nr = rows ();
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	3174 octave_idx_type nc = cols ();
5630 512d0d11ae39 [project @ 2006-02-20 22:05:30 by dbateman] dbateman parents: 5610 diff changeset	3175 octave_idx_type nm = (nc > nr ? nc : nr);
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	3176 err = 0;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	3177
6924 be176b7e110a [project @ 2007-09-25 19:08:19 by dbateman] dbateman parents: 6840 diff changeset	3178 if (nr != b.rows ())
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	3179 (*current_liboctave_error_handler)
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	3180 ("matrix dimension mismatch solution of linear equations");
6924 be176b7e110a [project @ 2007-09-25 19:08:19 by dbateman] dbateman parents: 6840 diff changeset	3181 else if (nr == 0 \|\| nc == 0 \|\| b.cols () == 0)
be176b7e110a [project @ 2007-09-25 19:08:19 by dbateman] dbateman parents: 6840 diff changeset	3182 retval = ComplexMatrix (nc, b.cols (), Complex (0.0, 0.0));
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	3183 else
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	3184 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	3185 // Print spparms("spumoni") info if requested
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	3186 int typ = mattype.type ();
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	3187 mattype.info ();
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	3188
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	3189 if (typ == MatrixType::Permuted_Lower \|\|
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3190 typ == MatrixType::Lower)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3191 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3192 double anorm = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3193 double ainvnorm = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3194 octave_idx_type b_nc = b.cols ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3195 rcond = 1.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3196
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3197 if (calc_cond)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3198 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3199 // Calculate the 1-norm of matrix for rcond calculation
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3200 for (octave_idx_type j = 0; j < nc; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3201 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3202 double atmp = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3203 for (octave_idx_type i = cidx(j); i < cidx(j+1); i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3204 atmp += std::abs(data(i));
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3205 if (atmp > anorm)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3206 anorm = atmp;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3207 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3208 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3209
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3210 if (typ == MatrixType::Permuted_Lower)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3211 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3212 retval.resize (nc, b_nc);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3213 OCTAVE_LOCAL_BUFFER (Complex, work, nm);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3214 octave_idx_type *perm = mattype.triangular_perm ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3215
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3216 for (octave_idx_type j = 0; j < b_nc; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3217 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3218 for (octave_idx_type i = 0; i < nm; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3219 work[i] = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3220 for (octave_idx_type i = 0; i < nr; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3221 work[perm[i]] = b(i,j);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3222
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3223 for (octave_idx_type k = 0; k < nc; k++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3224 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3225 if (work[k] != 0.)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3226 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3227 octave_idx_type minr = nr;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3228 octave_idx_type mini = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3229
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3230 for (octave_idx_type i = cidx(k); i < cidx(k+1); i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3231 if (perm[ridx(i)] < minr)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3232 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3233 minr = perm[ridx(i)];
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3234 mini = i;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3235 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3236
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3237 if (minr != k \|\| data (mini) == 0.)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3238 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3239 err = -2;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3240 goto triangular_error;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3241 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3242
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3243 Complex tmp = work[k] / data(mini);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3244 work[k] = tmp;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3245 for (octave_idx_type i = cidx(k); i < cidx(k+1); i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3246 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3247 if (i == mini)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3248 continue;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3249
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3250 octave_idx_type iidx = perm[ridx(i)];
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3251 work[iidx] = work[iidx] - tmp * data(i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3252 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3253 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3254 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3255
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3256 for (octave_idx_type i = 0; i < nc; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3257 retval (i, j) = work[i];
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3258 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3259
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3260 if (calc_cond)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3261 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3262 // Calculation of 1-norm of inv(*this)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3263 for (octave_idx_type i = 0; i < nm; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3264 work[i] = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3265
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3266 for (octave_idx_type j = 0; j < nr; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3267 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3268 work[j] = 1.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3269
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3270 for (octave_idx_type k = 0; k < nc; k++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3271 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3272 if (work[k] != 0.)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3273 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3274 octave_idx_type minr = nr;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3275 octave_idx_type mini = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3276
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3277 for (octave_idx_type i = cidx(k);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3278 i < cidx(k+1); i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3279 if (perm[ridx(i)] < minr)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3280 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3281 minr = perm[ridx(i)];
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3282 mini = i;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3283 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3284
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3285 Complex tmp = work[k] / data(mini);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3286 work[k] = tmp;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3287 for (octave_idx_type i = cidx(k);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3288 i < cidx(k+1); i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3289 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3290 if (i == mini)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3291 continue;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3292
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3293 octave_idx_type iidx = perm[ridx(i)];
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3294 work[iidx] = work[iidx] - tmp * data(i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3295 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3296 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3297 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3298
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3299 double atmp = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3300 for (octave_idx_type i = j; i < nc; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3301 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3302 atmp += std::abs(work[i]);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3303 work[i] = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3304 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3305 if (atmp > ainvnorm)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3306 ainvnorm = atmp;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3307 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3308 rcond = 1. / ainvnorm / anorm;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3309 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3310 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3311 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3312 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3313 OCTAVE_LOCAL_BUFFER (Complex, work, nm);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3314 retval.resize (nc, b_nc, 0.);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3315
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3316
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3317 for (octave_idx_type j = 0; j < b_nc; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3318 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3319 for (octave_idx_type i = 0; i < nr; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3320 work[i] = b(i,j);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3321 for (octave_idx_type i = nr; i < nc; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3322 work[i] = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3323
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3324 for (octave_idx_type k = 0; k < nc; k++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3325 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3326 if (work[k] != 0.)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3327 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3328 if (ridx(cidx(k)) != k \|\|
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3329 data(cidx(k)) == 0.)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3330 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3331 err = -2;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3332 goto triangular_error;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3333 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3334
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3335 Complex tmp = work[k] / data(cidx(k));
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3336 work[k] = tmp;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3337 for (octave_idx_type i = cidx(k)+1; i < cidx(k+1); i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3338 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3339 octave_idx_type iidx = ridx(i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3340 work[iidx] = work[iidx] - tmp * data(i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3341 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3342 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3343 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3344
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3345 for (octave_idx_type i = 0; i < nc; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3346 retval.xelem (i, j) = work[i];
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3347 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3348
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3349 if (calc_cond)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3350 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3351 // Calculation of 1-norm of inv(*this)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3352 for (octave_idx_type i = 0; i < nm; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3353 work[i] = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3354
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3355 for (octave_idx_type j = 0; j < nr; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3356 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3357 work[j] = 1.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3358
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3359 for (octave_idx_type k = j; k < nc; k++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3360 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3361
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3362 if (work[k] != 0.)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3363 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3364 Complex tmp = work[k] / data(cidx(k));
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3365 work[k] = tmp;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3366 for (octave_idx_type i = cidx(k)+1;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3367 i < cidx(k+1); i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3368 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3369 octave_idx_type iidx = ridx(i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3370 work[iidx] = work[iidx] - tmp * data(i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3371 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3372 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3373 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3374 double atmp = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3375 for (octave_idx_type i = j; i < nc; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3376 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3377 atmp += std::abs(work[i]);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3378 work[i] = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3379 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3380 if (atmp > ainvnorm)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3381 ainvnorm = atmp;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3382 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3383 rcond = 1. / ainvnorm / anorm;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3384 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3385 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3386
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3387 triangular_error:
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3388 if (err != 0)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3389 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3390 if (sing_handler)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3391 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3392 sing_handler (rcond);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3393 mattype.mark_as_rectangular ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3394 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3395 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3396 (*current_liboctave_error_handler)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3397 ("SparseComplexMatrix::solve matrix singular to machine precision, rcond = %g",
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3398 rcond);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3399 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3400
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3401 volatile double rcond_plus_one = rcond + 1.0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3402
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3403 if (rcond_plus_one == 1.0 \|\| xisnan (rcond))
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3404 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3405 err = -2;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3406
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3407 if (sing_handler)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3408 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3409 sing_handler (rcond);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3410 mattype.mark_as_rectangular ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3411 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3412 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3413 (*current_liboctave_error_handler)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3414 ("matrix singular to machine precision, rcond = %g",
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3415 rcond);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3416 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3417 }
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	3418 else
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3419 (*current_liboctave_error_handler) ("incorrect matrix type");
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	3420 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	3421
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	3422 return retval;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	3423 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	3424
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	3425 SparseComplexMatrix
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	3426 SparseComplexMatrix::ltsolve (MatrixType &mattype, const SparseComplexMatrix& b,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3427 octave_idx_type& err, double& rcond,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3428 solve_singularity_handler sing_handler,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3429 bool calc_cond) const
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	3430 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	3431 SparseComplexMatrix retval;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	3432
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	3433 octave_idx_type nr = rows ();
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	3434 octave_idx_type nc = cols ();
5630 512d0d11ae39 [project @ 2006-02-20 22:05:30 by dbateman] dbateman parents: 5610 diff changeset	3435 octave_idx_type nm = (nc > nr ? nc : nr);
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	3436 err = 0;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	3437
6924 be176b7e110a [project @ 2007-09-25 19:08:19 by dbateman] dbateman parents: 6840 diff changeset	3438 if (nr != b.rows ())
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	3439 (*current_liboctave_error_handler)
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	3440 ("matrix dimension mismatch solution of linear equations");
6924 be176b7e110a [project @ 2007-09-25 19:08:19 by dbateman] dbateman parents: 6840 diff changeset	3441 else if (nr == 0 \|\| nc == 0 \|\| b.cols () == 0)
be176b7e110a [project @ 2007-09-25 19:08:19 by dbateman] dbateman parents: 6840 diff changeset	3442 retval = SparseComplexMatrix (nc, b.cols ());
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	3443 else
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	3444 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	3445 // Print spparms("spumoni") info if requested
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	3446 int typ = mattype.type ();
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	3447 mattype.info ();
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	3448
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	3449 if (typ == MatrixType::Permuted_Lower \|\|
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3450 typ == MatrixType::Lower)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3451 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3452 double anorm = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3453 double ainvnorm = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3454 rcond = 1.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3455
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3456 if (calc_cond)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3457 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3458 // Calculate the 1-norm of matrix for rcond calculation
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3459 for (octave_idx_type j = 0; j < nc; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3460 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3461 double atmp = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3462 for (octave_idx_type i = cidx(j); i < cidx(j+1); i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3463 atmp += std::abs(data(i));
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3464 if (atmp > anorm)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3465 anorm = atmp;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3466 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3467 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3468
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3469 octave_idx_type b_nc = b.cols ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3470 octave_idx_type b_nz = b.nnz ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3471 retval = SparseComplexMatrix (nc, b_nc, b_nz);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3472 retval.xcidx(0) = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3473 octave_idx_type ii = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3474 octave_idx_type x_nz = b_nz;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3475
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3476 if (typ == MatrixType::Permuted_Lower)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3477 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3478 OCTAVE_LOCAL_BUFFER (Complex, work, nm);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3479 octave_idx_type *perm = mattype.triangular_perm ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3480
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3481 for (octave_idx_type j = 0; j < b_nc; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3482 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3483 for (octave_idx_type i = 0; i < nm; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3484 work[i] = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3485 for (octave_idx_type i = b.cidx(j); i < b.cidx(j+1); i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3486 work[perm[b.ridx(i)]] = b.data(i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3487
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3488 for (octave_idx_type k = 0; k < nc; k++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3489 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3490 if (work[k] != 0.)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3491 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3492 octave_idx_type minr = nr;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3493 octave_idx_type mini = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3494
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3495 for (octave_idx_type i = cidx(k); i < cidx(k+1); i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3496 if (perm[ridx(i)] < minr)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3497 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3498 minr = perm[ridx(i)];
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3499 mini = i;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3500 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3501
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3502 if (minr != k \|\| data (mini) == 0.)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3503 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3504 err = -2;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3505 goto triangular_error;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3506 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3507
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3508 Complex tmp = work[k] / data(mini);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3509 work[k] = tmp;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3510 for (octave_idx_type i = cidx(k); i < cidx(k+1); i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3511 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3512 if (i == mini)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3513 continue;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3514
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3515 octave_idx_type iidx = perm[ridx(i)];
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3516 work[iidx] = work[iidx] - tmp * data(i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3517 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3518 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3519 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3520
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3521 // Count non-zeros in work vector and adjust space in
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3522 // retval if needed
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3523 octave_idx_type new_nnz = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3524 for (octave_idx_type i = 0; i < nc; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3525 if (work[i] != 0.)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3526 new_nnz++;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3527
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3528 if (ii + new_nnz > x_nz)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3529 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3530 // Resize the sparse matrix
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3531 octave_idx_type sz = new_nnz * (b_nc - j) + x_nz;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3532 retval.change_capacity (sz);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3533 x_nz = sz;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3534 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3535
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3536 for (octave_idx_type i = 0; i < nc; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3537 if (work[i] != 0.)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3538 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3539 retval.xridx(ii) = i;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3540 retval.xdata(ii++) = work[i];
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3541 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3542 retval.xcidx(j+1) = ii;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3543 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3544
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3545 retval.maybe_compress ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3546
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3547 if (calc_cond)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3548 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3549 // Calculation of 1-norm of inv(*this)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3550 for (octave_idx_type i = 0; i < nm; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3551 work[i] = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3552
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3553 for (octave_idx_type j = 0; j < nr; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3554 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3555 work[j] = 1.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3556
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3557 for (octave_idx_type k = 0; k < nc; k++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3558 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3559 if (work[k] != 0.)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3560 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3561 octave_idx_type minr = nr;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3562 octave_idx_type mini = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3563
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3564 for (octave_idx_type i = cidx(k);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3565 i < cidx(k+1); i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3566 if (perm[ridx(i)] < minr)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3567 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3568 minr = perm[ridx(i)];
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3569 mini = i;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3570 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3571
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3572 Complex tmp = work[k] / data(mini);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3573 work[k] = tmp;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3574 for (octave_idx_type i = cidx(k);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3575 i < cidx(k+1); i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3576 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3577 if (i == mini)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3578 continue;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3579
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3580 octave_idx_type iidx = perm[ridx(i)];
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3581 work[iidx] = work[iidx] - tmp * data(i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3582 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3583 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3584 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3585
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3586 double atmp = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3587 for (octave_idx_type i = j; i < nc; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3588 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3589 atmp += std::abs(work[i]);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3590 work[i] = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3591 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3592 if (atmp > ainvnorm)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3593 ainvnorm = atmp;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3594 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3595 rcond = 1. / ainvnorm / anorm;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3596 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3597 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3598 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3599 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3600 OCTAVE_LOCAL_BUFFER (Complex, work, nm);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3601
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3602 for (octave_idx_type j = 0; j < b_nc; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3603 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3604 for (octave_idx_type i = 0; i < nm; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3605 work[i] = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3606 for (octave_idx_type i = b.cidx(j); i < b.cidx(j+1); i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3607 work[b.ridx(i)] = b.data(i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3608
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3609 for (octave_idx_type k = 0; k < nc; k++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3610 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3611 if (work[k] != 0.)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3612 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3613 if (ridx(cidx(k)) != k \|\|
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3614 data(cidx(k)) == 0.)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3615 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3616 err = -2;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3617 goto triangular_error;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3618 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3619
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3620 Complex tmp = work[k] / data(cidx(k));
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3621 work[k] = tmp;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3622 for (octave_idx_type i = cidx(k)+1; i < cidx(k+1); i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3623 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3624 octave_idx_type iidx = ridx(i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3625 work[iidx] = work[iidx] - tmp * data(i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3626 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3627 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3628 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3629
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3630 // Count non-zeros in work vector and adjust space in
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3631 // retval if needed
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3632 octave_idx_type new_nnz = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3633 for (octave_idx_type i = 0; i < nc; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3634 if (work[i] != 0.)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3635 new_nnz++;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3636
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3637 if (ii + new_nnz > x_nz)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3638 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3639 // Resize the sparse matrix
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3640 octave_idx_type sz = new_nnz * (b_nc - j) + x_nz;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3641 retval.change_capacity (sz);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3642 x_nz = sz;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3643 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3644
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3645 for (octave_idx_type i = 0; i < nc; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3646 if (work[i] != 0.)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3647 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3648 retval.xridx(ii) = i;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3649 retval.xdata(ii++) = work[i];
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3650 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3651 retval.xcidx(j+1) = ii;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3652 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3653
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3654 retval.maybe_compress ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3655
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3656 if (calc_cond)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3657 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3658 // Calculation of 1-norm of inv(*this)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3659 for (octave_idx_type i = 0; i < nm; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3660 work[i] = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3661
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3662 for (octave_idx_type j = 0; j < nr; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3663 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3664 work[j] = 1.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3665
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3666 for (octave_idx_type k = j; k < nc; k++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3667 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3668
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3669 if (work[k] != 0.)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3670 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3671 Complex tmp = work[k] / data(cidx(k));
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3672 work[k] = tmp;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3673 for (octave_idx_type i = cidx(k)+1;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3674 i < cidx(k+1); i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3675 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3676 octave_idx_type iidx = ridx(i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3677 work[iidx] = work[iidx] - tmp * data(i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3678 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3679 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3680 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3681 double atmp = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3682 for (octave_idx_type i = j; i < nc; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3683 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3684 atmp += std::abs(work[i]);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3685 work[i] = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3686 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3687 if (atmp > ainvnorm)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3688 ainvnorm = atmp;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3689 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3690 rcond = 1. / ainvnorm / anorm;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3691 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3692 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3693
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3694 triangular_error:
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3695 if (err != 0)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3696 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3697 if (sing_handler)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3698 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3699 sing_handler (rcond);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3700 mattype.mark_as_rectangular ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3701 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3702 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3703 (*current_liboctave_error_handler)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3704 ("SparseComplexMatrix::solve matrix singular to machine precision, rcond = %g",
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3705 rcond);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3706 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3707
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3708 volatile double rcond_plus_one = rcond + 1.0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3709
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3710 if (rcond_plus_one == 1.0 \|\| xisnan (rcond))
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3711 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3712 err = -2;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3713
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3714 if (sing_handler)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3715 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3716 sing_handler (rcond);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3717 mattype.mark_as_rectangular ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3718 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3719 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3720 (*current_liboctave_error_handler)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3721 ("matrix singular to machine precision, rcond = %g",
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3722 rcond);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3723 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3724 }
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	3725 else
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3726 (*current_liboctave_error_handler) ("incorrect matrix type");
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	3727 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	3728
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	3729 return retval;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	3730 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	3731
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	3732 ComplexMatrix
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	3733 SparseComplexMatrix::trisolve (MatrixType &mattype, const Matrix& b,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3734 octave_idx_type& err, double& rcond,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3735 solve_singularity_handler sing_handler,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3736 bool calc_cond) const
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	3737 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	3738 ComplexMatrix retval;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	3739
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	3740 octave_idx_type nr = rows ();
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	3741 octave_idx_type nc = cols ();
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	3742 err = 0;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	3743
6924 be176b7e110a [project @ 2007-09-25 19:08:19 by dbateman] dbateman parents: 6840 diff changeset	3744 if (nr != nc \|\| nr != b.rows ())
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	3745 (*current_liboctave_error_handler)
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	3746 ("matrix dimension mismatch solution of linear equations");
6924 be176b7e110a [project @ 2007-09-25 19:08:19 by dbateman] dbateman parents: 6840 diff changeset	3747 else if (nr == 0 \|\| b.cols () == 0)
be176b7e110a [project @ 2007-09-25 19:08:19 by dbateman] dbateman parents: 6840 diff changeset	3748 retval = ComplexMatrix (nc, b.cols (), Complex (0.0, 0.0));
5681 233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	3749 else if (calc_cond)
233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	3750 (*current_liboctave_error_handler)
233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	3751 ("calculation of condition number not implemented");
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	3752 else
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	3753 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	3754 // Print spparms("spumoni") info if requested
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	3755 volatile int typ = mattype.type ();
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	3756 mattype.info ();
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	3757
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	3758 if (typ == MatrixType::Tridiagonal_Hermitian)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3759 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3760 OCTAVE_LOCAL_BUFFER (double, D, nr);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3761 OCTAVE_LOCAL_BUFFER (Complex, DL, nr - 1);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3762
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3763 if (mattype.is_dense ())
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3764 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3765 octave_idx_type ii = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3766
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3767 for (octave_idx_type j = 0; j < nc-1; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3768 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3769 D[j] = std::real(data(ii++));
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3770 DL[j] = data(ii);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3771 ii += 2;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3772 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3773 D[nc-1] = std::real(data(ii));
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3774 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3775 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3776 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3777 D[0] = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3778 for (octave_idx_type i = 0; i < nr - 1; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3779 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3780 D[i+1] = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3781 DL[i] = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3782 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3783
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3784 for (octave_idx_type j = 0; j < nc; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3785 for (octave_idx_type i = cidx(j); i < cidx(j+1); i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3786 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3787 if (ridx(i) == j)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3788 D[j] = std::real(data(i));
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3789 else if (ridx(i) == j + 1)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3790 DL[j] = data(i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3791 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3792 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3793
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3794 octave_idx_type b_nc = b.cols();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3795 retval = ComplexMatrix (b);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3796 Complex *result = retval.fortran_vec ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3797
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3798 F77_XFCN (zptsv, ZPTSV, (nr, b_nc, D, DL, result,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3799 b.rows(), err));
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3800
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3801 if (err != 0)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3802 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3803 err = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3804 mattype.mark_as_unsymmetric ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3805 typ = MatrixType::Tridiagonal;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3806 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3807 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3808 rcond = 1.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3809 }
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	3810
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	3811 if (typ == MatrixType::Tridiagonal)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3812 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3813 OCTAVE_LOCAL_BUFFER (Complex, DU, nr - 1);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3814 OCTAVE_LOCAL_BUFFER (Complex, D, nr);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3815 OCTAVE_LOCAL_BUFFER (Complex, DL, nr - 1);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3816
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3817 if (mattype.is_dense ())
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3818 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3819 octave_idx_type ii = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3820
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3821 for (octave_idx_type j = 0; j < nc-1; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3822 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3823 D[j] = data(ii++);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3824 DL[j] = data(ii++);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3825 DU[j] = data(ii++);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3826 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3827 D[nc-1] = data(ii);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3828 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3829 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3830 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3831 D[0] = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3832 for (octave_idx_type i = 0; i < nr - 1; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3833 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3834 D[i+1] = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3835 DL[i] = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3836 DU[i] = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3837 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3838
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3839 for (octave_idx_type j = 0; j < nc; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3840 for (octave_idx_type i = cidx(j); i < cidx(j+1); i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3841 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3842 if (ridx(i) == j)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3843 D[j] = data(i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3844 else if (ridx(i) == j + 1)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3845 DL[j] = data(i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3846 else if (ridx(i) == j - 1)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3847 DU[j-1] = data(i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3848 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3849 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3850
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3851 octave_idx_type b_nc = b.cols();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3852 retval = ComplexMatrix (b);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3853 Complex *result = retval.fortran_vec ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3854
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3855 F77_XFCN (zgtsv, ZGTSV, (nr, b_nc, DL, D, DU, result,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3856 b.rows(), err));
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3857
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3858 if (err != 0)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3859 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3860 rcond = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3861 err = -2;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3862
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3863 if (sing_handler)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3864 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3865 sing_handler (rcond);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3866 mattype.mark_as_rectangular ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3867 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3868 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3869 (*current_liboctave_error_handler)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3870 ("matrix singular to machine precision");
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3871
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3872 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3873 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3874 rcond = 1.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3875 }
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	3876 else if (typ != MatrixType::Tridiagonal_Hermitian)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3877 (*current_liboctave_error_handler) ("incorrect matrix type");
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	3878 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	3879
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	3880 return retval;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	3881 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	3882
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	3883 SparseComplexMatrix
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	3884 SparseComplexMatrix::trisolve (MatrixType &mattype, const SparseMatrix& b,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3885 octave_idx_type& err, double& rcond,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3886 solve_singularity_handler sing_handler,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3887 bool calc_cond) const
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	3888 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	3889 SparseComplexMatrix retval;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	3890
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	3891 octave_idx_type nr = rows ();
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	3892 octave_idx_type nc = cols ();
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	3893 err = 0;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	3894
6924 be176b7e110a [project @ 2007-09-25 19:08:19 by dbateman] dbateman parents: 6840 diff changeset	3895 if (nr != nc \|\| nr != b.rows ())
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	3896 (*current_liboctave_error_handler)
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	3897 ("matrix dimension mismatch solution of linear equations");
6924 be176b7e110a [project @ 2007-09-25 19:08:19 by dbateman] dbateman parents: 6840 diff changeset	3898 else if (nr == 0 \|\| b.cols () == 0)
be176b7e110a [project @ 2007-09-25 19:08:19 by dbateman] dbateman parents: 6840 diff changeset	3899 retval = SparseComplexMatrix (nc, b.cols ());
5681 233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	3900 else if (calc_cond)
233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	3901 (*current_liboctave_error_handler)
233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	3902 ("calculation of condition number not implemented");
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	3903 else
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	3904 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	3905 // Print spparms("spumoni") info if requested
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	3906 int typ = mattype.type ();
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	3907 mattype.info ();
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	3908
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	3909 // Note can't treat symmetric case as there is no dpttrf function
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	3910 if (typ == MatrixType::Tridiagonal \|\|
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3911 typ == MatrixType::Tridiagonal_Hermitian)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3912 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3913 OCTAVE_LOCAL_BUFFER (Complex, DU2, nr - 2);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3914 OCTAVE_LOCAL_BUFFER (Complex, DU, nr - 1);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3915 OCTAVE_LOCAL_BUFFER (Complex, D, nr);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3916 OCTAVE_LOCAL_BUFFER (Complex, DL, nr - 1);
10350 12884915a8e4 merge MArray classes & improve Array interface Jaroslav Hajek <highegg@gmail.com> parents: 10314 diff changeset	3917 Array<octave_idx_type> ipvt (nr, 1);
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3918 octave_idx_type *pipvt = ipvt.fortran_vec ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3919
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3920 if (mattype.is_dense ())
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3921 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3922 octave_idx_type ii = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3923
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3924 for (octave_idx_type j = 0; j < nc-1; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3925 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3926 D[j] = data(ii++);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3927 DL[j] = data(ii++);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3928 DU[j] = data(ii++);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3929 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3930 D[nc-1] = data(ii);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3931 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3932 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3933 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3934 D[0] = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3935 for (octave_idx_type i = 0; i < nr - 1; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3936 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3937 D[i+1] = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3938 DL[i] = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3939 DU[i] = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3940 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3941
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3942 for (octave_idx_type j = 0; j < nc; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3943 for (octave_idx_type i = cidx(j); i < cidx(j+1); i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3944 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3945 if (ridx(i) == j)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3946 D[j] = data(i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3947 else if (ridx(i) == j + 1)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3948 DL[j] = data(i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3949 else if (ridx(i) == j - 1)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3950 DU[j-1] = data(i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3951 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3952 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3953
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3954 F77_XFCN (zgttrf, ZGTTRF, (nr, DL, D, DU, DU2, pipvt, err));
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3955
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3956 if (err != 0)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3957 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3958 err = -2;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3959 rcond = 0.0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3960
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3961 if (sing_handler)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3962 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3963 sing_handler (rcond);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3964 mattype.mark_as_rectangular ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3965 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3966 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3967 (*current_liboctave_error_handler)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3968 ("matrix singular to machine precision");
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3969
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3970 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3971 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3972 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3973 char job = 'N';
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3974 volatile octave_idx_type x_nz = b.nnz ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3975 octave_idx_type b_nc = b.cols ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3976 retval = SparseComplexMatrix (nr, b_nc, x_nz);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3977 retval.xcidx(0) = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3978 volatile octave_idx_type ii = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3979 rcond = 1.0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3980
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3981 OCTAVE_LOCAL_BUFFER (Complex, work, nr);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3982
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3983 for (volatile octave_idx_type j = 0; j < b_nc; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3984 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3985 for (octave_idx_type i = 0; i < nr; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3986 work[i] = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3987 for (octave_idx_type i = b.cidx(j); i < b.cidx(j+1); i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3988 work[b.ridx(i)] = b.data(i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3989
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3990 F77_XFCN (zgttrs, ZGTTRS,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3991 (F77_CONST_CHAR_ARG2 (&job, 1),
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3992 nr, 1, DL, D, DU, DU2, pipvt,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3993 work, b.rows (), err
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3994 F77_CHAR_ARG_LEN (1)));
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3995
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3996 // Count non-zeros in work vector and adjust
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3997 // space in retval if needed
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3998 octave_idx_type new_nnz = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	3999 for (octave_idx_type i = 0; i < nr; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4000 if (work[i] != 0.)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4001 new_nnz++;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4002
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4003 if (ii + new_nnz > x_nz)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4004 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4005 // Resize the sparse matrix
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4006 octave_idx_type sz = new_nnz * (b_nc - j) + x_nz;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4007 retval.change_capacity (sz);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4008 x_nz = sz;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4009 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4010
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4011 for (octave_idx_type i = 0; i < nr; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4012 if (work[i] != 0.)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4013 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4014 retval.xridx(ii) = i;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4015 retval.xdata(ii++) = work[i];
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4016 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4017 retval.xcidx(j+1) = ii;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4018 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4019
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4020 retval.maybe_compress ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4021 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4022 }
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	4023 else if (typ != MatrixType::Tridiagonal_Hermitian)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4024 (*current_liboctave_error_handler) ("incorrect matrix type");
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	4025 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	4026
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	4027 return retval;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	4028 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	4029
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	4030 ComplexMatrix
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	4031 SparseComplexMatrix::trisolve (MatrixType &mattype, const ComplexMatrix& b,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4032 octave_idx_type& err, double& rcond,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4033 solve_singularity_handler sing_handler,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4034 bool calc_cond) const
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	4035 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	4036 ComplexMatrix retval;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	4037
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	4038 octave_idx_type nr = rows ();
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	4039 octave_idx_type nc = cols ();
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	4040 err = 0;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	4041
6924 be176b7e110a [project @ 2007-09-25 19:08:19 by dbateman] dbateman parents: 6840 diff changeset	4042 if (nr != nc \|\| nr != b.rows ())
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	4043 (*current_liboctave_error_handler)
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	4044 ("matrix dimension mismatch solution of linear equations");
6924 be176b7e110a [project @ 2007-09-25 19:08:19 by dbateman] dbateman parents: 6840 diff changeset	4045 else if (nr == 0 \|\| b.cols () == 0)
be176b7e110a [project @ 2007-09-25 19:08:19 by dbateman] dbateman parents: 6840 diff changeset	4046 retval = ComplexMatrix (nc, b.cols (), Complex (0.0, 0.0));
5681 233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	4047 else if (calc_cond)
233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	4048 (*current_liboctave_error_handler)
233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	4049 ("calculation of condition number not implemented");
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	4050 else
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	4051 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	4052 // Print spparms("spumoni") info if requested
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	4053 volatile int typ = mattype.type ();
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	4054 mattype.info ();
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	4055
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	4056 if (typ == MatrixType::Tridiagonal_Hermitian)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4057 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4058 OCTAVE_LOCAL_BUFFER (double, D, nr);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4059 OCTAVE_LOCAL_BUFFER (Complex, DL, nr - 1);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4060
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4061 if (mattype.is_dense ())
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4062 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4063 octave_idx_type ii = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4064
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4065 for (octave_idx_type j = 0; j < nc-1; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4066 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4067 D[j] = std::real(data(ii++));
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4068 DL[j] = data(ii);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4069 ii += 2;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4070 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4071 D[nc-1] = std::real(data(ii));
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4072 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4073 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4074 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4075 D[0] = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4076 for (octave_idx_type i = 0; i < nr - 1; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4077 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4078 D[i+1] = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4079 DL[i] = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4080 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4081
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4082 for (octave_idx_type j = 0; j < nc; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4083 for (octave_idx_type i = cidx(j); i < cidx(j+1); i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4084 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4085 if (ridx(i) == j)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4086 D[j] = std::real (data(i));
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4087 else if (ridx(i) == j + 1)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4088 DL[j] = data(i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4089 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4090 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4091
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4092 octave_idx_type b_nr = b.rows ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4093 octave_idx_type b_nc = b.cols();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4094 rcond = 1.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4095
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4096 retval = ComplexMatrix (b);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4097 Complex *result = retval.fortran_vec ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4098
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4099 F77_XFCN (zptsv, ZPTSV, (nr, b_nc, D, DL, result,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4100 b_nr, err));
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4101
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4102 if (err != 0)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4103 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4104 err = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4105 mattype.mark_as_unsymmetric ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4106 typ = MatrixType::Tridiagonal;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4107 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4108 }
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	4109
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	4110 if (typ == MatrixType::Tridiagonal)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4111 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4112 OCTAVE_LOCAL_BUFFER (Complex, DU, nr - 1);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4113 OCTAVE_LOCAL_BUFFER (Complex, D, nr);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4114 OCTAVE_LOCAL_BUFFER (Complex, DL, nr - 1);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4115
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4116 if (mattype.is_dense ())
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4117 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4118 octave_idx_type ii = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4119
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4120 for (octave_idx_type j = 0; j < nc-1; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4121 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4122 D[j] = data(ii++);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4123 DL[j] = data(ii++);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4124 DU[j] = data(ii++);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4125 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4126 D[nc-1] = data(ii);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4127 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4128 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4129 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4130 D[0] = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4131 for (octave_idx_type i = 0; i < nr - 1; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4132 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4133 D[i+1] = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4134 DL[i] = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4135 DU[i] = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4136 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4137
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4138 for (octave_idx_type j = 0; j < nc; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4139 for (octave_idx_type i = cidx(j); i < cidx(j+1); i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4140 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4141 if (ridx(i) == j)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4142 D[j] = data(i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4143 else if (ridx(i) == j + 1)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4144 DL[j] = data(i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4145 else if (ridx(i) == j - 1)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4146 DU[j-1] = data(i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4147 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4148 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4149
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4150 octave_idx_type b_nr = b.rows();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4151 octave_idx_type b_nc = b.cols();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4152 rcond = 1.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4153
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4154 retval = ComplexMatrix (b);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4155 Complex *result = retval.fortran_vec ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4156
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4157 F77_XFCN (zgtsv, ZGTSV, (nr, b_nc, DL, D, DU, result,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4158 b_nr, err));
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4159
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4160 if (err != 0)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4161 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4162 rcond = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4163 err = -2;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4164
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4165 if (sing_handler)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4166 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4167 sing_handler (rcond);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4168 mattype.mark_as_rectangular ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4169 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4170 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4171 (*current_liboctave_error_handler)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4172 ("matrix singular to machine precision");
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4173 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4174 }
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	4175 else if (typ != MatrixType::Tridiagonal_Hermitian)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4176 (*current_liboctave_error_handler) ("incorrect matrix type");
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	4177 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	4178
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	4179 return retval;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	4180 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	4181
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	4182 SparseComplexMatrix
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	4183 SparseComplexMatrix::trisolve (MatrixType &mattype,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4184 const SparseComplexMatrix& b,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4185 octave_idx_type& err, double& rcond,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4186 solve_singularity_handler sing_handler,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4187 bool calc_cond) const
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	4188 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	4189 SparseComplexMatrix retval;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	4190
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	4191 octave_idx_type nr = rows ();
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	4192 octave_idx_type nc = cols ();
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	4193 err = 0;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	4194
6924 be176b7e110a [project @ 2007-09-25 19:08:19 by dbateman] dbateman parents: 6840 diff changeset	4195 if (nr != nc \|\| nr != b.rows ())
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	4196 (*current_liboctave_error_handler)
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	4197 ("matrix dimension mismatch solution of linear equations");
6924 be176b7e110a [project @ 2007-09-25 19:08:19 by dbateman] dbateman parents: 6840 diff changeset	4198 else if (nr == 0 \|\| b.cols () == 0)
be176b7e110a [project @ 2007-09-25 19:08:19 by dbateman] dbateman parents: 6840 diff changeset	4199 retval = SparseComplexMatrix (nc, b.cols ());
5681 233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	4200 else if (calc_cond)
233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	4201 (*current_liboctave_error_handler)
233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	4202 ("calculation of condition number not implemented");
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	4203 else
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	4204 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	4205 // Print spparms("spumoni") info if requested
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	4206 int typ = mattype.type ();
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	4207 mattype.info ();
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	4208
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	4209 // Note can't treat symmetric case as there is no dpttrf function
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	4210 if (typ == MatrixType::Tridiagonal \|\|
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4211 typ == MatrixType::Tridiagonal_Hermitian)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4212 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4213 OCTAVE_LOCAL_BUFFER (Complex, DU2, nr - 2);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4214 OCTAVE_LOCAL_BUFFER (Complex, DU, nr - 1);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4215 OCTAVE_LOCAL_BUFFER (Complex, D, nr);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4216 OCTAVE_LOCAL_BUFFER (Complex, DL, nr - 1);
10350 12884915a8e4 merge MArray classes & improve Array interface Jaroslav Hajek <highegg@gmail.com> parents: 10314 diff changeset	4217 Array<octave_idx_type> ipvt (nr, 1);
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4218 octave_idx_type *pipvt = ipvt.fortran_vec ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4219
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4220 if (mattype.is_dense ())
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4221 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4222 octave_idx_type ii = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4223
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4224 for (octave_idx_type j = 0; j < nc-1; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4225 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4226 D[j] = data(ii++);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4227 DL[j] = data(ii++);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4228 DU[j] = data(ii++);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4229 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4230 D[nc-1] = data(ii);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4231 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4232 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4233 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4234 D[0] = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4235 for (octave_idx_type i = 0; i < nr - 1; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4236 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4237 D[i+1] = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4238 DL[i] = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4239 DU[i] = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4240 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4241
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4242 for (octave_idx_type j = 0; j < nc; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4243 for (octave_idx_type i = cidx(j); i < cidx(j+1); i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4244 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4245 if (ridx(i) == j)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4246 D[j] = data(i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4247 else if (ridx(i) == j + 1)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4248 DL[j] = data(i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4249 else if (ridx(i) == j - 1)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4250 DU[j-1] = data(i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4251 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4252 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4253
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4254 F77_XFCN (zgttrf, ZGTTRF, (nr, DL, D, DU, DU2, pipvt, err));
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4255
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4256 if (err != 0)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4257 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4258 rcond = 0.0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4259 err = -2;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4260
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4261 if (sing_handler)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4262 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4263 sing_handler (rcond);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4264 mattype.mark_as_rectangular ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4265 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4266 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4267 (*current_liboctave_error_handler)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4268 ("matrix singular to machine precision");
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4269 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4270 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4271 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4272 rcond = 1.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4273 char job = 'N';
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4274 octave_idx_type b_nr = b.rows ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4275 octave_idx_type b_nc = b.cols ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4276 OCTAVE_LOCAL_BUFFER (Complex, Bx, b_nr);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4277
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4278 // Take a first guess that the number of non-zero terms
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4279 // will be as many as in b
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4280 volatile octave_idx_type x_nz = b.nnz ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4281 volatile octave_idx_type ii = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4282 retval = SparseComplexMatrix (b_nr, b_nc, x_nz);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4283
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4284 retval.xcidx(0) = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4285 for (volatile octave_idx_type j = 0; j < b_nc; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4286 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4287
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4288 for (octave_idx_type i = 0; i < b_nr; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4289 Bx[i] = b (i,j);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4290
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4291 F77_XFCN (zgttrs, ZGTTRS,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4292 (F77_CONST_CHAR_ARG2 (&job, 1),
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4293 nr, 1, DL, D, DU, DU2, pipvt,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4294 Bx, b_nr, err
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4295 F77_CHAR_ARG_LEN (1)));
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4296
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4297 if (err != 0)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4298 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4299 (*current_liboctave_error_handler)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4300 ("SparseComplexMatrix::solve solve failed");
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4301
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4302 err = -1;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4303 break;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4304 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4305
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4306 // Count non-zeros in work vector and adjust
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4307 // space in retval if needed
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4308 octave_idx_type new_nnz = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4309 for (octave_idx_type i = 0; i < nr; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4310 if (Bx[i] != 0.)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4311 new_nnz++;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4312
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4313 if (ii + new_nnz > x_nz)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4314 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4315 // Resize the sparse matrix
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4316 octave_idx_type sz = new_nnz * (b_nc - j) + x_nz;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4317 retval.change_capacity (sz);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4318 x_nz = sz;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4319 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4320
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4321 for (octave_idx_type i = 0; i < nr; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4322 if (Bx[i] != 0.)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4323 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4324 retval.xridx(ii) = i;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4325 retval.xdata(ii++) = Bx[i];
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4326 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4327
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4328 retval.xcidx(j+1) = ii;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4329 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4330
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4331 retval.maybe_compress ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4332 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4333 }
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	4334 else if (typ != MatrixType::Tridiagonal_Hermitian)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4335 (*current_liboctave_error_handler) ("incorrect matrix type");
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	4336 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	4337
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	4338 return retval;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	4339 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	4340
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	4341 ComplexMatrix
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	4342 SparseComplexMatrix::bsolve (MatrixType &mattype, const Matrix& b,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4343 octave_idx_type& err, double& rcond,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4344 solve_singularity_handler sing_handler,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4345 bool calc_cond) const
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	4346 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	4347 ComplexMatrix retval;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	4348
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	4349 octave_idx_type nr = rows ();
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	4350 octave_idx_type nc = cols ();
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	4351 err = 0;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	4352
6924 be176b7e110a [project @ 2007-09-25 19:08:19 by dbateman] dbateman parents: 6840 diff changeset	4353 if (nr != nc \|\| nr != b.rows ())
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	4354 (*current_liboctave_error_handler)
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	4355 ("matrix dimension mismatch solution of linear equations");
6924 be176b7e110a [project @ 2007-09-25 19:08:19 by dbateman] dbateman parents: 6840 diff changeset	4356 else if (nr == 0 \|\| b.cols () == 0)
be176b7e110a [project @ 2007-09-25 19:08:19 by dbateman] dbateman parents: 6840 diff changeset	4357 retval = ComplexMatrix (nc, b.cols (), Complex (0.0, 0.0));
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	4358 else
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	4359 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	4360 // Print spparms("spumoni") info if requested
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	4361 volatile int typ = mattype.type ();
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	4362 mattype.info ();
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	4363
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	4364 if (typ == MatrixType::Banded_Hermitian)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4365 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4366 octave_idx_type n_lower = mattype.nlower ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4367 octave_idx_type ldm = n_lower + 1;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4368 ComplexMatrix m_band (ldm, nc);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4369 Complex *tmp_data = m_band.fortran_vec ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4370
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4371 if (! mattype.is_dense ())
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4372 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4373 octave_idx_type ii = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4374
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4375 for (octave_idx_type j = 0; j < ldm; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4376 for (octave_idx_type i = 0; i < nc; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4377 tmp_data[ii++] = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4378 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4379
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4380 for (octave_idx_type j = 0; j < nc; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4381 for (octave_idx_type i = cidx(j); i < cidx(j+1); i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4382 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4383 octave_idx_type ri = ridx (i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4384 if (ri >= j)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4385 m_band(ri - j, j) = data(i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4386 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4387
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4388 // Calculate the norm of the matrix, for later use.
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4389 double anorm;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4390 if (calc_cond)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4391 anorm = m_band.abs().sum().row(0).max();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4392
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4393 char job = 'L';
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4394 F77_XFCN (zpbtrf, ZPBTRF, (F77_CONST_CHAR_ARG2 (&job, 1),
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4395 nr, n_lower, tmp_data, ldm, err
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4396 F77_CHAR_ARG_LEN (1)));
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4397
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4398 if (err != 0)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4399 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4400 rcond = 0.0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4401 // Matrix is not positive definite!! Fall through to
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4402 // unsymmetric banded solver.
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4403 mattype.mark_as_unsymmetric ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4404 typ = MatrixType::Banded;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4405 err = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4406 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4407 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4408 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4409 if (calc_cond)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4410 {
10350 12884915a8e4 merge MArray classes & improve Array interface Jaroslav Hajek <highegg@gmail.com> parents: 10314 diff changeset	4411 Array<Complex> z (2 * nr, 1);
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4412 Complex *pz = z.fortran_vec ();
10350 12884915a8e4 merge MArray classes & improve Array interface Jaroslav Hajek <highegg@gmail.com> parents: 10314 diff changeset	4413 Array<double> iz (nr, 1);
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4414 double *piz = iz.fortran_vec ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4415
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4416 F77_XFCN (zpbcon, ZPBCON,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4417 (F77_CONST_CHAR_ARG2 (&job, 1),
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4418 nr, n_lower, tmp_data, ldm,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4419 anorm, rcond, pz, piz, err
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4420 F77_CHAR_ARG_LEN (1)));
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4421
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4422 if (err != 0)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4423 err = -2;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4424
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4425 volatile double rcond_plus_one = rcond + 1.0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4426
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4427 if (rcond_plus_one == 1.0 \|\| xisnan (rcond))
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4428 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4429 err = -2;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4430
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4431 if (sing_handler)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4432 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4433 sing_handler (rcond);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4434 mattype.mark_as_rectangular ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4435 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4436 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4437 (*current_liboctave_error_handler)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4438 ("matrix singular to machine precision, rcond = %g",
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4439 rcond);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4440 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4441 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4442 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4443 rcond = 1.0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4444
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4445 if (err == 0)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4446 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4447 retval = ComplexMatrix (b);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4448 Complex *result = retval.fortran_vec ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4449
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4450 octave_idx_type b_nc = b.cols ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4451
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4452 F77_XFCN (zpbtrs, ZPBTRS,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4453 (F77_CONST_CHAR_ARG2 (&job, 1),
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4454 nr, n_lower, b_nc, tmp_data,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4455 ldm, result, b.rows(), err
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4456 F77_CHAR_ARG_LEN (1)));
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4457
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4458 if (err != 0)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4459 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4460 (*current_liboctave_error_handler)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4461 ("SparseMatrix::solve solve failed");
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4462 err = -1;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4463 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4464 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4465 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4466 }
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	4467
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	4468 if (typ == MatrixType::Banded)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4469 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4470 // Create the storage for the banded form of the sparse matrix
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4471 octave_idx_type n_upper = mattype.nupper ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4472 octave_idx_type n_lower = mattype.nlower ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4473 octave_idx_type ldm = n_upper + 2 * n_lower + 1;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4474
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4475 ComplexMatrix m_band (ldm, nc);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4476 Complex *tmp_data = m_band.fortran_vec ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4477
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4478 if (! mattype.is_dense ())
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4479 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4480 octave_idx_type ii = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4481
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4482 for (octave_idx_type j = 0; j < ldm; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4483 for (octave_idx_type i = 0; i < nc; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4484 tmp_data[ii++] = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4485 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4486
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4487 for (octave_idx_type j = 0; j < nc; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4488 for (octave_idx_type i = cidx(j); i < cidx(j+1); i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4489 m_band(ridx(i) - j + n_lower + n_upper, j) = data(i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4490
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4491 // Calculate the norm of the matrix, for later use.
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4492 double anorm;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4493 if (calc_cond)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4494 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4495 for (octave_idx_type j = 0; j < nr; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4496 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4497 double atmp = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4498 for (octave_idx_type i = cidx(j); i < cidx(j+1); i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4499 atmp += std::abs(data(i));
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4500 if (atmp > anorm)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4501 anorm = atmp;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4502 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4503 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4504
10350 12884915a8e4 merge MArray classes & improve Array interface Jaroslav Hajek <highegg@gmail.com> parents: 10314 diff changeset	4505 Array<octave_idx_type> ipvt (nr, 1);
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4506 octave_idx_type *pipvt = ipvt.fortran_vec ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4507
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4508 F77_XFCN (zgbtrf, ZGBTRF, (nr, nc, n_lower, n_upper, tmp_data,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4509 ldm, pipvt, err));
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4510
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4511 // Throw-away extra info LAPACK gives so as to not
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4512 // change output.
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4513 if (err != 0)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4514 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4515 rcond = 0.0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4516 err = -2;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4517
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4518 if (sing_handler)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4519 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4520 sing_handler (rcond);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4521 mattype.mark_as_rectangular ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4522 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4523 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4524 (*current_liboctave_error_handler)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4525 ("matrix singular to machine precision");
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4526 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4527 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4528 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4529 if (calc_cond)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4530 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4531 char job = '1';
10350 12884915a8e4 merge MArray classes & improve Array interface Jaroslav Hajek <highegg@gmail.com> parents: 10314 diff changeset	4532 Array<Complex> z (2 * nr, 1);
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4533 Complex *pz = z.fortran_vec ();
10350 12884915a8e4 merge MArray classes & improve Array interface Jaroslav Hajek <highegg@gmail.com> parents: 10314 diff changeset	4534 Array<double> iz (nr, 1);
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4535 double *piz = iz.fortran_vec ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4536
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4537 F77_XFCN (zgbcon, ZGBCON,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4538 (F77_CONST_CHAR_ARG2 (&job, 1),
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4539 nc, n_lower, n_upper, tmp_data, ldm, pipvt,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4540 anorm, rcond, pz, piz, err
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4541 F77_CHAR_ARG_LEN (1)));
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4542
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4543 if (err != 0)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4544 err = -2;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4545
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4546 volatile double rcond_plus_one = rcond + 1.0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4547
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4548 if (rcond_plus_one == 1.0 \|\| xisnan (rcond))
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4549 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4550 err = -2;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4551
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4552 if (sing_handler)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4553 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4554 sing_handler (rcond);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4555 mattype.mark_as_rectangular ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4556 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4557 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4558 (*current_liboctave_error_handler)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4559 ("matrix singular to machine precision, rcond = %g",
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4560 rcond);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4561 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4562 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4563 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4564 rcond = 1.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4565
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4566 if (err == 0)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4567 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4568 retval = ComplexMatrix (b);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4569 Complex *result = retval.fortran_vec ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4570
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4571 octave_idx_type b_nc = b.cols ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4572
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4573 char job = 'N';
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4574 F77_XFCN (zgbtrs, ZGBTRS,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4575 (F77_CONST_CHAR_ARG2 (&job, 1),
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4576 nr, n_lower, n_upper, b_nc, tmp_data,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4577 ldm, pipvt, result, b.rows(), err
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4578 F77_CHAR_ARG_LEN (1)));
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4579 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4580 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4581 }
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	4582 else if (typ != MatrixType::Banded_Hermitian)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4583 (*current_liboctave_error_handler) ("incorrect matrix type");
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	4584 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	4585
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	4586 return retval;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	4587 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	4588
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	4589 SparseComplexMatrix
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	4590 SparseComplexMatrix::bsolve (MatrixType &mattype, const SparseMatrix& b,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4591 octave_idx_type& err, double& rcond,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4592 solve_singularity_handler sing_handler,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4593 bool calc_cond) const
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	4594 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	4595 SparseComplexMatrix retval;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	4596
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	4597 octave_idx_type nr = rows ();
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	4598 octave_idx_type nc = cols ();
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	4599 err = 0;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	4600
6924 be176b7e110a [project @ 2007-09-25 19:08:19 by dbateman] dbateman parents: 6840 diff changeset	4601 if (nr != nc \|\| nr != b.rows ())
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	4602 (*current_liboctave_error_handler)
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	4603 ("matrix dimension mismatch solution of linear equations");
6924 be176b7e110a [project @ 2007-09-25 19:08:19 by dbateman] dbateman parents: 6840 diff changeset	4604 else if (nr == 0 \|\| b.cols () == 0)
be176b7e110a [project @ 2007-09-25 19:08:19 by dbateman] dbateman parents: 6840 diff changeset	4605 retval = SparseComplexMatrix (nc, b.cols ());
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	4606 else
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	4607 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	4608 // Print spparms("spumoni") info if requested
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	4609 volatile int typ = mattype.type ();
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	4610 mattype.info ();
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	4611
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	4612 if (typ == MatrixType::Banded_Hermitian)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4613 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4614 octave_idx_type n_lower = mattype.nlower ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4615 octave_idx_type ldm = n_lower + 1;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4616
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4617 ComplexMatrix m_band (ldm, nc);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4618 Complex *tmp_data = m_band.fortran_vec ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4619
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4620 if (! mattype.is_dense ())
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4621 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4622 octave_idx_type ii = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4623
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4624 for (octave_idx_type j = 0; j < ldm; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4625 for (octave_idx_type i = 0; i < nc; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4626 tmp_data[ii++] = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4627 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4628
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4629 for (octave_idx_type j = 0; j < nc; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4630 for (octave_idx_type i = cidx(j); i < cidx(j+1); i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4631 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4632 octave_idx_type ri = ridx (i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4633 if (ri >= j)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4634 m_band(ri - j, j) = data(i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4635 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4636
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4637 // Calculate the norm of the matrix, for later use.
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4638 double anorm;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4639 if (calc_cond)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4640 anorm = m_band.abs().sum().row(0).max();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4641
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4642 char job = 'L';
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4643 F77_XFCN (zpbtrf, ZPBTRF, (F77_CONST_CHAR_ARG2 (&job, 1),
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4644 nr, n_lower, tmp_data, ldm, err
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4645 F77_CHAR_ARG_LEN (1)));
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4646
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4647 if (err != 0)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4648 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4649 rcond = 0.0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4650 mattype.mark_as_unsymmetric ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4651 typ = MatrixType::Banded;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4652 err = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4653 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4654 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4655 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4656 if (calc_cond)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4657 {
10350 12884915a8e4 merge MArray classes & improve Array interface Jaroslav Hajek <highegg@gmail.com> parents: 10314 diff changeset	4658 Array<Complex> z (2 * nr, 1);
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4659 Complex *pz = z.fortran_vec ();
10350 12884915a8e4 merge MArray classes & improve Array interface Jaroslav Hajek <highegg@gmail.com> parents: 10314 diff changeset	4660 Array<double> iz (nr, 1);
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4661 double *piz = iz.fortran_vec ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4662
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4663 F77_XFCN (zpbcon, ZPBCON,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4664 (F77_CONST_CHAR_ARG2 (&job, 1),
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4665 nr, n_lower, tmp_data, ldm,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4666 anorm, rcond, pz, piz, err
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4667 F77_CHAR_ARG_LEN (1)));
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4668
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4669 if (err != 0)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4670 err = -2;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4671
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4672 volatile double rcond_plus_one = rcond + 1.0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4673
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4674 if (rcond_plus_one == 1.0 \|\| xisnan (rcond))
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4675 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4676 err = -2;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4677
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4678 if (sing_handler)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4679 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4680 sing_handler (rcond);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4681 mattype.mark_as_rectangular ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4682 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4683 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4684 (*current_liboctave_error_handler)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4685 ("matrix singular to machine precision, rcond = %g",
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4686 rcond);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4687 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4688 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4689 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4690 rcond = 1.0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4691
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4692 if (err == 0)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4693 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4694 octave_idx_type b_nr = b.rows ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4695 octave_idx_type b_nc = b.cols ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4696 OCTAVE_LOCAL_BUFFER (Complex, Bx, b_nr);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4697
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4698 // Take a first guess that the number of non-zero terms
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4699 // will be as many as in b
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4700 volatile octave_idx_type x_nz = b.nnz ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4701 volatile octave_idx_type ii = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4702 retval = SparseComplexMatrix (b_nr, b_nc, x_nz);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4703
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4704 retval.xcidx(0) = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4705 for (volatile octave_idx_type j = 0; j < b_nc; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4706 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4707 for (octave_idx_type i = 0; i < b_nr; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4708 Bx[i] = b.elem (i, j);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4709
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4710 F77_XFCN (zpbtrs, ZPBTRS,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4711 (F77_CONST_CHAR_ARG2 (&job, 1),
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4712 nr, n_lower, 1, tmp_data,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4713 ldm, Bx, b_nr, err
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4714 F77_CHAR_ARG_LEN (1)));
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4715
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4716 if (err != 0)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4717 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4718 (*current_liboctave_error_handler)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4719 ("SparseComplexMatrix::solve solve failed");
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4720 err = -1;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4721 break;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4722 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4723
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4724 for (octave_idx_type i = 0; i < b_nr; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4725 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4726 Complex tmp = Bx[i];
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4727 if (tmp != 0.0)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4728 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4729 if (ii == x_nz)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4730 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4731 // Resize the sparse matrix
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4732 octave_idx_type sz = x_nz *
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4733 (b_nc - j) / b_nc;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4734 sz = (sz > 10 ? sz : 10) + x_nz;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4735 retval.change_capacity (sz);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4736 x_nz = sz;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4737 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4738 retval.xdata(ii) = tmp;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4739 retval.xridx(ii++) = i;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4740 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4741 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4742 retval.xcidx(j+1) = ii;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4743 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4744
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4745 retval.maybe_compress ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4746 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4747 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4748 }
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	4749
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	4750 if (typ == MatrixType::Banded)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4751 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4752 // Create the storage for the banded form of the sparse matrix
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4753 octave_idx_type n_upper = mattype.nupper ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4754 octave_idx_type n_lower = mattype.nlower ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4755 octave_idx_type ldm = n_upper + 2 * n_lower + 1;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4756
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4757 ComplexMatrix m_band (ldm, nc);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4758 Complex *tmp_data = m_band.fortran_vec ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4759
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4760 if (! mattype.is_dense ())
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4761 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4762 octave_idx_type ii = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4763
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4764 for (octave_idx_type j = 0; j < ldm; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4765 for (octave_idx_type i = 0; i < nc; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4766 tmp_data[ii++] = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4767 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4768
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4769 for (octave_idx_type j = 0; j < nc; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4770 for (octave_idx_type i = cidx(j); i < cidx(j+1); i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4771 m_band(ridx(i) - j + n_lower + n_upper, j) = data(i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4772
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4773 // Calculate the norm of the matrix, for later use.
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4774 double anorm;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4775 if (calc_cond)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4776 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4777 for (octave_idx_type j = 0; j < nr; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4778 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4779 double atmp = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4780 for (octave_idx_type i = cidx(j); i < cidx(j+1); i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4781 atmp += std::abs(data(i));
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4782 if (atmp > anorm)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4783 anorm = atmp;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4784 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4785 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4786
10350 12884915a8e4 merge MArray classes & improve Array interface Jaroslav Hajek <highegg@gmail.com> parents: 10314 diff changeset	4787 Array<octave_idx_type> ipvt (nr, 1);
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4788 octave_idx_type *pipvt = ipvt.fortran_vec ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4789
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4790 F77_XFCN (zgbtrf, ZGBTRF, (nr, nr, n_lower, n_upper, tmp_data,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4791 ldm, pipvt, err));
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4792
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4793 if (err != 0)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4794 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4795 rcond = 0.0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4796 err = -2;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4797
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4798 if (sing_handler)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4799 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4800 sing_handler (rcond);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4801 mattype.mark_as_rectangular ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4802 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4803 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4804 (*current_liboctave_error_handler)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4805 ("matrix singular to machine precision");
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4806
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4807 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4808 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4809 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4810 if (calc_cond)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4811 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4812 char job = '1';
10350 12884915a8e4 merge MArray classes & improve Array interface Jaroslav Hajek <highegg@gmail.com> parents: 10314 diff changeset	4813 Array<Complex> z (2 * nr, 1);
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4814 Complex *pz = z.fortran_vec ();
10350 12884915a8e4 merge MArray classes & improve Array interface Jaroslav Hajek <highegg@gmail.com> parents: 10314 diff changeset	4815 Array<double> iz (nr, 1);
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4816 double *piz = iz.fortran_vec ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4817
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4818 F77_XFCN (zgbcon, ZGBCON,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4819 (F77_CONST_CHAR_ARG2 (&job, 1),
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4820 nc, n_lower, n_upper, tmp_data, ldm, pipvt,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4821 anorm, rcond, pz, piz, err
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4822 F77_CHAR_ARG_LEN (1)));
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4823
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4824 if (err != 0)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4825 err = -2;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4826
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4827 volatile double rcond_plus_one = rcond + 1.0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4828
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4829 if (rcond_plus_one == 1.0 \|\| xisnan (rcond))
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4830 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4831 err = -2;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4832
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4833 if (sing_handler)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4834 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4835 sing_handler (rcond);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4836 mattype.mark_as_rectangular ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4837 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4838 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4839 (*current_liboctave_error_handler)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4840 ("matrix singular to machine precision, rcond = %g",
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4841 rcond);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4842 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4843 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4844 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4845 rcond = 1.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4846
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4847 if (err == 0)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4848 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4849 char job = 'N';
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4850 volatile octave_idx_type x_nz = b.nnz ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4851 octave_idx_type b_nc = b.cols ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4852 retval = SparseComplexMatrix (nr, b_nc, x_nz);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4853 retval.xcidx(0) = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4854 volatile octave_idx_type ii = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4855
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4856 OCTAVE_LOCAL_BUFFER (Complex, work, nr);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4857
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4858 for (volatile octave_idx_type j = 0; j < b_nc; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4859 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4860 for (octave_idx_type i = 0; i < nr; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4861 work[i] = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4862 for (octave_idx_type i = b.cidx(j);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4863 i < b.cidx(j+1); i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4864 work[b.ridx(i)] = b.data(i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4865
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4866 F77_XFCN (zgbtrs, ZGBTRS,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4867 (F77_CONST_CHAR_ARG2 (&job, 1),
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4868 nr, n_lower, n_upper, 1, tmp_data,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4869 ldm, pipvt, work, b.rows (), err
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4870 F77_CHAR_ARG_LEN (1)));
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4871
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4872 // Count non-zeros in work vector and adjust
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4873 // space in retval if needed
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4874 octave_idx_type new_nnz = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4875 for (octave_idx_type i = 0; i < nr; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4876 if (work[i] != 0.)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4877 new_nnz++;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4878
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4879 if (ii + new_nnz > x_nz)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4880 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4881 // Resize the sparse matrix
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4882 octave_idx_type sz = new_nnz * (b_nc - j) + x_nz;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4883 retval.change_capacity (sz);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4884 x_nz = sz;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4885 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4886
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4887 for (octave_idx_type i = 0; i < nr; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4888 if (work[i] != 0.)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4889 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4890 retval.xridx(ii) = i;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4891 retval.xdata(ii++) = work[i];
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4892 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4893 retval.xcidx(j+1) = ii;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4894 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4895
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4896 retval.maybe_compress ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4897 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4898 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4899 }
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	4900 else if (typ != MatrixType::Banded_Hermitian)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4901 (*current_liboctave_error_handler) ("incorrect matrix type");
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	4902 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	4903
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	4904 return retval;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	4905 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	4906
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	4907 ComplexMatrix
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	4908 SparseComplexMatrix::bsolve (MatrixType &mattype, const ComplexMatrix& b,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4909 octave_idx_type& err, double& rcond,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4910 solve_singularity_handler sing_handler,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4911 bool calc_cond) const
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	4912 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	4913 ComplexMatrix retval;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	4914
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	4915 octave_idx_type nr = rows ();
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	4916 octave_idx_type nc = cols ();
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	4917 err = 0;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	4918
6924 be176b7e110a [project @ 2007-09-25 19:08:19 by dbateman] dbateman parents: 6840 diff changeset	4919 if (nr != nc \|\| nr != b.rows ())
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	4920 (*current_liboctave_error_handler)
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	4921 ("matrix dimension mismatch solution of linear equations");
6924 be176b7e110a [project @ 2007-09-25 19:08:19 by dbateman] dbateman parents: 6840 diff changeset	4922 else if (nr == 0 \|\| b.cols () == 0)
be176b7e110a [project @ 2007-09-25 19:08:19 by dbateman] dbateman parents: 6840 diff changeset	4923 retval = ComplexMatrix (nc, b.cols (), Complex (0.0, 0.0));
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	4924 else
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	4925 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	4926 // Print spparms("spumoni") info if requested
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	4927 volatile int typ = mattype.type ();
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	4928 mattype.info ();
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	4929
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	4930 if (typ == MatrixType::Banded_Hermitian)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4931 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4932 octave_idx_type n_lower = mattype.nlower ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4933 octave_idx_type ldm = n_lower + 1;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4934
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4935 ComplexMatrix m_band (ldm, nc);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4936 Complex *tmp_data = m_band.fortran_vec ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4937
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4938 if (! mattype.is_dense ())
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4939 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4940 octave_idx_type ii = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4941
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4942 for (octave_idx_type j = 0; j < ldm; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4943 for (octave_idx_type i = 0; i < nc; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4944 tmp_data[ii++] = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4945 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4946
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4947 for (octave_idx_type j = 0; j < nc; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4948 for (octave_idx_type i = cidx(j); i < cidx(j+1); i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4949 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4950 octave_idx_type ri = ridx (i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4951 if (ri >= j)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4952 m_band(ri - j, j) = data(i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4953 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4954
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4955 // Calculate the norm of the matrix, for later use.
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4956 double anorm;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4957 if (calc_cond)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4958 anorm = m_band.abs().sum().row(0).max();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4959
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4960 char job = 'L';
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4961 F77_XFCN (zpbtrf, ZPBTRF, (F77_CONST_CHAR_ARG2 (&job, 1),
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4962 nr, n_lower, tmp_data, ldm, err
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4963 F77_CHAR_ARG_LEN (1)));
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4964
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4965 if (err != 0)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4966 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4967 // Matrix is not positive definite!! Fall through to
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4968 // unsymmetric banded solver.
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4969 rcond = 0.0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4970 mattype.mark_as_unsymmetric ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4971 typ = MatrixType::Banded;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4972 err = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4973 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4974 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4975 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4976 if (calc_cond)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4977 {
10350 12884915a8e4 merge MArray classes & improve Array interface Jaroslav Hajek <highegg@gmail.com> parents: 10314 diff changeset	4978 Array<Complex> z (2 * nr, 1);
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4979 Complex *pz = z.fortran_vec ();
10350 12884915a8e4 merge MArray classes & improve Array interface Jaroslav Hajek <highegg@gmail.com> parents: 10314 diff changeset	4980 Array<double> iz (nr, 1);
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4981 double *piz = iz.fortran_vec ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4982
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4983 F77_XFCN (zpbcon, ZPBCON,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4984 (F77_CONST_CHAR_ARG2 (&job, 1),
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4985 nr, n_lower, tmp_data, ldm,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4986 anorm, rcond, pz, piz, err
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4987 F77_CHAR_ARG_LEN (1)));
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4988
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4989 if (err != 0)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4990 err = -2;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4991
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4992 volatile double rcond_plus_one = rcond + 1.0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4993
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4994 if (rcond_plus_one == 1.0 \|\| xisnan (rcond))
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4995 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4996 err = -2;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4997
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4998 if (sing_handler)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	4999 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5000 sing_handler (rcond);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5001 mattype.mark_as_rectangular ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5002 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5003 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5004 (*current_liboctave_error_handler)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5005 ("matrix singular to machine precision, rcond = %g",
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5006 rcond);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5007 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5008 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5009 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5010 rcond = 1.0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5011
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5012 if (err == 0)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5013 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5014 octave_idx_type b_nr = b.rows ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5015 octave_idx_type b_nc = b.cols ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5016 retval = ComplexMatrix (b);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5017 Complex *result = retval.fortran_vec ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5018
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5019 F77_XFCN (zpbtrs, ZPBTRS,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5020 (F77_CONST_CHAR_ARG2 (&job, 1),
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5021 nr, n_lower, b_nc, tmp_data,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5022 ldm, result, b_nr, err
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5023 F77_CHAR_ARG_LEN (1)));
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5024
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5025 if (err != 0)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5026 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5027 (*current_liboctave_error_handler)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5028 ("SparseComplexMatrix::solve solve failed");
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5029 err = -1;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5030 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5031 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5032 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5033 }
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	5034
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	5035 if (typ == MatrixType::Banded)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5036 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5037 // Create the storage for the banded form of the sparse matrix
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5038 octave_idx_type n_upper = mattype.nupper ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5039 octave_idx_type n_lower = mattype.nlower ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5040 octave_idx_type ldm = n_upper + 2 * n_lower + 1;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5041
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5042 ComplexMatrix m_band (ldm, nc);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5043 Complex *tmp_data = m_band.fortran_vec ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5044
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5045 if (! mattype.is_dense ())
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5046 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5047 octave_idx_type ii = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5048
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5049 for (octave_idx_type j = 0; j < ldm; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5050 for (octave_idx_type i = 0; i < nc; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5051 tmp_data[ii++] = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5052 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5053
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5054 for (octave_idx_type j = 0; j < nc; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5055 for (octave_idx_type i = cidx(j); i < cidx(j+1); i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5056 m_band(ridx(i) - j + n_lower + n_upper, j) = data(i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5057
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5058 // Calculate the norm of the matrix, for later use.
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5059 double anorm;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5060 if (calc_cond)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5061 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5062 for (octave_idx_type j = 0; j < nr; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5063 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5064 double atmp = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5065 for (octave_idx_type i = cidx(j); i < cidx(j+1); i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5066 atmp += std::abs(data(i));
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5067 if (atmp > anorm)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5068 anorm = atmp;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5069 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5070 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5071
10350 12884915a8e4 merge MArray classes & improve Array interface Jaroslav Hajek <highegg@gmail.com> parents: 10314 diff changeset	5072 Array<octave_idx_type> ipvt (nr, 1);
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5073 octave_idx_type *pipvt = ipvt.fortran_vec ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5074
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5075 F77_XFCN (zgbtrf, ZGBTRF, (nr, nr, n_lower, n_upper, tmp_data,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5076 ldm, pipvt, err));
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5077
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5078 if (err != 0)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5079 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5080 err = -2;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5081 rcond = 0.0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5082
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5083 if (sing_handler)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5084 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5085 sing_handler (rcond);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5086 mattype.mark_as_rectangular ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5087 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5088 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5089 (*current_liboctave_error_handler)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5090 ("matrix singular to machine precision");
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5091 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5092 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5093 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5094 if (calc_cond)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5095 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5096 char job = '1';
10350 12884915a8e4 merge MArray classes & improve Array interface Jaroslav Hajek <highegg@gmail.com> parents: 10314 diff changeset	5097 Array<Complex> z (2 * nr, 1);
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5098 Complex *pz = z.fortran_vec ();
10350 12884915a8e4 merge MArray classes & improve Array interface Jaroslav Hajek <highegg@gmail.com> parents: 10314 diff changeset	5099 Array<double> iz (nr, 1);
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5100 double *piz = iz.fortran_vec ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5101
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5102 F77_XFCN (zgbcon, ZGBCON,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5103 (F77_CONST_CHAR_ARG2 (&job, 1),
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5104 nc, n_lower, n_upper, tmp_data, ldm, pipvt,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5105 anorm, rcond, pz, piz, err
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5106 F77_CHAR_ARG_LEN (1)));
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5107
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5108 if (err != 0)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5109 err = -2;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5110
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5111 volatile double rcond_plus_one = rcond + 1.0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5112
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5113 if (rcond_plus_one == 1.0 \|\| xisnan (rcond))
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5114 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5115 err = -2;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5116
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5117 if (sing_handler)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5118 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5119 sing_handler (rcond);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5120 mattype.mark_as_rectangular ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5121 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5122 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5123 (*current_liboctave_error_handler)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5124 ("matrix singular to machine precision, rcond = %g",
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5125 rcond);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5126 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5127 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5128 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5129 rcond = 1.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5130
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5131 if (err == 0)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5132 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5133 char job = 'N';
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5134 octave_idx_type b_nc = b.cols ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5135 retval = ComplexMatrix (b);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5136 Complex *result = retval.fortran_vec ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5137
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5138 F77_XFCN (zgbtrs, ZGBTRS,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5139 (F77_CONST_CHAR_ARG2 (&job, 1),
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5140 nr, n_lower, n_upper, b_nc, tmp_data,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5141 ldm, pipvt, result, b.rows (), err
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5142 F77_CHAR_ARG_LEN (1)));
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5143 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5144 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5145 }
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	5146 else if (typ != MatrixType::Banded_Hermitian)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5147 (*current_liboctave_error_handler) ("incorrect matrix type");
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	5148 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	5149
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	5150 return retval;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	5151 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	5152
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	5153 SparseComplexMatrix
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	5154 SparseComplexMatrix::bsolve (MatrixType &mattype, const SparseComplexMatrix& b,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5155 octave_idx_type& err, double& rcond,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5156 solve_singularity_handler sing_handler,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5157 bool calc_cond) const
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	5158 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	5159 SparseComplexMatrix retval;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	5160
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	5161 octave_idx_type nr = rows ();
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	5162 octave_idx_type nc = cols ();
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	5163 err = 0;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	5164
6924 be176b7e110a [project @ 2007-09-25 19:08:19 by dbateman] dbateman parents: 6840 diff changeset	5165 if (nr != nc \|\| nr != b.rows ())
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	5166 (*current_liboctave_error_handler)
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	5167 ("matrix dimension mismatch solution of linear equations");
6924 be176b7e110a [project @ 2007-09-25 19:08:19 by dbateman] dbateman parents: 6840 diff changeset	5168 else if (nr == 0 \|\| b.cols () == 0)
be176b7e110a [project @ 2007-09-25 19:08:19 by dbateman] dbateman parents: 6840 diff changeset	5169 retval = SparseComplexMatrix (nc, b.cols ());
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	5170 else
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	5171 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	5172 // Print spparms("spumoni") info if requested
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	5173 volatile int typ = mattype.type ();
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	5174 mattype.info ();
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	5175
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	5176 if (typ == MatrixType::Banded_Hermitian)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5177 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5178 octave_idx_type n_lower = mattype.nlower ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5179 octave_idx_type ldm = n_lower + 1;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5180
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5181 ComplexMatrix m_band (ldm, nc);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5182 Complex *tmp_data = m_band.fortran_vec ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5183
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5184 if (! mattype.is_dense ())
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5185 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5186 octave_idx_type ii = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5187
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5188 for (octave_idx_type j = 0; j < ldm; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5189 for (octave_idx_type i = 0; i < nc; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5190 tmp_data[ii++] = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5191 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5192
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5193 for (octave_idx_type j = 0; j < nc; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5194 for (octave_idx_type i = cidx(j); i < cidx(j+1); i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5195 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5196 octave_idx_type ri = ridx (i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5197 if (ri >= j)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5198 m_band(ri - j, j) = data(i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5199 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5200
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5201 // Calculate the norm of the matrix, for later use.
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5202 double anorm;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5203 if (calc_cond)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5204 anorm = m_band.abs().sum().row(0).max();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5205
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5206 char job = 'L';
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5207 F77_XFCN (zpbtrf, ZPBTRF, (F77_CONST_CHAR_ARG2 (&job, 1),
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5208 nr, n_lower, tmp_data, ldm, err
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5209 F77_CHAR_ARG_LEN (1)));
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5210
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5211 if (err != 0)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5212 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5213 // Matrix is not positive definite!! Fall through to
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5214 // unsymmetric banded solver.
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5215 mattype.mark_as_unsymmetric ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5216 typ = MatrixType::Banded;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5217
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5218 rcond = 0.0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5219 err = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5220 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5221 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5222 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5223 if (calc_cond)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5224 {
10350 12884915a8e4 merge MArray classes & improve Array interface Jaroslav Hajek <highegg@gmail.com> parents: 10314 diff changeset	5225 Array<Complex> z (2 * nr, 1);
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5226 Complex *pz = z.fortran_vec ();
10350 12884915a8e4 merge MArray classes & improve Array interface Jaroslav Hajek <highegg@gmail.com> parents: 10314 diff changeset	5227 Array<double> iz (nr, 1);
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5228 double *piz = iz.fortran_vec ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5229
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5230 F77_XFCN (zpbcon, ZPBCON,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5231 (F77_CONST_CHAR_ARG2 (&job, 1),
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5232 nr, n_lower, tmp_data, ldm,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5233 anorm, rcond, pz, piz, err
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5234 F77_CHAR_ARG_LEN (1)));
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5235
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5236 if (err != 0)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5237 err = -2;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5238
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5239 volatile double rcond_plus_one = rcond + 1.0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5240
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5241 if (rcond_plus_one == 1.0 \|\| xisnan (rcond))
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5242 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5243 err = -2;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5244
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5245 if (sing_handler)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5246 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5247 sing_handler (rcond);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5248 mattype.mark_as_rectangular ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5249 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5250 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5251 (*current_liboctave_error_handler)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5252 ("matrix singular to machine precision, rcond = %g",
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5253 rcond);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5254 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5255 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5256 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5257 rcond = 1.0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5258
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5259 if (err == 0)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5260 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5261 octave_idx_type b_nr = b.rows ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5262 octave_idx_type b_nc = b.cols ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5263 OCTAVE_LOCAL_BUFFER (Complex, Bx, b_nr);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5264
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5265 // Take a first guess that the number of non-zero terms
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5266 // will be as many as in b
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5267 volatile octave_idx_type x_nz = b.nnz ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5268 volatile octave_idx_type ii = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5269 retval = SparseComplexMatrix (b_nr, b_nc, x_nz);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5270
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5271 retval.xcidx(0) = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5272 for (volatile octave_idx_type j = 0; j < b_nc; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5273 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5274
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5275 for (octave_idx_type i = 0; i < b_nr; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5276 Bx[i] = b (i,j);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5277
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5278 F77_XFCN (zpbtrs, ZPBTRS,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5279 (F77_CONST_CHAR_ARG2 (&job, 1),
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5280 nr, n_lower, 1, tmp_data,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5281 ldm, Bx, b_nr, err
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5282 F77_CHAR_ARG_LEN (1)));
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5283
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5284 if (err != 0)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5285 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5286 (*current_liboctave_error_handler)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5287 ("SparseMatrix::solve solve failed");
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5288 err = -1;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5289 break;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5290 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5291
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5292 // Count non-zeros in work vector and adjust
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5293 // space in retval if needed
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5294 octave_idx_type new_nnz = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5295 for (octave_idx_type i = 0; i < nr; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5296 if (Bx[i] != 0.)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5297 new_nnz++;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5298
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5299 if (ii + new_nnz > x_nz)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5300 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5301 // Resize the sparse matrix
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5302 octave_idx_type sz = new_nnz * (b_nc - j) + x_nz;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5303 retval.change_capacity (sz);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5304 x_nz = sz;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5305 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5306
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5307 for (octave_idx_type i = 0; i < nr; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5308 if (Bx[i] != 0.)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5309 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5310 retval.xridx(ii) = i;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5311 retval.xdata(ii++) = Bx[i];
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5312 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5313
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5314 retval.xcidx(j+1) = ii;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5315 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5316
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5317 retval.maybe_compress ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5318 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5319 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5320 }
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	5321
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	5322 if (typ == MatrixType::Banded)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5323 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5324 // Create the storage for the banded form of the sparse matrix
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5325 octave_idx_type n_upper = mattype.nupper ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5326 octave_idx_type n_lower = mattype.nlower ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5327 octave_idx_type ldm = n_upper + 2 * n_lower + 1;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5328
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5329 ComplexMatrix m_band (ldm, nc);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5330 Complex *tmp_data = m_band.fortran_vec ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5331
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5332 if (! mattype.is_dense ())
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5333 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5334 octave_idx_type ii = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5335
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5336 for (octave_idx_type j = 0; j < ldm; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5337 for (octave_idx_type i = 0; i < nc; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5338 tmp_data[ii++] = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5339 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5340
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5341 for (octave_idx_type j = 0; j < nc; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5342 for (octave_idx_type i = cidx(j); i < cidx(j+1); i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5343 m_band(ridx(i) - j + n_lower + n_upper, j) = data(i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5344
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5345 // Calculate the norm of the matrix, for later use.
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5346 double anorm;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5347 if (calc_cond)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5348 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5349 for (octave_idx_type j = 0; j < nr; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5350 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5351 double atmp = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5352 for (octave_idx_type i = cidx(j); i < cidx(j+1); i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5353 atmp += std::abs(data(i));
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5354 if (atmp > anorm)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5355 anorm = atmp;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5356 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5357 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5358
10350 12884915a8e4 merge MArray classes & improve Array interface Jaroslav Hajek <highegg@gmail.com> parents: 10314 diff changeset	5359 Array<octave_idx_type> ipvt (nr, 1);
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5360 octave_idx_type *pipvt = ipvt.fortran_vec ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5361
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5362 F77_XFCN (zgbtrf, ZGBTRF, (nr, nr, n_lower, n_upper, tmp_data,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5363 ldm, pipvt, err));
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5364
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5365 if (err != 0)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5366 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5367 err = -2;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5368 rcond = 0.0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5369
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5370 if (sing_handler)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5371 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5372 sing_handler (rcond);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5373 mattype.mark_as_rectangular ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5374 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5375 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5376 (*current_liboctave_error_handler)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5377 ("matrix singular to machine precision");
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5378
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5379 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5380 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5381 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5382 if (calc_cond)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5383 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5384 char job = '1';
10350 12884915a8e4 merge MArray classes & improve Array interface Jaroslav Hajek <highegg@gmail.com> parents: 10314 diff changeset	5385 Array<Complex> z (2 * nr, 1);
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5386 Complex *pz = z.fortran_vec ();
10350 12884915a8e4 merge MArray classes & improve Array interface Jaroslav Hajek <highegg@gmail.com> parents: 10314 diff changeset	5387 Array<double> iz (nr, 1);
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5388 double *piz = iz.fortran_vec ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5389
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5390 F77_XFCN (zgbcon, ZGBCON,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5391 (F77_CONST_CHAR_ARG2 (&job, 1),
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5392 nc, n_lower, n_upper, tmp_data, ldm, pipvt,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5393 anorm, rcond, pz, piz, err
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5394 F77_CHAR_ARG_LEN (1)));
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5395
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5396 if (err != 0)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5397 err = -2;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5398
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5399 volatile double rcond_plus_one = rcond + 1.0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5400
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5401 if (rcond_plus_one == 1.0 \|\| xisnan (rcond))
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5402 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5403 err = -2;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5404
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5405 if (sing_handler)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5406 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5407 sing_handler (rcond);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5408 mattype.mark_as_rectangular ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5409 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5410 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5411 (*current_liboctave_error_handler)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5412 ("matrix singular to machine precision, rcond = %g",
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5413 rcond);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5414 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5415 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5416 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5417 rcond = 1.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5418
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5419 if (err == 0)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5420 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5421 char job = 'N';
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5422 volatile octave_idx_type x_nz = b.nnz ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5423 octave_idx_type b_nc = b.cols ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5424 retval = SparseComplexMatrix (nr, b_nc, x_nz);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5425 retval.xcidx(0) = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5426 volatile octave_idx_type ii = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5427
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5428 OCTAVE_LOCAL_BUFFER (Complex, Bx, nr);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5429
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5430 for (volatile octave_idx_type j = 0; j < b_nc; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5431 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5432 for (octave_idx_type i = 0; i < nr; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5433 Bx[i] = 0.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5434
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5435 for (octave_idx_type i = b.cidx(j);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5436 i < b.cidx(j+1); i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5437 Bx[b.ridx(i)] = b.data(i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5438
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5439 F77_XFCN (zgbtrs, ZGBTRS,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5440 (F77_CONST_CHAR_ARG2 (&job, 1),
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5441 nr, n_lower, n_upper, 1, tmp_data,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5442 ldm, pipvt, Bx, b.rows (), err
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5443 F77_CHAR_ARG_LEN (1)));
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5444
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5445 // Count non-zeros in work vector and adjust
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5446 // space in retval if needed
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5447 octave_idx_type new_nnz = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5448 for (octave_idx_type i = 0; i < nr; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5449 if (Bx[i] != 0.)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5450 new_nnz++;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5451
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5452 if (ii + new_nnz > x_nz)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5453 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5454 // Resize the sparse matrix
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5455 octave_idx_type sz = new_nnz * (b_nc - j) + x_nz;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5456 retval.change_capacity (sz);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5457 x_nz = sz;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5458 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5459
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5460 for (octave_idx_type i = 0; i < nr; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5461 if (Bx[i] != 0.)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5462 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5463 retval.xridx(ii) = i;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5464 retval.xdata(ii++) = Bx[i];
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5465 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5466 retval.xcidx(j+1) = ii;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5467 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5468
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5469 retval.maybe_compress ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5470 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5471 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5472 }
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	5473 else if (typ != MatrixType::Banded_Hermitian)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5474 (*current_liboctave_error_handler) ("incorrect matrix type");
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	5475 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	5476
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	5477 return retval;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	5478 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	5479
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	5480 void *
5681 233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	5481 SparseComplexMatrix::factorize (octave_idx_type& err, double &rcond,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5482 Matrix &Control, Matrix &Info,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5483 solve_singularity_handler sing_handler,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5484 bool calc_cond) const
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	5485 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	5486 // The return values
5404 b91241999ba6 [project @ 2005-07-07 17:05:19 by jwe] jwe parents: 5389 diff changeset	5487 void *Numeric = 0;
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	5488 err = 0;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	5489
5203 dbeafbc0ff64 [project @ 2005-03-15 00:58:55 by jwe] jwe parents: 5164 diff changeset	5490 #ifdef HAVE_UMFPACK
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	5491 // Setup the control parameters
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	5492 Control = Matrix (UMFPACK_CONTROL, 1);
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	5493 double *control = Control.fortran_vec ();
5322 22994a5730f9 [project @ 2005-04-29 13:04:24 by dbateman] dbateman parents: 5307 diff changeset	5494 UMFPACK_ZNAME (defaults) (control);
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	5495
5893 d73ffe42f2c8 [project @ 2006-07-16 07:48:19 by jwe] jwe parents: 5877 diff changeset	5496 double tmp = octave_sparse_params::get_key ("spumoni");
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	5497 if (!xisnan (tmp))
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	5498 Control (UMFPACK_PRL) = tmp;
5893 d73ffe42f2c8 [project @ 2006-07-16 07:48:19 by jwe] jwe parents: 5877 diff changeset	5499 tmp = octave_sparse_params::get_key ("piv_tol");
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	5500 if (!xisnan (tmp))
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	5501 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	5502 Control (UMFPACK_SYM_PIVOT_TOLERANCE) = tmp;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	5503 Control (UMFPACK_PIVOT_TOLERANCE) = tmp;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	5504 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	5505
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	5506 // Set whether we are allowed to modify Q or not
5893 d73ffe42f2c8 [project @ 2006-07-16 07:48:19 by jwe] jwe parents: 5877 diff changeset	5507 tmp = octave_sparse_params::get_key ("autoamd");
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	5508 if (!xisnan (tmp))
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	5509 Control (UMFPACK_FIXQ) = tmp;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	5510
5322 22994a5730f9 [project @ 2005-04-29 13:04:24 by dbateman] dbateman parents: 5307 diff changeset	5511 UMFPACK_ZNAME (report_control) (control);
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	5512
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	5513 const octave_idx_type *Ap = cidx ();
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	5514 const octave_idx_type *Ai = ridx ();
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	5515 const Complex *Ax = data ();
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	5516 octave_idx_type nr = rows ();
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	5517 octave_idx_type nc = cols ();
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	5518
5322 22994a5730f9 [project @ 2005-04-29 13:04:24 by dbateman] dbateman parents: 5307 diff changeset	5519 UMFPACK_ZNAME (report_matrix) (nr, nc, Ap, Ai,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5520 reinterpret_cast<const double *> (Ax),
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5521 0, 1, control);
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	5522
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	5523 void *Symbolic;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	5524 Info = Matrix (1, UMFPACK_INFO);
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	5525 double *info = Info.fortran_vec ();
5322 22994a5730f9 [project @ 2005-04-29 13:04:24 by dbateman] dbateman parents: 5307 diff changeset	5526 int status = UMFPACK_ZNAME (qsymbolic) (nr, nc, Ap, Ai,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5527 reinterpret_cast<const double *> (Ax),
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5528 0, 0, &Symbolic, control, info);
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	5529
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	5530 if (status < 0)
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	5531 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	5532 (*current_liboctave_error_handler)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5533 ("SparseComplexMatrix::solve symbolic factorization failed");
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	5534 err = -1;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	5535
5322 22994a5730f9 [project @ 2005-04-29 13:04:24 by dbateman] dbateman parents: 5307 diff changeset	5536 UMFPACK_ZNAME (report_status) (control, status);
22994a5730f9 [project @ 2005-04-29 13:04:24 by dbateman] dbateman parents: 5307 diff changeset	5537 UMFPACK_ZNAME (report_info) (control, info);
22994a5730f9 [project @ 2005-04-29 13:04:24 by dbateman] dbateman parents: 5307 diff changeset	5538
22994a5730f9 [project @ 2005-04-29 13:04:24 by dbateman] dbateman parents: 5307 diff changeset	5539 UMFPACK_ZNAME (free_symbolic) (&Symbolic) ;
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	5540 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	5541 else
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	5542 {
5322 22994a5730f9 [project @ 2005-04-29 13:04:24 by dbateman] dbateman parents: 5307 diff changeset	5543 UMFPACK_ZNAME (report_symbolic) (Symbolic, control);
22994a5730f9 [project @ 2005-04-29 13:04:24 by dbateman] dbateman parents: 5307 diff changeset	5544
22994a5730f9 [project @ 2005-04-29 13:04:24 by dbateman] dbateman parents: 5307 diff changeset	5545 status = UMFPACK_ZNAME (numeric) (Ap, Ai,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5546 reinterpret_cast<const double *> (Ax), 0,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5547 Symbolic, &Numeric, control, info) ;
5322 22994a5730f9 [project @ 2005-04-29 13:04:24 by dbateman] dbateman parents: 5307 diff changeset	5548 UMFPACK_ZNAME (free_symbolic) (&Symbolic) ;
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	5549
5681 233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	5550 if (calc_cond)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5551 rcond = Info (UMFPACK_RCOND);
5681 233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	5552 else
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5553 rcond = 1.;
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	5554 volatile double rcond_plus_one = rcond + 1.0;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	5555
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	5556 if (status == UMFPACK_WARNING_singular_matrix \|\|
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5557 rcond_plus_one == 1.0 \|\| xisnan (rcond))
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5558 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5559 UMFPACK_ZNAME (report_numeric) (Numeric, control);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5560
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5561 err = -2;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5562
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5563 if (sing_handler)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5564 sing_handler (rcond);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5565 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5566 (*current_liboctave_error_handler)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5567 ("SparseComplexMatrix::solve matrix singular to machine precision, rcond = %g",
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5568 rcond);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5569
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5570 }
5610 9761b7d24e9e [project @ 2006-02-09 09:12:02 by dbateman] dbateman parents: 5604 diff changeset	5571 else if (status < 0)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5572 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5573 (*current_liboctave_error_handler)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5574 ("SparseComplexMatrix::solve numeric factorization failed");
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5575
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5576 UMFPACK_ZNAME (report_status) (control, status);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5577 UMFPACK_ZNAME (report_info) (control, info);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5578
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5579 err = -1;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5580 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5581 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5582 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5583 UMFPACK_ZNAME (report_numeric) (Numeric, control);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5584 }
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	5585 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	5586
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	5587 if (err != 0)
5322 22994a5730f9 [project @ 2005-04-29 13:04:24 by dbateman] dbateman parents: 5307 diff changeset	5588 UMFPACK_ZNAME (free_numeric) (&Numeric);
5203 dbeafbc0ff64 [project @ 2005-03-15 00:58:55 by jwe] jwe parents: 5164 diff changeset	5589 #else
dbeafbc0ff64 [project @ 2005-03-15 00:58:55 by jwe] jwe parents: 5164 diff changeset	5590 (*current_liboctave_error_handler) ("UMFPACK not installed");
dbeafbc0ff64 [project @ 2005-03-15 00:58:55 by jwe] jwe parents: 5164 diff changeset	5591 #endif
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	5592
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	5593 return Numeric;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	5594 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	5595
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	5596 ComplexMatrix
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	5597 SparseComplexMatrix::fsolve (MatrixType &mattype, const Matrix& b,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5598 octave_idx_type& err, double& rcond,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5599 solve_singularity_handler sing_handler,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5600 bool calc_cond) const
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	5601 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	5602 ComplexMatrix retval;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	5603
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	5604 octave_idx_type nr = rows ();
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	5605 octave_idx_type nc = cols ();
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	5606 err = 0;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	5607
6924 be176b7e110a [project @ 2007-09-25 19:08:19 by dbateman] dbateman parents: 6840 diff changeset	5608 if (nr != nc \|\| nr != b.rows ())
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	5609 (*current_liboctave_error_handler)
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	5610 ("matrix dimension mismatch solution of linear equations");
6924 be176b7e110a [project @ 2007-09-25 19:08:19 by dbateman] dbateman parents: 6840 diff changeset	5611 else if (nr == 0 \|\| b.cols () == 0)
be176b7e110a [project @ 2007-09-25 19:08:19 by dbateman] dbateman parents: 6840 diff changeset	5612 retval = ComplexMatrix (nc, b.cols (), Complex (0.0, 0.0));
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	5613 else
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	5614 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	5615 // Print spparms("spumoni") info if requested
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	5616 volatile int typ = mattype.type ();
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	5617 mattype.info ();
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	5618
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	5619 if (typ == MatrixType::Hermitian)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5620 {
5506 b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: 5451 diff changeset	5621 #ifdef HAVE_CHOLMOD
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5622 cholmod_common Common;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5623 cholmod_common *cm = &Common;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5624
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5625 // Setup initial parameters
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5626 CHOLMOD_NAME(start) (cm);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5627 cm->prefer_zomplex = false;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5628
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5629 double spu = octave_sparse_params::get_key ("spumoni");
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5630 if (spu == 0.)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5631 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5632 cm->print = -1;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5633 cm->print_function = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5634 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5635 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5636 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5637 cm->print = static_cast<int> (spu) + 2;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5638 cm->print_function =&SparseCholPrint;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5639 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5640
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5641 cm->error_handler = &SparseCholError;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5642 cm->complex_divide = CHOLMOD_NAME(divcomplex);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5643 cm->hypotenuse = CHOLMOD_NAME(hypot);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5644
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5645 cm->final_ll = true;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5646
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5647 cholmod_sparse Astore;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5648 cholmod_sparse *A = &Astore;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5649 double dummy;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5650 A->nrow = nr;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5651 A->ncol = nc;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5652
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5653 A->p = cidx();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5654 A->i = ridx();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5655 A->nzmax = nnz();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5656 A->packed = true;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5657 A->sorted = true;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5658 A->nz = 0;
5506 b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: 5451 diff changeset	5659 #ifdef IDX_TYPE_LONG
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5660 A->itype = CHOLMOD_LONG;
5506 b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: 5451 diff changeset	5661 #else
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5662 A->itype = CHOLMOD_INT;
5506 b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: 5451 diff changeset	5663 #endif
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5664 A->dtype = CHOLMOD_DOUBLE;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5665 A->stype = 1;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5666 A->xtype = CHOLMOD_COMPLEX;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5667
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5668 if (nr < 1)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5669 A->x = &dummy;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5670 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5671 A->x = data();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5672
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5673 cholmod_dense Bstore;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5674 cholmod_dense *B = &Bstore;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5675 B->nrow = b.rows();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5676 B->ncol = b.cols();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5677 B->d = B->nrow;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5678 B->nzmax = B->nrow * B->ncol;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5679 B->dtype = CHOLMOD_DOUBLE;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5680 B->xtype = CHOLMOD_REAL;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5681 if (nc < 1 \|\| b.cols() < 1)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5682 B->x = &dummy;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5683 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5684 // We won't alter it, honest :-)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5685 B->x = const_cast<double *>(b.fortran_vec());
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5686
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5687 cholmod_factor *L;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5688 BEGIN_INTERRUPT_IMMEDIATELY_IN_FOREIGN_CODE;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5689 L = CHOLMOD_NAME(analyze) (A, cm);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5690 CHOLMOD_NAME(factorize) (A, L, cm);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5691 if (calc_cond)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5692 rcond = CHOLMOD_NAME(rcond)(L, cm);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5693 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5694 rcond = 1.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5695 END_INTERRUPT_IMMEDIATELY_IN_FOREIGN_CODE;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5696
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5697 if (rcond == 0.0)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5698 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5699 // Either its indefinite or singular. Try UMFPACK
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5700 mattype.mark_as_unsymmetric ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5701 typ = MatrixType::Full;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5702 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5703 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5704 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5705 volatile double rcond_plus_one = rcond + 1.0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5706
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5707 if (rcond_plus_one == 1.0 \|\| xisnan (rcond))
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5708 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5709 err = -2;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5710
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5711 if (sing_handler)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5712 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5713 sing_handler (rcond);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5714 mattype.mark_as_rectangular ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5715 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5716 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5717 (*current_liboctave_error_handler)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5718 ("SparseMatrix::solve matrix singular to machine precision, rcond = %g",
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5719 rcond);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5720
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5721 return retval;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5722 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5723
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5724 cholmod_dense *X;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5725 BEGIN_INTERRUPT_IMMEDIATELY_IN_FOREIGN_CODE;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5726 X = CHOLMOD_NAME(solve) (CHOLMOD_A, L, B, cm);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5727 END_INTERRUPT_IMMEDIATELY_IN_FOREIGN_CODE;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5728
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5729 retval.resize (b.rows (), b.cols());
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5730 for (octave_idx_type j = 0; j < b.cols(); j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5731 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5732 octave_idx_type jr = j * b.rows();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5733 for (octave_idx_type i = 0; i < b.rows(); i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5734 retval.xelem(i,j) = static_cast<Complex *>(X->x)[jr + i];
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5735 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5736
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5737 BEGIN_INTERRUPT_IMMEDIATELY_IN_FOREIGN_CODE;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5738 CHOLMOD_NAME(free_dense) (&X, cm);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5739 CHOLMOD_NAME(free_factor) (&L, cm);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5740 CHOLMOD_NAME(finish) (cm);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5741 static char tmp[] = " ";
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5742 CHOLMOD_NAME(print_common) (tmp, cm);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5743 END_INTERRUPT_IMMEDIATELY_IN_FOREIGN_CODE;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5744 }
5506 b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: 5451 diff changeset	5745 #else
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5746 (*current_liboctave_warning_handler)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5747 ("CHOLMOD not installed");
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5748
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5749 mattype.mark_as_unsymmetric ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5750 typ = MatrixType::Full;
5506 b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: 5451 diff changeset	5751 #endif
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5752 }
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	5753
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	5754 if (typ == MatrixType::Full)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5755 {
5203 dbeafbc0ff64 [project @ 2005-03-15 00:58:55 by jwe] jwe parents: 5164 diff changeset	5756 #ifdef HAVE_UMFPACK
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5757 Matrix Control, Info;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5758 void *Numeric = factorize (err, rcond, Control, Info,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5759 sing_handler, calc_cond);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5760
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5761 if (err == 0)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5762 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5763 octave_idx_type b_nr = b.rows ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5764 octave_idx_type b_nc = b.cols ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5765 int status = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5766 double *control = Control.fortran_vec ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5767 double *info = Info.fortran_vec ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5768 const octave_idx_type *Ap = cidx ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5769 const octave_idx_type *Ai = ridx ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5770 const Complex *Ax = data ();
5203 dbeafbc0ff64 [project @ 2005-03-15 00:58:55 by jwe] jwe parents: 5164 diff changeset	5771 #ifdef UMFPACK_SEPARATE_SPLIT
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5772 const double *Bx = b.fortran_vec ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5773 OCTAVE_LOCAL_BUFFER (double, Bz, b_nr);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5774 for (octave_idx_type i = 0; i < b_nr; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5775 Bz[i] = 0.;
5203 dbeafbc0ff64 [project @ 2005-03-15 00:58:55 by jwe] jwe parents: 5164 diff changeset	5776 #else
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5777 OCTAVE_LOCAL_BUFFER (Complex, Bz, b_nr);
5203 dbeafbc0ff64 [project @ 2005-03-15 00:58:55 by jwe] jwe parents: 5164 diff changeset	5778 #endif
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5779 retval.resize (b_nr, b_nc);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5780 Complex *Xx = retval.fortran_vec ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5781
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5782 for (octave_idx_type j = 0, iidx = 0; j < b_nc; j++, iidx += b_nr)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5783 {
5203 dbeafbc0ff64 [project @ 2005-03-15 00:58:55 by jwe] jwe parents: 5164 diff changeset	5784 #ifdef UMFPACK_SEPARATE_SPLIT
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5785 status = UMFPACK_ZNAME (solve) (UMFPACK_A, Ap,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5786 Ai,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5787 reinterpret_cast<const double *> (Ax),
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5788 0,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5789 reinterpret_cast<double *> (&Xx[iidx]),
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5790 0,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5791 &Bx[iidx], Bz, Numeric,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5792 control, info);
5203 dbeafbc0ff64 [project @ 2005-03-15 00:58:55 by jwe] jwe parents: 5164 diff changeset	5793 #else
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5794 for (octave_idx_type i = 0; i < b_nr; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5795 Bz[i] = b.elem (i, j);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5796
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5797 status = UMFPACK_ZNAME (solve) (UMFPACK_A, Ap,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5798 Ai,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5799 reinterpret_cast<const double *> (Ax),
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5800 0,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5801 reinterpret_cast<double *> (&Xx[iidx]),
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5802 0,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5803 reinterpret_cast<const double *> (Bz),
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5804 0, Numeric,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5805 control, info);
5203 dbeafbc0ff64 [project @ 2005-03-15 00:58:55 by jwe] jwe parents: 5164 diff changeset	5806 #endif
dbeafbc0ff64 [project @ 2005-03-15 00:58:55 by jwe] jwe parents: 5164 diff changeset	5807
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5808 if (status < 0)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5809 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5810 (*current_liboctave_error_handler)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5811 ("SparseComplexMatrix::solve solve failed");
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5812
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5813 UMFPACK_ZNAME (report_status) (control, status);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5814
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5815 err = -1;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5816
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5817 break;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5818 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5819 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5820
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5821 UMFPACK_ZNAME (report_info) (control, info);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5822
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5823 UMFPACK_ZNAME (free_numeric) (&Numeric);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5824 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5825 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5826 mattype.mark_as_rectangular ();
5681 233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	5827
5203 dbeafbc0ff64 [project @ 2005-03-15 00:58:55 by jwe] jwe parents: 5164 diff changeset	5828 #else
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5829 (*current_liboctave_error_handler) ("UMFPACK not installed");
5203 dbeafbc0ff64 [project @ 2005-03-15 00:58:55 by jwe] jwe parents: 5164 diff changeset	5830 #endif
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5831 }
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	5832 else if (typ != MatrixType::Hermitian)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5833 (*current_liboctave_error_handler) ("incorrect matrix type");
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	5834 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	5835
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	5836 return retval;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	5837 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	5838
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	5839 SparseComplexMatrix
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	5840 SparseComplexMatrix::fsolve (MatrixType &mattype, const SparseMatrix& b,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5841 octave_idx_type& err, double& rcond,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5842 solve_singularity_handler sing_handler,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5843 bool calc_cond) const
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	5844 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	5845 SparseComplexMatrix retval;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	5846
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	5847 octave_idx_type nr = rows ();
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	5848 octave_idx_type nc = cols ();
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	5849 err = 0;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	5850
6924 be176b7e110a [project @ 2007-09-25 19:08:19 by dbateman] dbateman parents: 6840 diff changeset	5851 if (nr != nc \|\| nr != b.rows ())
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	5852 (*current_liboctave_error_handler)
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	5853 ("matrix dimension mismatch solution of linear equations");
6924 be176b7e110a [project @ 2007-09-25 19:08:19 by dbateman] dbateman parents: 6840 diff changeset	5854 else if (nr == 0 \|\| b.cols () == 0)
be176b7e110a [project @ 2007-09-25 19:08:19 by dbateman] dbateman parents: 6840 diff changeset	5855 retval = SparseComplexMatrix (nc, b.cols ());
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	5856 else
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	5857 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	5858 // Print spparms("spumoni") info if requested
5506 b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: 5451 diff changeset	5859 volatile int typ = mattype.type ();
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	5860 mattype.info ();
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	5861
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	5862 if (typ == MatrixType::Hermitian)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5863 {
5506 b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: 5451 diff changeset	5864 #ifdef HAVE_CHOLMOD
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5865 cholmod_common Common;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5866 cholmod_common *cm = &Common;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5867
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5868 // Setup initial parameters
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5869 CHOLMOD_NAME(start) (cm);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5870 cm->prefer_zomplex = false;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5871
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5872 double spu = octave_sparse_params::get_key ("spumoni");
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5873 if (spu == 0.)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5874 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5875 cm->print = -1;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5876 cm->print_function = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5877 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5878 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5879 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5880 cm->print = static_cast<int> (spu) + 2;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5881 cm->print_function =&SparseCholPrint;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5882 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5883
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5884 cm->error_handler = &SparseCholError;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5885 cm->complex_divide = CHOLMOD_NAME(divcomplex);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5886 cm->hypotenuse = CHOLMOD_NAME(hypot);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5887
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5888 cm->final_ll = true;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5889
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5890 cholmod_sparse Astore;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5891 cholmod_sparse *A = &Astore;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5892 double dummy;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5893 A->nrow = nr;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5894 A->ncol = nc;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5895
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5896 A->p = cidx();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5897 A->i = ridx();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5898 A->nzmax = nnz();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5899 A->packed = true;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5900 A->sorted = true;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5901 A->nz = 0;
5506 b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: 5451 diff changeset	5902 #ifdef IDX_TYPE_LONG
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5903 A->itype = CHOLMOD_LONG;
5506 b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: 5451 diff changeset	5904 #else
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5905 A->itype = CHOLMOD_INT;
5506 b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: 5451 diff changeset	5906 #endif
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5907 A->dtype = CHOLMOD_DOUBLE;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5908 A->stype = 1;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5909 A->xtype = CHOLMOD_COMPLEX;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5910
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5911 if (nr < 1)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5912 A->x = &dummy;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5913 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5914 A->x = data();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5915
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5916 cholmod_sparse Bstore;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5917 cholmod_sparse *B = &Bstore;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5918 B->nrow = b.rows();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5919 B->ncol = b.cols();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5920 B->p = b.cidx();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5921 B->i = b.ridx();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5922 B->nzmax = b.nnz();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5923 B->packed = true;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5924 B->sorted = true;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5925 B->nz = 0;
5506 b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: 5451 diff changeset	5926 #ifdef IDX_TYPE_LONG
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5927 B->itype = CHOLMOD_LONG;
5506 b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: 5451 diff changeset	5928 #else
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5929 B->itype = CHOLMOD_INT;
5506 b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: 5451 diff changeset	5930 #endif
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5931 B->dtype = CHOLMOD_DOUBLE;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5932 B->stype = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5933 B->xtype = CHOLMOD_REAL;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5934
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5935 if (b.rows() < 1 \|\| b.cols() < 1)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5936 B->x = &dummy;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5937 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5938 B->x = b.data();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5939
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5940 cholmod_factor *L;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5941 BEGIN_INTERRUPT_IMMEDIATELY_IN_FOREIGN_CODE;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5942 L = CHOLMOD_NAME(analyze) (A, cm);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5943 CHOLMOD_NAME(factorize) (A, L, cm);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5944 if (calc_cond)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5945 rcond = CHOLMOD_NAME(rcond)(L, cm);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5946 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5947 rcond = 1.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5948 END_INTERRUPT_IMMEDIATELY_IN_FOREIGN_CODE;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5949
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5950 if (rcond == 0.0)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5951 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5952 // Either its indefinite or singular. Try UMFPACK
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5953 mattype.mark_as_unsymmetric ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5954 typ = MatrixType::Full;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5955 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5956 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5957 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5958 volatile double rcond_plus_one = rcond + 1.0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5959
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5960 if (rcond_plus_one == 1.0 \|\| xisnan (rcond))
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5961 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5962 err = -2;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5963
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5964 if (sing_handler)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5965 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5966 sing_handler (rcond);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5967 mattype.mark_as_rectangular ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5968 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5969 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5970 (*current_liboctave_error_handler)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5971 ("SparseMatrix::solve matrix singular to machine precision, rcond = %g",
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5972 rcond);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5973
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5974 return retval;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5975 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5976
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5977 cholmod_sparse *X;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5978 BEGIN_INTERRUPT_IMMEDIATELY_IN_FOREIGN_CODE;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5979 X = CHOLMOD_NAME(spsolve) (CHOLMOD_A, L, B, cm);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5980 END_INTERRUPT_IMMEDIATELY_IN_FOREIGN_CODE;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5981
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5982 retval = SparseComplexMatrix
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5983 (static_cast<octave_idx_type>(X->nrow),
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5984 static_cast<octave_idx_type>(X->ncol),
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5985 static_cast<octave_idx_type>(X->nzmax));
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5986 for (octave_idx_type j = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5987 j <= static_cast<octave_idx_type>(X->ncol); j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5988 retval.xcidx(j) = static_cast<octave_idx_type *>(X->p)[j];
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5989 for (octave_idx_type j = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5990 j < static_cast<octave_idx_type>(X->nzmax); j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5991 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5992 retval.xridx(j) = static_cast<octave_idx_type *>(X->i)[j];
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5993 retval.xdata(j) = static_cast<Complex *>(X->x)[j];
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5994 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5995
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5996 BEGIN_INTERRUPT_IMMEDIATELY_IN_FOREIGN_CODE;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5997 CHOLMOD_NAME(free_sparse) (&X, cm);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5998 CHOLMOD_NAME(free_factor) (&L, cm);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	5999 CHOLMOD_NAME(finish) (cm);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6000 static char tmp[] = " ";
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6001 CHOLMOD_NAME(print_common) (tmp, cm);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6002 END_INTERRUPT_IMMEDIATELY_IN_FOREIGN_CODE;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6003 }
5506 b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: 5451 diff changeset	6004 #else
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6005 (*current_liboctave_warning_handler)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6006 ("CHOLMOD not installed");
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6007
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6008 mattype.mark_as_unsymmetric ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6009 typ = MatrixType::Full;
5506 b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: 5451 diff changeset	6010 #endif
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6011 }
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6012
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	6013 if (typ == MatrixType::Full)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6014 {
5203 dbeafbc0ff64 [project @ 2005-03-15 00:58:55 by jwe] jwe parents: 5164 diff changeset	6015 #ifdef HAVE_UMFPACK
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6016 Matrix Control, Info;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6017 void *Numeric = factorize (err, rcond, Control, Info,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6018 sing_handler, calc_cond);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6019
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6020 if (err == 0)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6021 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6022 octave_idx_type b_nr = b.rows ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6023 octave_idx_type b_nc = b.cols ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6024 int status = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6025 double *control = Control.fortran_vec ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6026 double *info = Info.fortran_vec ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6027 const octave_idx_type *Ap = cidx ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6028 const octave_idx_type *Ai = ridx ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6029 const Complex *Ax = data ();
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6030
5203 dbeafbc0ff64 [project @ 2005-03-15 00:58:55 by jwe] jwe parents: 5164 diff changeset	6031 #ifdef UMFPACK_SEPARATE_SPLIT
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6032 OCTAVE_LOCAL_BUFFER (double, Bx, b_nr);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6033 OCTAVE_LOCAL_BUFFER (double, Bz, b_nr);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6034 for (octave_idx_type i = 0; i < b_nr; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6035 Bz[i] = 0.;
5203 dbeafbc0ff64 [project @ 2005-03-15 00:58:55 by jwe] jwe parents: 5164 diff changeset	6036 #else
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6037 OCTAVE_LOCAL_BUFFER (Complex, Bz, b_nr);
5203 dbeafbc0ff64 [project @ 2005-03-15 00:58:55 by jwe] jwe parents: 5164 diff changeset	6038 #endif
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6039
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6040 // Take a first guess that the number of non-zero terms
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6041 // will be as many as in b
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6042 octave_idx_type x_nz = b.nnz ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6043 octave_idx_type ii = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6044 retval = SparseComplexMatrix (b_nr, b_nc, x_nz);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6045
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6046 OCTAVE_LOCAL_BUFFER (Complex, Xx, b_nr);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6047
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6048 retval.xcidx(0) = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6049 for (octave_idx_type j = 0; j < b_nc; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6050 {
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6051
5203 dbeafbc0ff64 [project @ 2005-03-15 00:58:55 by jwe] jwe parents: 5164 diff changeset	6052 #ifdef UMFPACK_SEPARATE_SPLIT
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6053 for (octave_idx_type i = 0; i < b_nr; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6054 Bx[i] = b.elem (i, j);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6055
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6056 status = UMFPACK_ZNAME (solve) (UMFPACK_A, Ap,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6057 Ai,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6058 reinterpret_cast<const double *> (Ax),
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6059 0,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6060 reinterpret_cast<double *> (Xx),
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6061 0,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6062 Bx, Bz, Numeric, control,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6063 info);
5203 dbeafbc0ff64 [project @ 2005-03-15 00:58:55 by jwe] jwe parents: 5164 diff changeset	6064 #else
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6065 for (octave_idx_type i = 0; i < b_nr; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6066 Bz[i] = b.elem (i, j);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6067
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6068 status = UMFPACK_ZNAME (solve) (UMFPACK_A, Ap, Ai,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6069 reinterpret_cast<const double *> (Ax),
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6070 0,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6071 reinterpret_cast<double *> (Xx),
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6072 0,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6073 reinterpret_cast<double *> (Bz),
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6074 0,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6075 Numeric, control,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6076 info);
5203 dbeafbc0ff64 [project @ 2005-03-15 00:58:55 by jwe] jwe parents: 5164 diff changeset	6077 #endif
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6078 if (status < 0)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6079 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6080 (*current_liboctave_error_handler)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6081 ("SparseComplexMatrix::solve solve failed");
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6082
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6083 UMFPACK_ZNAME (report_status) (control, status);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6084
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6085 err = -1;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6086
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6087 break;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6088 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6089
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6090 for (octave_idx_type i = 0; i < b_nr; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6091 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6092 Complex tmp = Xx[i];
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6093 if (tmp != 0.0)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6094 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6095 if (ii == x_nz)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6096 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6097 // Resize the sparse matrix
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6098 octave_idx_type sz = x_nz * (b_nc - j) / b_nc;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6099 sz = (sz > 10 ? sz : 10) + x_nz;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6100 retval.change_capacity (sz);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6101 x_nz = sz;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6102 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6103 retval.xdata(ii) = tmp;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6104 retval.xridx(ii++) = i;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6105 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6106 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6107 retval.xcidx(j+1) = ii;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6108 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6109
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6110 retval.maybe_compress ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6111
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6112 UMFPACK_ZNAME (report_info) (control, info);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6113
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6114 UMFPACK_ZNAME (free_numeric) (&Numeric);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6115 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6116 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6117 mattype.mark_as_rectangular ();
5681 233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	6118
5203 dbeafbc0ff64 [project @ 2005-03-15 00:58:55 by jwe] jwe parents: 5164 diff changeset	6119 #else
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6120 (*current_liboctave_error_handler) ("UMFPACK not installed");
5203 dbeafbc0ff64 [project @ 2005-03-15 00:58:55 by jwe] jwe parents: 5164 diff changeset	6121 #endif
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6122 }
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	6123 else if (typ != MatrixType::Hermitian)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6124 (*current_liboctave_error_handler) ("incorrect matrix type");
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6125 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6126
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6127 return retval;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6128 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6129
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6130 ComplexMatrix
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	6131 SparseComplexMatrix::fsolve (MatrixType &mattype, const ComplexMatrix& b,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6132 octave_idx_type& err, double& rcond,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6133 solve_singularity_handler sing_handler,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6134 bool calc_cond) const
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6135 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6136 ComplexMatrix retval;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6137
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	6138 octave_idx_type nr = rows ();
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	6139 octave_idx_type nc = cols ();
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6140 err = 0;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6141
6924 be176b7e110a [project @ 2007-09-25 19:08:19 by dbateman] dbateman parents: 6840 diff changeset	6142 if (nr != nc \|\| nr != b.rows ())
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6143 (*current_liboctave_error_handler)
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6144 ("matrix dimension mismatch solution of linear equations");
6924 be176b7e110a [project @ 2007-09-25 19:08:19 by dbateman] dbateman parents: 6840 diff changeset	6145 else if (nr == 0 \|\| b.cols () == 0)
be176b7e110a [project @ 2007-09-25 19:08:19 by dbateman] dbateman parents: 6840 diff changeset	6146 retval = ComplexMatrix (nc, b.cols (), Complex (0.0, 0.0));
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6147 else
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6148 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6149 // Print spparms("spumoni") info if requested
5506 b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: 5451 diff changeset	6150 volatile int typ = mattype.type ();
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6151 mattype.info ();
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6152
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	6153 if (typ == MatrixType::Hermitian)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6154 {
5506 b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: 5451 diff changeset	6155 #ifdef HAVE_CHOLMOD
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6156 cholmod_common Common;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6157 cholmod_common *cm = &Common;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6158
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6159 // Setup initial parameters
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6160 CHOLMOD_NAME(start) (cm);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6161 cm->prefer_zomplex = false;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6162
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6163 double spu = octave_sparse_params::get_key ("spumoni");
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6164 if (spu == 0.)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6165 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6166 cm->print = -1;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6167 cm->print_function = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6168 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6169 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6170 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6171 cm->print = static_cast<int> (spu) + 2;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6172 cm->print_function =&SparseCholPrint;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6173 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6174
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6175 cm->error_handler = &SparseCholError;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6176 cm->complex_divide = CHOLMOD_NAME(divcomplex);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6177 cm->hypotenuse = CHOLMOD_NAME(hypot);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6178
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6179 cm->final_ll = true;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6180
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6181 cholmod_sparse Astore;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6182 cholmod_sparse *A = &Astore;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6183 double dummy;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6184 A->nrow = nr;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6185 A->ncol = nc;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6186
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6187 A->p = cidx();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6188 A->i = ridx();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6189 A->nzmax = nnz();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6190 A->packed = true;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6191 A->sorted = true;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6192 A->nz = 0;
5506 b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: 5451 diff changeset	6193 #ifdef IDX_TYPE_LONG
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6194 A->itype = CHOLMOD_LONG;
5506 b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: 5451 diff changeset	6195 #else
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6196 A->itype = CHOLMOD_INT;
5506 b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: 5451 diff changeset	6197 #endif
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6198 A->dtype = CHOLMOD_DOUBLE;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6199 A->stype = 1;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6200 A->xtype = CHOLMOD_COMPLEX;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6201
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6202 if (nr < 1)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6203 A->x = &dummy;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6204 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6205 A->x = data();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6206
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6207 cholmod_dense Bstore;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6208 cholmod_dense *B = &Bstore;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6209 B->nrow = b.rows();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6210 B->ncol = b.cols();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6211 B->d = B->nrow;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6212 B->nzmax = B->nrow * B->ncol;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6213 B->dtype = CHOLMOD_DOUBLE;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6214 B->xtype = CHOLMOD_COMPLEX;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6215 if (nc < 1 \|\| b.cols() < 1)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6216 B->x = &dummy;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6217 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6218 // We won't alter it, honest :-)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6219 B->x = const_cast<Complex *>(b.fortran_vec());
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6220
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6221 cholmod_factor *L;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6222 BEGIN_INTERRUPT_IMMEDIATELY_IN_FOREIGN_CODE;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6223 L = CHOLMOD_NAME(analyze) (A, cm);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6224 CHOLMOD_NAME(factorize) (A, L, cm);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6225 if (calc_cond)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6226 rcond = CHOLMOD_NAME(rcond)(L, cm);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6227 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6228 rcond = 1.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6229 END_INTERRUPT_IMMEDIATELY_IN_FOREIGN_CODE;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6230
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6231 if (rcond == 0.0)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6232 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6233 // Either its indefinite or singular. Try UMFPACK
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6234 mattype.mark_as_unsymmetric ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6235 typ = MatrixType::Full;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6236 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6237 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6238 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6239 volatile double rcond_plus_one = rcond + 1.0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6240
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6241 if (rcond_plus_one == 1.0 \|\| xisnan (rcond))
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6242 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6243 err = -2;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6244
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6245 if (sing_handler)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6246 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6247 sing_handler (rcond);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6248 mattype.mark_as_rectangular ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6249 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6250 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6251 (*current_liboctave_error_handler)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6252 ("SparseMatrix::solve matrix singular to machine precision, rcond = %g",
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6253 rcond);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6254
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6255 return retval;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6256 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6257
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6258 cholmod_dense *X;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6259 BEGIN_INTERRUPT_IMMEDIATELY_IN_FOREIGN_CODE;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6260 X = CHOLMOD_NAME(solve) (CHOLMOD_A, L, B, cm);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6261 END_INTERRUPT_IMMEDIATELY_IN_FOREIGN_CODE;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6262
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6263 retval.resize (b.rows (), b.cols());
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6264 for (octave_idx_type j = 0; j < b.cols(); j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6265 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6266 octave_idx_type jr = j * b.rows();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6267 for (octave_idx_type i = 0; i < b.rows(); i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6268 retval.xelem(i,j) = static_cast<Complex *>(X->x)[jr + i];
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6269 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6270
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6271 BEGIN_INTERRUPT_IMMEDIATELY_IN_FOREIGN_CODE;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6272 CHOLMOD_NAME(free_dense) (&X, cm);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6273 CHOLMOD_NAME(free_factor) (&L, cm);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6274 CHOLMOD_NAME(finish) (cm);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6275 static char tmp[] = " ";
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6276 CHOLMOD_NAME(print_common) (tmp, cm);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6277 END_INTERRUPT_IMMEDIATELY_IN_FOREIGN_CODE;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6278 }
5506 b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: 5451 diff changeset	6279 #else
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6280 (*current_liboctave_warning_handler)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6281 ("CHOLMOD not installed");
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6282
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6283 mattype.mark_as_unsymmetric ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6284 typ = MatrixType::Full;
5506 b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: 5451 diff changeset	6285 #endif
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6286 }
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6287
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	6288 if (typ == MatrixType::Full)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6289 {
5203 dbeafbc0ff64 [project @ 2005-03-15 00:58:55 by jwe] jwe parents: 5164 diff changeset	6290 #ifdef HAVE_UMFPACK
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6291 Matrix Control, Info;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6292 void *Numeric = factorize (err, rcond, Control, Info,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6293 sing_handler, calc_cond);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6294
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6295 if (err == 0)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6296 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6297 octave_idx_type b_nr = b.rows ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6298 octave_idx_type b_nc = b.cols ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6299 int status = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6300 double *control = Control.fortran_vec ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6301 double *info = Info.fortran_vec ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6302 const octave_idx_type *Ap = cidx ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6303 const octave_idx_type *Ai = ridx ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6304 const Complex *Ax = data ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6305 const Complex *Bx = b.fortran_vec ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6306
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6307 retval.resize (b_nr, b_nc);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6308 Complex *Xx = retval.fortran_vec ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6309
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6310 for (octave_idx_type j = 0, iidx = 0; j < b_nc; j++, iidx += b_nr)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6311 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6312 status =
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6313 UMFPACK_ZNAME (solve) (UMFPACK_A, Ap, Ai,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6314 reinterpret_cast<const double *> (Ax),
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6315 0,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6316 reinterpret_cast<double *> (&Xx[iidx]),
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6317 0,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6318 reinterpret_cast<const double *> (&Bx[iidx]),
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6319 0, Numeric, control, info);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6320
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6321 if (status < 0)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6322 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6323 (*current_liboctave_error_handler)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6324 ("SparseComplexMatrix::solve solve failed");
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6325
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6326 UMFPACK_ZNAME (report_status) (control, status);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6327
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6328 err = -1;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6329
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6330 break;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6331 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6332 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6333
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6334 UMFPACK_ZNAME (report_info) (control, info);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6335
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6336 UMFPACK_ZNAME (free_numeric) (&Numeric);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6337 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6338 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6339 mattype.mark_as_rectangular ();
5681 233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	6340
5203 dbeafbc0ff64 [project @ 2005-03-15 00:58:55 by jwe] jwe parents: 5164 diff changeset	6341 #else
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6342 (*current_liboctave_error_handler) ("UMFPACK not installed");
5203 dbeafbc0ff64 [project @ 2005-03-15 00:58:55 by jwe] jwe parents: 5164 diff changeset	6343 #endif
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6344 }
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	6345 else if (typ != MatrixType::Hermitian)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6346 (*current_liboctave_error_handler) ("incorrect matrix type");
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6347 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6348
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6349 return retval;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6350 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6351
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6352 SparseComplexMatrix
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	6353 SparseComplexMatrix::fsolve (MatrixType &mattype, const SparseComplexMatrix& b,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6354 octave_idx_type& err, double& rcond,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6355 solve_singularity_handler sing_handler,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6356 bool calc_cond) const
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6357 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6358 SparseComplexMatrix retval;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6359
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	6360 octave_idx_type nr = rows ();
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	6361 octave_idx_type nc = cols ();
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6362 err = 0;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6363
6924 be176b7e110a [project @ 2007-09-25 19:08:19 by dbateman] dbateman parents: 6840 diff changeset	6364 if (nr != nc \|\| nr != b.rows ())
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6365 (*current_liboctave_error_handler)
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6366 ("matrix dimension mismatch solution of linear equations");
6924 be176b7e110a [project @ 2007-09-25 19:08:19 by dbateman] dbateman parents: 6840 diff changeset	6367 else if (nr == 0 \|\| b.cols () == 0)
be176b7e110a [project @ 2007-09-25 19:08:19 by dbateman] dbateman parents: 6840 diff changeset	6368 retval = SparseComplexMatrix (nc, b.cols ());
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6369 else
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6370 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6371 // Print spparms("spumoni") info if requested
5506 b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: 5451 diff changeset	6372 volatile int typ = mattype.type ();
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6373 mattype.info ();
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6374
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	6375 if (typ == MatrixType::Hermitian)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6376 {
5506 b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: 5451 diff changeset	6377 #ifdef HAVE_CHOLMOD
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6378 cholmod_common Common;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6379 cholmod_common *cm = &Common;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6380
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6381 // Setup initial parameters
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6382 CHOLMOD_NAME(start) (cm);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6383 cm->prefer_zomplex = false;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6384
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6385 double spu = octave_sparse_params::get_key ("spumoni");
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6386 if (spu == 0.)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6387 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6388 cm->print = -1;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6389 cm->print_function = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6390 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6391 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6392 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6393 cm->print = static_cast<int> (spu) + 2;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6394 cm->print_function =&SparseCholPrint;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6395 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6396
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6397 cm->error_handler = &SparseCholError;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6398 cm->complex_divide = CHOLMOD_NAME(divcomplex);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6399 cm->hypotenuse = CHOLMOD_NAME(hypot);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6400
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6401 cm->final_ll = true;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6402
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6403 cholmod_sparse Astore;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6404 cholmod_sparse *A = &Astore;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6405 double dummy;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6406 A->nrow = nr;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6407 A->ncol = nc;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6408
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6409 A->p = cidx();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6410 A->i = ridx();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6411 A->nzmax = nnz();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6412 A->packed = true;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6413 A->sorted = true;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6414 A->nz = 0;
5506 b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: 5451 diff changeset	6415 #ifdef IDX_TYPE_LONG
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6416 A->itype = CHOLMOD_LONG;
5506 b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: 5451 diff changeset	6417 #else
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6418 A->itype = CHOLMOD_INT;
5506 b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: 5451 diff changeset	6419 #endif
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6420 A->dtype = CHOLMOD_DOUBLE;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6421 A->stype = 1;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6422 A->xtype = CHOLMOD_COMPLEX;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6423
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6424 if (nr < 1)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6425 A->x = &dummy;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6426 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6427 A->x = data();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6428
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6429 cholmod_sparse Bstore;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6430 cholmod_sparse *B = &Bstore;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6431 B->nrow = b.rows();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6432 B->ncol = b.cols();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6433 B->p = b.cidx();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6434 B->i = b.ridx();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6435 B->nzmax = b.nnz();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6436 B->packed = true;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6437 B->sorted = true;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6438 B->nz = 0;
5506 b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: 5451 diff changeset	6439 #ifdef IDX_TYPE_LONG
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6440 B->itype = CHOLMOD_LONG;
5506 b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: 5451 diff changeset	6441 #else
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6442 B->itype = CHOLMOD_INT;
5506 b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: 5451 diff changeset	6443 #endif
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6444 B->dtype = CHOLMOD_DOUBLE;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6445 B->stype = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6446 B->xtype = CHOLMOD_COMPLEX;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6447
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6448 if (b.rows() < 1 \|\| b.cols() < 1)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6449 B->x = &dummy;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6450 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6451 B->x = b.data();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6452
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6453 cholmod_factor *L;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6454 BEGIN_INTERRUPT_IMMEDIATELY_IN_FOREIGN_CODE;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6455 L = CHOLMOD_NAME(analyze) (A, cm);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6456 CHOLMOD_NAME(factorize) (A, L, cm);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6457 if (calc_cond)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6458 rcond = CHOLMOD_NAME(rcond)(L, cm);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6459 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6460 rcond = 1.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6461 END_INTERRUPT_IMMEDIATELY_IN_FOREIGN_CODE;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6462
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6463 if (rcond == 0.0)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6464 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6465 // Either its indefinite or singular. Try UMFPACK
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6466 mattype.mark_as_unsymmetric ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6467 typ = MatrixType::Full;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6468 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6469 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6470 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6471 volatile double rcond_plus_one = rcond + 1.0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6472
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6473 if (rcond_plus_one == 1.0 \|\| xisnan (rcond))
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6474 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6475 err = -2;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6476
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6477 if (sing_handler)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6478 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6479 sing_handler (rcond);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6480 mattype.mark_as_rectangular ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6481 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6482 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6483 (*current_liboctave_error_handler)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6484 ("SparseMatrix::solve matrix singular to machine precision, rcond = %g",
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6485 rcond);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6486
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6487 return retval;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6488 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6489
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6490 cholmod_sparse *X;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6491 BEGIN_INTERRUPT_IMMEDIATELY_IN_FOREIGN_CODE;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6492 X = CHOLMOD_NAME(spsolve) (CHOLMOD_A, L, B, cm);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6493 END_INTERRUPT_IMMEDIATELY_IN_FOREIGN_CODE;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6494
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6495 retval = SparseComplexMatrix
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6496 (static_cast<octave_idx_type>(X->nrow),
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6497 static_cast<octave_idx_type>(X->ncol),
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6498 static_cast<octave_idx_type>(X->nzmax));
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6499 for (octave_idx_type j = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6500 j <= static_cast<octave_idx_type>(X->ncol); j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6501 retval.xcidx(j) = static_cast<octave_idx_type *>(X->p)[j];
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6502 for (octave_idx_type j = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6503 j < static_cast<octave_idx_type>(X->nzmax); j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6504 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6505 retval.xridx(j) = static_cast<octave_idx_type *>(X->i)[j];
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6506 retval.xdata(j) = static_cast<Complex *>(X->x)[j];
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6507 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6508
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6509 BEGIN_INTERRUPT_IMMEDIATELY_IN_FOREIGN_CODE;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6510 CHOLMOD_NAME(free_sparse) (&X, cm);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6511 CHOLMOD_NAME(free_factor) (&L, cm);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6512 CHOLMOD_NAME(finish) (cm);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6513 static char tmp[] = " ";
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6514 CHOLMOD_NAME(print_common) (tmp, cm);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6515 END_INTERRUPT_IMMEDIATELY_IN_FOREIGN_CODE;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6516 }
5506 b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: 5451 diff changeset	6517 #else
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6518 (*current_liboctave_warning_handler)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6519 ("CHOLMOD not installed");
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6520
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6521 mattype.mark_as_unsymmetric ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6522 typ = MatrixType::Full;
5506 b4cfbb0ec8c4 [project @ 2005-10-23 19:09:32 by dbateman] dbateman parents: 5451 diff changeset	6523 #endif
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6524 }
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6525
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	6526 if (typ == MatrixType::Full)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6527 {
5203 dbeafbc0ff64 [project @ 2005-03-15 00:58:55 by jwe] jwe parents: 5164 diff changeset	6528 #ifdef HAVE_UMFPACK
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6529 Matrix Control, Info;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6530 void *Numeric = factorize (err, rcond, Control, Info,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6531 sing_handler, calc_cond);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6532
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6533 if (err == 0)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6534 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6535 octave_idx_type b_nr = b.rows ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6536 octave_idx_type b_nc = b.cols ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6537 int status = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6538 double *control = Control.fortran_vec ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6539 double *info = Info.fortran_vec ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6540 const octave_idx_type *Ap = cidx ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6541 const octave_idx_type *Ai = ridx ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6542 const Complex *Ax = data ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6543
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6544 OCTAVE_LOCAL_BUFFER (Complex, Bx, b_nr);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6545
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6546 // Take a first guess that the number of non-zero terms
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6547 // will be as many as in b
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6548 octave_idx_type x_nz = b.nnz ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6549 octave_idx_type ii = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6550 retval = SparseComplexMatrix (b_nr, b_nc, x_nz);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6551
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6552 OCTAVE_LOCAL_BUFFER (Complex, Xx, b_nr);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6553
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6554 retval.xcidx(0) = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6555 for (octave_idx_type j = 0; j < b_nc; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6556 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6557 for (octave_idx_type i = 0; i < b_nr; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6558 Bx[i] = b (i,j);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6559
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6560 status = UMFPACK_ZNAME (solve) (UMFPACK_A, Ap,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6561 Ai,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6562 reinterpret_cast<const double *> (Ax),
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6563 0,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6564 reinterpret_cast<double *> (Xx),
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6565 0,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6566 reinterpret_cast<double *> (Bx),
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6567 0, Numeric, control, info);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6568
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6569 if (status < 0)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6570 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6571 (*current_liboctave_error_handler)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6572 ("SparseComplexMatrix::solve solve failed");
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6573
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6574 UMFPACK_ZNAME (report_status) (control, status);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6575
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6576 err = -1;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6577
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6578 break;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6579 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6580
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6581 for (octave_idx_type i = 0; i < b_nr; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6582 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6583 Complex tmp = Xx[i];
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6584 if (tmp != 0.0)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6585 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6586 if (ii == x_nz)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6587 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6588 // Resize the sparse matrix
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6589 octave_idx_type sz = x_nz * (b_nc - j) / b_nc;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6590 sz = (sz > 10 ? sz : 10) + x_nz;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6591 retval.change_capacity (sz);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6592 x_nz = sz;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6593 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6594 retval.xdata(ii) = tmp;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6595 retval.xridx(ii++) = i;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6596 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6597 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6598 retval.xcidx(j+1) = ii;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6599 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6600
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6601 retval.maybe_compress ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6602
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6603 rcond = Info (UMFPACK_RCOND);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6604 volatile double rcond_plus_one = rcond + 1.0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6605
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6606 if (status == UMFPACK_WARNING_singular_matrix \|\|
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6607 rcond_plus_one == 1.0 \|\| xisnan (rcond))
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6608 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6609 err = -2;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6610
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6611 if (sing_handler)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6612 sing_handler (rcond);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6613 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6614 (*current_liboctave_error_handler)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6615 ("SparseComplexMatrix::solve matrix singular to machine precision, rcond = %g",
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6616 rcond);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6617
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6618 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6619
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6620 UMFPACK_ZNAME (report_info) (control, info);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6621
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6622 UMFPACK_ZNAME (free_numeric) (&Numeric);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6623 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6624 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6625 mattype.mark_as_rectangular ();
5681 233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	6626
5203 dbeafbc0ff64 [project @ 2005-03-15 00:58:55 by jwe] jwe parents: 5164 diff changeset	6627 #else
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6628 (*current_liboctave_error_handler) ("UMFPACK not installed");
5203 dbeafbc0ff64 [project @ 2005-03-15 00:58:55 by jwe] jwe parents: 5164 diff changeset	6629 #endif
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6630 }
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	6631 else if (typ != MatrixType::Hermitian)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6632 (*current_liboctave_error_handler) ("incorrect matrix type");
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6633 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6634
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6635 return retval;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6636 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6637
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6638 ComplexMatrix
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	6639 SparseComplexMatrix::solve (MatrixType &mattype, const Matrix& b) const
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6640 {
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	6641 octave_idx_type info;
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6642 double rcond;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6643 return solve (mattype, b, info, rcond, 0);
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6644 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6645
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6646 ComplexMatrix
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	6647 SparseComplexMatrix::solve (MatrixType &mattype, const Matrix& b,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6648 octave_idx_type& info) const
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6649 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6650 double rcond;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6651 return solve (mattype, b, info, rcond, 0);
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6652 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6653
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6654 ComplexMatrix
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	6655 SparseComplexMatrix::solve (MatrixType &mattype, const Matrix& b,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6656 octave_idx_type& info, double& rcond) const
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6657 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6658 return solve (mattype, b, info, rcond, 0);
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6659 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6660
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6661 ComplexMatrix
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	6662 SparseComplexMatrix::solve (MatrixType &mattype, const Matrix& b,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6663 octave_idx_type& err, double& rcond,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6664 solve_singularity_handler sing_handler,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6665 bool singular_fallback) const
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6666 {
5681 233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	6667 ComplexMatrix retval;
5322 22994a5730f9 [project @ 2005-04-29 13:04:24 by dbateman] dbateman parents: 5307 diff changeset	6668 int typ = mattype.type (false);
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6669
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	6670 if (typ == MatrixType::Unknown)
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6671 typ = mattype.type (*this);
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6672
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	6673 if (typ == MatrixType::Diagonal \|\| typ == MatrixType::Permuted_Diagonal)
5681 233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	6674 retval = dsolve (mattype, b, err, rcond, sing_handler, false);
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	6675 else if (typ == MatrixType::Upper \|\| typ == MatrixType::Permuted_Upper)
5681 233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	6676 retval = utsolve (mattype, b, err, rcond, sing_handler, false);
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	6677 else if (typ == MatrixType::Lower \|\| typ == MatrixType::Permuted_Lower)
5681 233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	6678 retval = ltsolve (mattype, b, err, rcond, sing_handler, false);
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	6679 else if (typ == MatrixType::Banded \|\| typ == MatrixType::Banded_Hermitian)
5681 233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	6680 retval = bsolve (mattype, b, err, rcond, sing_handler, false);
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	6681 else if (typ == MatrixType::Tridiagonal \|\|
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6682 typ == MatrixType::Tridiagonal_Hermitian)
5681 233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	6683 retval = trisolve (mattype, b, err, rcond, sing_handler, false);
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	6684 else if (typ == MatrixType::Full \|\| typ == MatrixType::Hermitian)
5681 233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	6685 retval = fsolve (mattype, b, err, rcond, sing_handler, true);
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	6686 else if (typ != MatrixType::Rectangular)
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6687 {
5681 233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	6688 (*current_liboctave_error_handler) ("unknown matrix type");
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6689 return ComplexMatrix ();
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6690 }
5681 233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	6691
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	6692 if (singular_fallback && mattype.type(false) == MatrixType::Rectangular)
5681 233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	6693 {
233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	6694 rcond = 1.;
233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	6695 #ifdef USE_QRSOLVE
233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	6696 retval = qrsolve (*this, b, err);
233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	6697 #else
233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	6698 retval = dmsolve<ComplexMatrix, SparseComplexMatrix,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6699 Matrix> (*this, b, err);
5681 233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	6700 #endif
233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	6701 }
233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	6702
233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	6703 return retval;
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6704 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6705
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6706 SparseComplexMatrix
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	6707 SparseComplexMatrix::solve (MatrixType &mattype, const SparseMatrix& b) const
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6708 {
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	6709 octave_idx_type info;
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6710 double rcond;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6711 return solve (mattype, b, info, rcond, 0);
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6712 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6713
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6714 SparseComplexMatrix
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	6715 SparseComplexMatrix::solve (MatrixType &mattype, const SparseMatrix& b,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6716 octave_idx_type& info) const
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6717 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6718 double rcond;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6719 return solve (mattype, b, info, rcond, 0);
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6720 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6721
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6722 SparseComplexMatrix
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	6723 SparseComplexMatrix::solve (MatrixType &mattype, const SparseMatrix& b,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6724 octave_idx_type& info, double& rcond) const
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6725 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6726 return solve (mattype, b, info, rcond, 0);
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6727 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6728
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6729 SparseComplexMatrix
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	6730 SparseComplexMatrix::solve (MatrixType &mattype, const SparseMatrix& b,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6731 octave_idx_type& err, double& rcond,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6732 solve_singularity_handler sing_handler,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6733 bool singular_fallback) const
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6734 {
5681 233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	6735 SparseComplexMatrix retval;
5322 22994a5730f9 [project @ 2005-04-29 13:04:24 by dbateman] dbateman parents: 5307 diff changeset	6736 int typ = mattype.type (false);
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6737
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	6738 if (typ == MatrixType::Unknown)
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6739 typ = mattype.type (*this);
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6740
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	6741 if (typ == MatrixType::Diagonal \|\| typ == MatrixType::Permuted_Diagonal)
5681 233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	6742 retval = dsolve (mattype, b, err, rcond, sing_handler, false);
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	6743 else if (typ == MatrixType::Upper \|\| typ == MatrixType::Permuted_Upper)
5681 233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	6744 retval = utsolve (mattype, b, err, rcond, sing_handler, false);
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	6745 else if (typ == MatrixType::Lower \|\| typ == MatrixType::Permuted_Lower)
5681 233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	6746 retval = ltsolve (mattype, b, err, rcond, sing_handler, false);
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	6747 else if (typ == MatrixType::Banded \|\| typ == MatrixType::Banded_Hermitian)
5681 233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	6748 retval = bsolve (mattype, b, err, rcond, sing_handler, false);
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	6749 else if (typ == MatrixType::Tridiagonal \|\|
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6750 typ == MatrixType::Tridiagonal_Hermitian)
5681 233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	6751 retval = trisolve (mattype, b, err, rcond, sing_handler, false);
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	6752 else if (typ == MatrixType::Full \|\| typ == MatrixType::Hermitian)
5681 233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	6753 retval = fsolve (mattype, b, err, rcond, sing_handler, true);
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	6754 else if (typ != MatrixType::Rectangular)
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6755 {
5681 233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	6756 (*current_liboctave_error_handler) ("unknown matrix type");
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6757 return SparseComplexMatrix ();
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6758 }
5681 233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	6759
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	6760 if (singular_fallback && mattype.type(false) == MatrixType::Rectangular)
5681 233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	6761 {
233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	6762 rcond = 1.;
233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	6763 #ifdef USE_QRSOLVE
233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	6764 retval = qrsolve (*this, b, err);
233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	6765 #else
233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	6766 retval = dmsolve<SparseComplexMatrix, SparseComplexMatrix,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6767 SparseMatrix> (*this, b, err);
5681 233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	6768 #endif
233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	6769 }
233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	6770
233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	6771 return retval;
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6772 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6773
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6774 ComplexMatrix
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	6775 SparseComplexMatrix::solve (MatrixType &mattype, const ComplexMatrix& b) const
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6776 {
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	6777 octave_idx_type info;
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6778 double rcond;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6779 return solve (mattype, b, info, rcond, 0);
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6780 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6781
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6782 ComplexMatrix
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	6783 SparseComplexMatrix::solve (MatrixType &mattype, const ComplexMatrix& b,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6784 octave_idx_type& info) const
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6785 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6786 double rcond;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6787 return solve (mattype, b, info, rcond, 0);
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6788 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6789
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6790 ComplexMatrix
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	6791 SparseComplexMatrix::solve (MatrixType &mattype, const ComplexMatrix& b,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6792 octave_idx_type& info, double& rcond) const
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6793 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6794 return solve (mattype, b, info, rcond, 0);
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6795 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6796
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6797 ComplexMatrix
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	6798 SparseComplexMatrix::solve (MatrixType &mattype, const ComplexMatrix& b,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6799 octave_idx_type& err, double& rcond,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6800 solve_singularity_handler sing_handler,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6801 bool singular_fallback) const
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6802 {
5681 233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	6803 ComplexMatrix retval;
5322 22994a5730f9 [project @ 2005-04-29 13:04:24 by dbateman] dbateman parents: 5307 diff changeset	6804 int typ = mattype.type (false);
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6805
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	6806 if (typ == MatrixType::Unknown)
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6807 typ = mattype.type (*this);
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6808
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	6809 if (typ == MatrixType::Diagonal \|\| typ == MatrixType::Permuted_Diagonal)
5681 233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	6810 retval = dsolve (mattype, b, err, rcond, sing_handler, false);
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	6811 else if (typ == MatrixType::Upper \|\| typ == MatrixType::Permuted_Upper)
5681 233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	6812 retval = utsolve (mattype, b, err, rcond, sing_handler, false);
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	6813 else if (typ == MatrixType::Lower \|\| typ == MatrixType::Permuted_Lower)
5681 233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	6814 retval = ltsolve (mattype, b, err, rcond, sing_handler, false);
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	6815 else if (typ == MatrixType::Banded \|\| typ == MatrixType::Banded_Hermitian)
5681 233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	6816 retval = bsolve (mattype, b, err, rcond, sing_handler, false);
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	6817 else if (typ == MatrixType::Tridiagonal \|\|
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6818 typ == MatrixType::Tridiagonal_Hermitian)
5681 233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	6819 retval = trisolve (mattype, b, err, rcond, sing_handler, false);
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	6820 else if (typ == MatrixType::Full \|\| typ == MatrixType::Hermitian)
5681 233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	6821 retval = fsolve (mattype, b, err, rcond, sing_handler, true);
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	6822 else if (typ != MatrixType::Rectangular)
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6823 {
5681 233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	6824 (*current_liboctave_error_handler) ("unknown matrix type");
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6825 return ComplexMatrix ();
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6826 }
5681 233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	6827
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	6828 if (singular_fallback && mattype.type(false) == MatrixType::Rectangular)
5681 233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	6829 {
233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	6830 rcond = 1.;
233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	6831 #ifdef USE_QRSOLVE
233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	6832 retval = qrsolve (*this, b, err);
233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	6833 #else
233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	6834 retval = dmsolve<ComplexMatrix, SparseComplexMatrix,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6835 ComplexMatrix> (*this, b, err);
5681 233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	6836 #endif
233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	6837 }
233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	6838
233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	6839 return retval;
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6840 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6841
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6842 SparseComplexMatrix
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	6843 SparseComplexMatrix::solve (MatrixType &mattype,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6844 const SparseComplexMatrix& b) const
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6845 {
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	6846 octave_idx_type info;
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6847 double rcond;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6848 return solve (mattype, b, info, rcond, 0);
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6849 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6850
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6851 SparseComplexMatrix
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	6852 SparseComplexMatrix::solve (MatrixType &mattype, const SparseComplexMatrix& b,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6853 octave_idx_type& info) const
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6854 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6855 double rcond;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6856 return solve (mattype, b, info, rcond, 0);
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6857 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6858
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6859 SparseComplexMatrix
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	6860 SparseComplexMatrix::solve (MatrixType &mattype, const SparseComplexMatrix& b,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6861 octave_idx_type& info, double& rcond) const
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6862 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6863 return solve (mattype, b, info, rcond, 0);
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6864 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6865
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6866 SparseComplexMatrix
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	6867 SparseComplexMatrix::solve (MatrixType &mattype, const SparseComplexMatrix& b,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6868 octave_idx_type& err, double& rcond,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6869 solve_singularity_handler sing_handler,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6870 bool singular_fallback) const
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6871 {
5681 233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	6872 SparseComplexMatrix retval;
5322 22994a5730f9 [project @ 2005-04-29 13:04:24 by dbateman] dbateman parents: 5307 diff changeset	6873 int typ = mattype.type (false);
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6874
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	6875 if (typ == MatrixType::Unknown)
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6876 typ = mattype.type (*this);
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6877
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	6878 if (typ == MatrixType::Diagonal \|\| typ == MatrixType::Permuted_Diagonal)
5681 233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	6879 retval = dsolve (mattype, b, err, rcond, sing_handler, false);
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	6880 else if (typ == MatrixType::Upper \|\| typ == MatrixType::Permuted_Upper)
5681 233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	6881 retval = utsolve (mattype, b, err, rcond, sing_handler, false);
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	6882 else if (typ == MatrixType::Lower \|\| typ == MatrixType::Permuted_Lower)
5681 233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	6883 retval = ltsolve (mattype, b, err, rcond, sing_handler, false);
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	6884 else if (typ == MatrixType::Banded \|\| typ == MatrixType::Banded_Hermitian)
5681 233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	6885 retval = bsolve (mattype, b, err, rcond, sing_handler, false);
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	6886 else if (typ == MatrixType::Tridiagonal \|\|
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6887 typ == MatrixType::Tridiagonal_Hermitian)
5681 233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	6888 retval = trisolve (mattype, b, err, rcond, sing_handler, false);
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	6889 else if (typ == MatrixType::Full \|\| typ == MatrixType::Hermitian)
5681 233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	6890 retval = fsolve (mattype, b, err, rcond, sing_handler, true);
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	6891 else if (typ != MatrixType::Rectangular)
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6892 {
5681 233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	6893 (*current_liboctave_error_handler) ("unknown matrix type");
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6894 return SparseComplexMatrix ();
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6895 }
5681 233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	6896
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	6897 if (singular_fallback && mattype.type(false) == MatrixType::Rectangular)
5681 233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	6898 {
233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	6899 rcond = 1.;
233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	6900 #ifdef USE_QRSOLVE
233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	6901 retval = qrsolve (*this, b, err);
233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	6902 #else
233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	6903 retval = dmsolve<SparseComplexMatrix, SparseComplexMatrix,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6904 SparseComplexMatrix> (*this, b, err);
5681 233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	6905 #endif
233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	6906 }
233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	6907
233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	6908 return retval;
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6909 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6910
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6911 ComplexColumnVector
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	6912 SparseComplexMatrix::solve (MatrixType &mattype, const ColumnVector& b) const
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6913 {
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	6914 octave_idx_type info; double rcond;
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6915 return solve (mattype, b, info, rcond);
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6916 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6917
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6918 ComplexColumnVector
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	6919 SparseComplexMatrix::solve (MatrixType &mattype, const ColumnVector& b,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6920 octave_idx_type& info) const
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6921 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6922 double rcond;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6923 return solve (mattype, b, info, rcond);
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6924 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6925
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6926 ComplexColumnVector
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	6927 SparseComplexMatrix::solve (MatrixType &mattype, const ColumnVector& b,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6928 octave_idx_type& info, double& rcond) const
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6929 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6930 return solve (mattype, b, info, rcond, 0);
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6931 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6932
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6933 ComplexColumnVector
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	6934 SparseComplexMatrix::solve (MatrixType &mattype, const ColumnVector& b,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6935 octave_idx_type& info, double& rcond,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6936 solve_singularity_handler sing_handler) const
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6937 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6938 Matrix tmp (b);
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	6939 return solve (mattype, tmp, info, rcond, sing_handler).column (static_cast<octave_idx_type> (0));
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6940 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6941
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6942 ComplexColumnVector
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	6943 SparseComplexMatrix::solve (MatrixType &mattype,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6944 const ComplexColumnVector& b) const
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6945 {
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	6946 octave_idx_type info;
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6947 double rcond;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6948 return solve (mattype, b, info, rcond, 0);
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6949 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6950
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6951 ComplexColumnVector
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	6952 SparseComplexMatrix::solve (MatrixType &mattype, const ComplexColumnVector& b,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6953 octave_idx_type& info) const
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6954 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6955 double rcond;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6956 return solve (mattype, b, info, rcond, 0);
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6957 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6958
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6959 ComplexColumnVector
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	6960 SparseComplexMatrix::solve (MatrixType &mattype, const ComplexColumnVector& b,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6961 octave_idx_type& info, double& rcond) const
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6962 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6963 return solve (mattype, b, info, rcond, 0);
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6964 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6965
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6966 ComplexColumnVector
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	6967 SparseComplexMatrix::solve (MatrixType &mattype, const ComplexColumnVector& b,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6968 octave_idx_type& info, double& rcond,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6969 solve_singularity_handler sing_handler) const
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6970 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6971 ComplexMatrix tmp (b);
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	6972 return solve (mattype, tmp, info, rcond, sing_handler).column (static_cast<octave_idx_type> (0));
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6973 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6974
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6975 ComplexMatrix
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6976 SparseComplexMatrix::solve (const Matrix& b) const
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6977 {
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	6978 octave_idx_type info;
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6979 double rcond;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6980 return solve (b, info, rcond, 0);
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6981 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6982
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6983 ComplexMatrix
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	6984 SparseComplexMatrix::solve (const Matrix& b, octave_idx_type& info) const
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6985 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6986 double rcond;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6987 return solve (b, info, rcond, 0);
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6988 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6989
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6990 ComplexMatrix
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	6991 SparseComplexMatrix::solve (const Matrix& b, octave_idx_type& info,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6992 double& rcond) const
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6993 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6994 return solve (b, info, rcond, 0);
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6995 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6996
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	6997 ComplexMatrix
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	6998 SparseComplexMatrix::solve (const Matrix& b, octave_idx_type& err,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	6999 double& rcond,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7000 solve_singularity_handler sing_handler) const
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7001 {
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	7002 MatrixType mattype (*this);
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7003 return solve (mattype, b, err, rcond, sing_handler);
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7004 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7005
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7006 SparseComplexMatrix
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7007 SparseComplexMatrix::solve (const SparseMatrix& b) const
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7008 {
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	7009 octave_idx_type info;
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7010 double rcond;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7011 return solve (b, info, rcond, 0);
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7012 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7013
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7014 SparseComplexMatrix
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7015 SparseComplexMatrix::solve (const SparseMatrix& b,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7016 octave_idx_type& info) const
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7017 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7018 double rcond;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7019 return solve (b, info, rcond, 0);
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7020 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7021
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7022 SparseComplexMatrix
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7023 SparseComplexMatrix::solve (const SparseMatrix& b,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7024 octave_idx_type& info, double& rcond) const
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7025 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7026 return solve (b, info, rcond, 0);
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7027 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7028
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7029 SparseComplexMatrix
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7030 SparseComplexMatrix::solve (const SparseMatrix& b,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7031 octave_idx_type& err, double& rcond,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7032 solve_singularity_handler sing_handler) const
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7033 {
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	7034 MatrixType mattype (*this);
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7035 return solve (mattype, b, err, rcond, sing_handler);
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7036 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7037
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7038 ComplexMatrix
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7039 SparseComplexMatrix::solve (const ComplexMatrix& b,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7040 octave_idx_type& info) const
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7041 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7042 double rcond;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7043 return solve (b, info, rcond, 0);
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7044 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7045
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7046 ComplexMatrix
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7047 SparseComplexMatrix::solve (const ComplexMatrix& b,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7048 octave_idx_type& info, double& rcond) const
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7049 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7050 return solve (b, info, rcond, 0);
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7051 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7052
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7053 ComplexMatrix
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7054 SparseComplexMatrix::solve (const ComplexMatrix& b,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7055 octave_idx_type& err, double& rcond,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7056 solve_singularity_handler sing_handler) const
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7057 {
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	7058 MatrixType mattype (*this);
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7059 return solve (mattype, b, err, rcond, sing_handler);
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7060 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7061
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7062 SparseComplexMatrix
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7063 SparseComplexMatrix::solve (const SparseComplexMatrix& b) const
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7064 {
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	7065 octave_idx_type info;
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7066 double rcond;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7067 return solve (b, info, rcond, 0);
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7068 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7069
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7070 SparseComplexMatrix
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7071 SparseComplexMatrix::solve (const SparseComplexMatrix& b,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7072 octave_idx_type& info) const
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7073 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7074 double rcond;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7075 return solve (b, info, rcond, 0);
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7076 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7077
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7078 SparseComplexMatrix
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7079 SparseComplexMatrix::solve (const SparseComplexMatrix& b,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7080 octave_idx_type& info, double& rcond) const
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7081 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7082 return solve (b, info, rcond, 0);
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7083 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7084
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7085 SparseComplexMatrix
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7086 SparseComplexMatrix::solve (const SparseComplexMatrix& b,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7087 octave_idx_type& err, double& rcond,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7088 solve_singularity_handler sing_handler) const
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7089 {
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5780 diff changeset	7090 MatrixType mattype (*this);
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7091 return solve (mattype, b, err, rcond, sing_handler);
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7092 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7093
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7094 ComplexColumnVector
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7095 SparseComplexMatrix::solve (const ColumnVector& b) const
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7096 {
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	7097 octave_idx_type info; double rcond;
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7098 return solve (b, info, rcond);
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7099 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7100
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7101 ComplexColumnVector
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	7102 SparseComplexMatrix::solve (const ColumnVector& b, octave_idx_type& info) const
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7103 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7104 double rcond;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7105 return solve (b, info, rcond);
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7106 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7107
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7108 ComplexColumnVector
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	7109 SparseComplexMatrix::solve (const ColumnVector& b, octave_idx_type& info,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7110 double& rcond) const
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7111 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7112 return solve (b, info, rcond, 0);
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7113 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7114
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7115 ComplexColumnVector
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	7116 SparseComplexMatrix::solve (const ColumnVector& b, octave_idx_type& info, double& rcond,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7117 solve_singularity_handler sing_handler) const
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7118 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7119 Matrix tmp (b);
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	7120 return solve (tmp, info, rcond, sing_handler).column (static_cast<octave_idx_type> (0));
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7121 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7122
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7123 ComplexColumnVector
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7124 SparseComplexMatrix::solve (const ComplexColumnVector& b) const
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7125 {
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	7126 octave_idx_type info;
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7127 double rcond;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7128 return solve (b, info, rcond, 0);
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7129 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7130
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7131 ComplexColumnVector
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	7132 SparseComplexMatrix::solve (const ComplexColumnVector& b, octave_idx_type& info) const
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7133 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7134 double rcond;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7135 return solve (b, info, rcond, 0);
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7136 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7137
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7138 ComplexColumnVector
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	7139 SparseComplexMatrix::solve (const ComplexColumnVector& b, octave_idx_type& info,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7140 double& rcond) const
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7141 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7142 return solve (b, info, rcond, 0);
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7143 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7144
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7145 ComplexColumnVector
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	7146 SparseComplexMatrix::solve (const ComplexColumnVector& b, octave_idx_type& info,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7147 double& rcond,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7148 solve_singularity_handler sing_handler) const
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7149 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7150 ComplexMatrix tmp (b);
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	7151 return solve (tmp, info, rcond, sing_handler).column (static_cast<octave_idx_type> (0));
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7152 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7153
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7154 // unary operations
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7155 SparseBoolMatrix
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7156 SparseComplexMatrix::operator ! (void) const
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7157 {
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	7158 octave_idx_type nr = rows ();
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	7159 octave_idx_type nc = cols ();
5681 233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	7160 octave_idx_type nz1 = nnz ();
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	7161 octave_idx_type nz2 = nr*nc - nz1;
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7162
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7163 SparseBoolMatrix r (nr, nc, nz2);
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7164
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	7165 octave_idx_type ii = 0;
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	7166 octave_idx_type jj = 0;
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7167 r.cidx (0) = 0;
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	7168 for (octave_idx_type i = 0; i < nc; i++)
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7169 {
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	7170 for (octave_idx_type j = 0; j < nr; j++)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7171 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7172 if (jj < cidx(i+1) && ridx(jj) == j)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7173 jj++;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7174 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7175 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7176 r.data(ii) = true;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7177 r.ridx(ii++) = j;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7178 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7179 }
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7180 r.cidx (i+1) = ii;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7181 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7182
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7183 return r;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7184 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7185
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7186 SparseComplexMatrix
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7187 SparseComplexMatrix::squeeze (void) const
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7188 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7189 return MSparse<Complex>::squeeze ();
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7190 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7191
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7192 SparseComplexMatrix
10421 99e9bae2d81e improve sparse indexing interface Jaroslav Hajek <highegg@gmail.com> parents: 10350 diff changeset	7193 SparseComplexMatrix::index (const idx_vector& i, bool resize_ok) const
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7194 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7195 return MSparse<Complex>::index (i, resize_ok);
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7196 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7197
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7198 SparseComplexMatrix
10421 99e9bae2d81e improve sparse indexing interface Jaroslav Hajek <highegg@gmail.com> parents: 10350 diff changeset	7199 SparseComplexMatrix::index (const idx_vector& i, const idx_vector& j, bool resize_ok) const
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7200 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7201 return MSparse<Complex>::index (i, j, resize_ok);
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7202 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7203
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7204 SparseComplexMatrix
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7205 SparseComplexMatrix::reshape (const dim_vector& new_dims) const
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7206 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7207 return MSparse<Complex>::reshape (new_dims);
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7208 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7209
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7210 SparseComplexMatrix
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	7211 SparseComplexMatrix::permute (const Array<octave_idx_type>& vec, bool inv) const
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7212 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7213 return MSparse<Complex>::permute (vec, inv);
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7214 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7215
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7216 SparseComplexMatrix
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	7217 SparseComplexMatrix::ipermute (const Array<octave_idx_type>& vec) const
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7218 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7219 return MSparse<Complex>::ipermute (vec);
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7220 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7221
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7222 // other operations
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7223
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7224 bool
7922 935be827eaf8 error for NaN values in & and \| expressions John W. Eaton <jwe@octave.org> parents: 7802 diff changeset	7225 SparseComplexMatrix::any_element_is_nan (void) const
935be827eaf8 error for NaN values in & and \| expressions John W. Eaton <jwe@octave.org> parents: 7802 diff changeset	7226 {
935be827eaf8 error for NaN values in & and \| expressions John W. Eaton <jwe@octave.org> parents: 7802 diff changeset	7227 octave_idx_type nel = nnz ();
935be827eaf8 error for NaN values in & and \| expressions John W. Eaton <jwe@octave.org> parents: 7802 diff changeset	7228
935be827eaf8 error for NaN values in & and \| expressions John W. Eaton <jwe@octave.org> parents: 7802 diff changeset	7229 for (octave_idx_type i = 0; i < nel; i++)
935be827eaf8 error for NaN values in & and \| expressions John W. Eaton <jwe@octave.org> parents: 7802 diff changeset	7230 {
935be827eaf8 error for NaN values in & and \| expressions John W. Eaton <jwe@octave.org> parents: 7802 diff changeset	7231 Complex val = data (i);
935be827eaf8 error for NaN values in & and \| expressions John W. Eaton <jwe@octave.org> parents: 7802 diff changeset	7232 if (xisnan (val))
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7233 return true;
7922 935be827eaf8 error for NaN values in & and \| expressions John W. Eaton <jwe@octave.org> parents: 7802 diff changeset	7234 }
935be827eaf8 error for NaN values in & and \| expressions John W. Eaton <jwe@octave.org> parents: 7802 diff changeset	7235
935be827eaf8 error for NaN values in & and \| expressions John W. Eaton <jwe@octave.org> parents: 7802 diff changeset	7236 return false;
935be827eaf8 error for NaN values in & and \| expressions John W. Eaton <jwe@octave.org> parents: 7802 diff changeset	7237 }
935be827eaf8 error for NaN values in & and \| expressions John W. Eaton <jwe@octave.org> parents: 7802 diff changeset	7238
935be827eaf8 error for NaN values in & and \| expressions John W. Eaton <jwe@octave.org> parents: 7802 diff changeset	7239 bool
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7240 SparseComplexMatrix::any_element_is_inf_or_nan (void) const
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7241 {
5681 233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	7242 octave_idx_type nel = nnz ();
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	7243
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	7244 for (octave_idx_type i = 0; i < nel; i++)
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7245 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7246 Complex val = data (i);
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7247 if (xisinf (val) \|\| xisnan (val))
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7248 return true;
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7249 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7250
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7251 return false;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7252 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7253
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7254 // Return true if no elements have imaginary components.
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7255
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7256 bool
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7257 SparseComplexMatrix::all_elements_are_real (void) const
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7258 {
9825 7483fe200fab narrow complex values with negative zero imaginary parts Jaroslav Hajek <highegg@gmail.com> parents: 9812 diff changeset	7259 return mx_inline_all_real (nnz (), data ());
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7260 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7261
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7262 // Return nonzero if any element of CM has a non-integer real or
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7263 // imaginary part. Also extract the largest and smallest (real or
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7264 // imaginary) values and return them in MAX_VAL and MIN_VAL.
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7265
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7266 bool
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7267 SparseComplexMatrix::all_integers (double& max_val, double& min_val) const
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7268 {
5681 233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	7269 octave_idx_type nel = nnz ();
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7270
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7271 if (nel == 0)
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7272 return false;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7273
5261 90a9058de7e8 [project @ 2005-03-31 02:48:38 by jwe] jwe parents: 5203 diff changeset	7274 max_val = std::real(data (0));
90a9058de7e8 [project @ 2005-03-31 02:48:38 by jwe] jwe parents: 5203 diff changeset	7275 min_val = std::real(data (0));
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7276
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	7277 for (octave_idx_type i = 0; i < nel; i++)
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7278 {
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7279 Complex val = data (i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7280
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7281 double r_val = std::real (val);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7282 double i_val = std::imag (val);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7283
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7284 if (r_val > max_val)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7285 max_val = r_val;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7286
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7287 if (i_val > max_val)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7288 max_val = i_val;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7289
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7290 if (r_val < min_val)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7291 min_val = r_val;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7292
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7293 if (i_val < min_val)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7294 min_val = i_val;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7295
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7296 if (D_NINT (r_val) != r_val \|\| D_NINT (i_val) != i_val)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7297 return false;
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7298 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7299
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7300 return true;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7301 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7302
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7303 bool
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7304 SparseComplexMatrix::too_large_for_float (void) const
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7305 {
5681 233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	7306 octave_idx_type nel = nnz ();
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	7307
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	7308 for (octave_idx_type i = 0; i < nel; i++)
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7309 {
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7310 Complex val = data (i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7311
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7312 double r_val = std::real (val);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7313 double i_val = std::imag (val);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7314
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7315 if (r_val > FLT_MAX
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7316 \|\| i_val > FLT_MAX
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7317 \|\| r_val < FLT_MIN
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7318 \|\| i_val < FLT_MIN)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7319 return true;
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7320 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7321
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7322 return false;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7323 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7324
5775 ace8d8d26933 [project @ 2006-04-24 19:13:06 by jwe] jwe parents: 5760 diff changeset	7325 // FIXME Do these really belong here? Maybe they should be
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7326 // in a base class?
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7327
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7328 SparseBoolMatrix
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7329 SparseComplexMatrix::all (int dim) const
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7330 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7331 SPARSE_ALL_OP (dim);
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7332 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7333
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7334 SparseBoolMatrix
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7335 SparseComplexMatrix::any (int dim) const
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7336 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7337 SPARSE_ANY_OP (dim);
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7338 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7339
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7340 SparseComplexMatrix
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7341 SparseComplexMatrix::cumprod (int dim) const
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7342 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7343 SPARSE_CUMPROD (SparseComplexMatrix, Complex, cumprod);
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7344 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7345
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7346 SparseComplexMatrix
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7347 SparseComplexMatrix::cumsum (int dim) const
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7348 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7349 SPARSE_CUMSUM (SparseComplexMatrix, Complex, cumsum);
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7350 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7351
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7352 SparseComplexMatrix
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7353 SparseComplexMatrix::prod (int dim) const
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7354 {
7269 3fade00a6ac7 [project @ 2007-12-07 19:26:20 by jwe] jwe parents: 7036 diff changeset	7355 if ((rows() == 1 && dim == -1) \|\| dim == 1)
3fade00a6ac7 [project @ 2007-12-07 19:26:20 by jwe] jwe parents: 7036 diff changeset	7356 return transpose (). prod (0). transpose();
3fade00a6ac7 [project @ 2007-12-07 19:26:20 by jwe] jwe parents: 7036 diff changeset	7357 else
3fade00a6ac7 [project @ 2007-12-07 19:26:20 by jwe] jwe parents: 7036 diff changeset	7358 {
3fade00a6ac7 [project @ 2007-12-07 19:26:20 by jwe] jwe parents: 7036 diff changeset	7359 SPARSE_REDUCTION_OP (SparseComplexMatrix, Complex, *=,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7360 (cidx(j+1) - cidx(j) < nr ? 0.0 : 1.0), 1.0);
7269 3fade00a6ac7 [project @ 2007-12-07 19:26:20 by jwe] jwe parents: 7036 diff changeset	7361 }
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7362 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7363
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7364 SparseComplexMatrix
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7365 SparseComplexMatrix::sum (int dim) const
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7366 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7367 SPARSE_REDUCTION_OP (SparseComplexMatrix, Complex, +=, 0.0, 0.0);
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7368 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7369
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7370 SparseComplexMatrix
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7371 SparseComplexMatrix::sumsq (int dim) const
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7372 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7373 #define ROW_EXPR \
7269 3fade00a6ac7 [project @ 2007-12-07 19:26:20 by jwe] jwe parents: 7036 diff changeset	7374 Complex d = data (i); \
3fade00a6ac7 [project @ 2007-12-07 19:26:20 by jwe] jwe parents: 7036 diff changeset	7375 tmp [ridx(i)] += d * conj (d)
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7376
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7377 #define COL_EXPR \
7269 3fade00a6ac7 [project @ 2007-12-07 19:26:20 by jwe] jwe parents: 7036 diff changeset	7378 Complex d = data (i); \
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7379 tmp [j] += d * conj (d)
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7380
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7381 SPARSE_BASE_REDUCTION_OP (SparseComplexMatrix, Complex, ROW_EXPR,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7382 COL_EXPR, 0.0, 0.0);
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7383
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7384 #undef ROW_EXPR
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7385 #undef COL_EXPR
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7386 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7387
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7388 SparseMatrix SparseComplexMatrix::abs (void) const
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7389 {
5681 233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	7390 octave_idx_type nz = nnz ();
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	7391 octave_idx_type nc = cols ();
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7392
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7393 SparseMatrix retval (rows(), nc, nz);
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7394
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	7395 for (octave_idx_type i = 0; i < nc + 1; i++)
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7396 retval.cidx (i) = cidx (i);
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7397
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	7398 for (octave_idx_type i = 0; i < nz; i++)
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7399 {
5261 90a9058de7e8 [project @ 2005-03-31 02:48:38 by jwe] jwe parents: 5203 diff changeset	7400 retval.data (i) = std::abs (data (i));
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7401 retval.ridx (i) = ridx (i);
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7402 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7403
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7404 return retval;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7405 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7406
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7407 SparseComplexMatrix
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	7408 SparseComplexMatrix::diag (octave_idx_type k) const
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7409 {
7620 36594d5bbe13 Move diag function into the octave_value class David Bateman <dbateman@free.fr> parents: 7602 diff changeset	7410 return MSparse<Complex>::diag (k);
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7411 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7412
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7413 std::ostream&
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7414 operator << (std::ostream& os, const SparseComplexMatrix& a)
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7415 {
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	7416 octave_idx_type nc = a.cols ();
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7417
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7418 // add one to the printed indices to go from
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7419 // zero-based to one-based arrays
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	7420 for (octave_idx_type j = 0; j < nc; j++) {
10142 829e69ec3110 make OCTAVE_QUIT a function Jaroslav Hajek <highegg@gmail.com> parents: 9825 diff changeset	7421 octave_quit ();
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	7422 for (octave_idx_type i = a.cidx(j); i < a.cidx(j+1); i++) {
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7423 os << a.ridx(i) + 1 << " " << j + 1 << " ";
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7424 octave_write_complex (os, a.data(i));
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7425 os << "\n";
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7426 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7427 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7428
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7429 return os;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7430 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7431
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7432 std::istream&
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7433 operator >> (std::istream& is, SparseComplexMatrix& a)
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7434 {
9469 c6edba80dfae sanity checks for loading sparse matrices John W. Eaton <jwe@octave.org> parents: 9417 diff changeset	7435 typedef SparseComplexMatrix::element_type elt_type;
c6edba80dfae sanity checks for loading sparse matrices John W. Eaton <jwe@octave.org> parents: 9417 diff changeset	7436
c6edba80dfae sanity checks for loading sparse matrices John W. Eaton <jwe@octave.org> parents: 9417 diff changeset	7437 return read_sparse_matrix<elt_type> (is, a, octave_read_value<Complex>);
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7438 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7439
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7440 SparseComplexMatrix
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7441 operator * (const SparseComplexMatrix& m, const SparseMatrix& a)
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7442 {
5681 233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	7443 SPARSE_SPARSE_MUL (SparseComplexMatrix, Complex, double);
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7444 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7445
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7446 SparseComplexMatrix
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7447 operator * (const SparseMatrix& m, const SparseComplexMatrix& a)
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7448 {
5681 233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	7449 SPARSE_SPARSE_MUL (SparseComplexMatrix, Complex, Complex);
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7450 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7451
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7452 SparseComplexMatrix
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7453 operator * (const SparseComplexMatrix& m, const SparseComplexMatrix& a)
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7454 {
5681 233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	7455 SPARSE_SPARSE_MUL (SparseComplexMatrix, Complex, Complex);
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7456 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7457
5429 2042301733ce [project @ 2005-08-25 12:21:24 by dbateman] dbateman parents: 5404 diff changeset	7458 ComplexMatrix
2042301733ce [project @ 2005-08-25 12:21:24 by dbateman] dbateman parents: 5404 diff changeset	7459 operator * (const ComplexMatrix& m, const SparseMatrix& a)
2042301733ce [project @ 2005-08-25 12:21:24 by dbateman] dbateman parents: 5404 diff changeset	7460 {
5681 233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	7461 FULL_SPARSE_MUL (ComplexMatrix, double, Complex (0.,0.));
5429 2042301733ce [project @ 2005-08-25 12:21:24 by dbateman] dbateman parents: 5404 diff changeset	7462 }
2042301733ce [project @ 2005-08-25 12:21:24 by dbateman] dbateman parents: 5404 diff changeset	7463
2042301733ce [project @ 2005-08-25 12:21:24 by dbateman] dbateman parents: 5404 diff changeset	7464 ComplexMatrix
2042301733ce [project @ 2005-08-25 12:21:24 by dbateman] dbateman parents: 5404 diff changeset	7465 operator * (const Matrix& m, const SparseComplexMatrix& a)
2042301733ce [project @ 2005-08-25 12:21:24 by dbateman] dbateman parents: 5404 diff changeset	7466 {
5681 233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	7467 FULL_SPARSE_MUL (ComplexMatrix, Complex, Complex (0.,0.));
5429 2042301733ce [project @ 2005-08-25 12:21:24 by dbateman] dbateman parents: 5404 diff changeset	7468 }
2042301733ce [project @ 2005-08-25 12:21:24 by dbateman] dbateman parents: 5404 diff changeset	7469
2042301733ce [project @ 2005-08-25 12:21:24 by dbateman] dbateman parents: 5404 diff changeset	7470 ComplexMatrix
2042301733ce [project @ 2005-08-25 12:21:24 by dbateman] dbateman parents: 5404 diff changeset	7471 operator * (const ComplexMatrix& m, const SparseComplexMatrix& a)
2042301733ce [project @ 2005-08-25 12:21:24 by dbateman] dbateman parents: 5404 diff changeset	7472 {
5681 233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	7473 FULL_SPARSE_MUL (ComplexMatrix, Complex, Complex (0.,0.));
5429 2042301733ce [project @ 2005-08-25 12:21:24 by dbateman] dbateman parents: 5404 diff changeset	7474 }
2042301733ce [project @ 2005-08-25 12:21:24 by dbateman] dbateman parents: 5404 diff changeset	7475
2042301733ce [project @ 2005-08-25 12:21:24 by dbateman] dbateman parents: 5404 diff changeset	7476 ComplexMatrix
7802 1a446f28ce68 implement optimized sparse-dense transposed multiplication Jaroslav Hajek <highegg@gmail.com> parents: 7620 diff changeset	7477 mul_trans (const ComplexMatrix& m, const SparseComplexMatrix& a)
1a446f28ce68 implement optimized sparse-dense transposed multiplication Jaroslav Hajek <highegg@gmail.com> parents: 7620 diff changeset	7478 {
1a446f28ce68 implement optimized sparse-dense transposed multiplication Jaroslav Hajek <highegg@gmail.com> parents: 7620 diff changeset	7479 FULL_SPARSE_MUL_TRANS (ComplexMatrix, Complex, Complex (0.,0.), );
1a446f28ce68 implement optimized sparse-dense transposed multiplication Jaroslav Hajek <highegg@gmail.com> parents: 7620 diff changeset	7480 }
1a446f28ce68 implement optimized sparse-dense transposed multiplication Jaroslav Hajek <highegg@gmail.com> parents: 7620 diff changeset	7481
1a446f28ce68 implement optimized sparse-dense transposed multiplication Jaroslav Hajek <highegg@gmail.com> parents: 7620 diff changeset	7482 ComplexMatrix
1a446f28ce68 implement optimized sparse-dense transposed multiplication Jaroslav Hajek <highegg@gmail.com> parents: 7620 diff changeset	7483 mul_herm (const ComplexMatrix& m, const SparseComplexMatrix& a)
1a446f28ce68 implement optimized sparse-dense transposed multiplication Jaroslav Hajek <highegg@gmail.com> parents: 7620 diff changeset	7484 {
1a446f28ce68 implement optimized sparse-dense transposed multiplication Jaroslav Hajek <highegg@gmail.com> parents: 7620 diff changeset	7485 FULL_SPARSE_MUL_TRANS (ComplexMatrix, Complex, Complex (0.,0.), conj);
1a446f28ce68 implement optimized sparse-dense transposed multiplication Jaroslav Hajek <highegg@gmail.com> parents: 7620 diff changeset	7486 }
1a446f28ce68 implement optimized sparse-dense transposed multiplication Jaroslav Hajek <highegg@gmail.com> parents: 7620 diff changeset	7487
1a446f28ce68 implement optimized sparse-dense transposed multiplication Jaroslav Hajek <highegg@gmail.com> parents: 7620 diff changeset	7488 ComplexMatrix
5429 2042301733ce [project @ 2005-08-25 12:21:24 by dbateman] dbateman parents: 5404 diff changeset	7489 operator * (const SparseComplexMatrix& m, const Matrix& a)
2042301733ce [project @ 2005-08-25 12:21:24 by dbateman] dbateman parents: 5404 diff changeset	7490 {
5681 233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	7491 SPARSE_FULL_MUL (ComplexMatrix, double, Complex (0.,0.));
5429 2042301733ce [project @ 2005-08-25 12:21:24 by dbateman] dbateman parents: 5404 diff changeset	7492 }
2042301733ce [project @ 2005-08-25 12:21:24 by dbateman] dbateman parents: 5404 diff changeset	7493
2042301733ce [project @ 2005-08-25 12:21:24 by dbateman] dbateman parents: 5404 diff changeset	7494 ComplexMatrix
2042301733ce [project @ 2005-08-25 12:21:24 by dbateman] dbateman parents: 5404 diff changeset	7495 operator * (const SparseMatrix& m, const ComplexMatrix& a)
2042301733ce [project @ 2005-08-25 12:21:24 by dbateman] dbateman parents: 5404 diff changeset	7496 {
5681 233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	7497 SPARSE_FULL_MUL (ComplexMatrix, Complex, Complex (0.,0.));
5429 2042301733ce [project @ 2005-08-25 12:21:24 by dbateman] dbateman parents: 5404 diff changeset	7498 }
2042301733ce [project @ 2005-08-25 12:21:24 by dbateman] dbateman parents: 5404 diff changeset	7499
2042301733ce [project @ 2005-08-25 12:21:24 by dbateman] dbateman parents: 5404 diff changeset	7500 ComplexMatrix
2042301733ce [project @ 2005-08-25 12:21:24 by dbateman] dbateman parents: 5404 diff changeset	7501 operator * (const SparseComplexMatrix& m, const ComplexMatrix& a)
2042301733ce [project @ 2005-08-25 12:21:24 by dbateman] dbateman parents: 5404 diff changeset	7502 {
5681 233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	7503 SPARSE_FULL_MUL (ComplexMatrix, Complex, Complex (0.,0.));
5429 2042301733ce [project @ 2005-08-25 12:21:24 by dbateman] dbateman parents: 5404 diff changeset	7504 }
2042301733ce [project @ 2005-08-25 12:21:24 by dbateman] dbateman parents: 5404 diff changeset	7505
7802 1a446f28ce68 implement optimized sparse-dense transposed multiplication Jaroslav Hajek <highegg@gmail.com> parents: 7620 diff changeset	7506 ComplexMatrix
1a446f28ce68 implement optimized sparse-dense transposed multiplication Jaroslav Hajek <highegg@gmail.com> parents: 7620 diff changeset	7507 trans_mul (const SparseComplexMatrix& m, const ComplexMatrix& a)
1a446f28ce68 implement optimized sparse-dense transposed multiplication Jaroslav Hajek <highegg@gmail.com> parents: 7620 diff changeset	7508 {
1a446f28ce68 implement optimized sparse-dense transposed multiplication Jaroslav Hajek <highegg@gmail.com> parents: 7620 diff changeset	7509 SPARSE_FULL_TRANS_MUL (ComplexMatrix, Complex, Complex (0.,0.), );
1a446f28ce68 implement optimized sparse-dense transposed multiplication Jaroslav Hajek <highegg@gmail.com> parents: 7620 diff changeset	7510 }
1a446f28ce68 implement optimized sparse-dense transposed multiplication Jaroslav Hajek <highegg@gmail.com> parents: 7620 diff changeset	7511
1a446f28ce68 implement optimized sparse-dense transposed multiplication Jaroslav Hajek <highegg@gmail.com> parents: 7620 diff changeset	7512 ComplexMatrix
1a446f28ce68 implement optimized sparse-dense transposed multiplication Jaroslav Hajek <highegg@gmail.com> parents: 7620 diff changeset	7513 herm_mul (const SparseComplexMatrix& m, const ComplexMatrix& a)
1a446f28ce68 implement optimized sparse-dense transposed multiplication Jaroslav Hajek <highegg@gmail.com> parents: 7620 diff changeset	7514 {
1a446f28ce68 implement optimized sparse-dense transposed multiplication Jaroslav Hajek <highegg@gmail.com> parents: 7620 diff changeset	7515 SPARSE_FULL_TRANS_MUL (ComplexMatrix, Complex, Complex (0.,0.), conj);
1a446f28ce68 implement optimized sparse-dense transposed multiplication Jaroslav Hajek <highegg@gmail.com> parents: 7620 diff changeset	7516 }
1a446f28ce68 implement optimized sparse-dense transposed multiplication Jaroslav Hajek <highegg@gmail.com> parents: 7620 diff changeset	7517
8964 f4f4d65faaa0 Implement sparse * diagonal and diagonal * sparse operations, double-prec only. Jason Riedy <jason@acm.org> parents: 8920 diff changeset	7518 // diag * sparse and sparse * diag
f4f4d65faaa0 Implement sparse * diagonal and diagonal * sparse operations, double-prec only. Jason Riedy <jason@acm.org> parents: 8920 diff changeset	7519 SparseComplexMatrix
f4f4d65faaa0 Implement sparse * diagonal and diagonal * sparse operations, double-prec only. Jason Riedy <jason@acm.org> parents: 8920 diff changeset	7520 operator * (const DiagMatrix& d, const SparseComplexMatrix& a)
f4f4d65faaa0 Implement sparse * diagonal and diagonal * sparse operations, double-prec only. Jason Riedy <jason@acm.org> parents: 8920 diff changeset	7521 {
8967 5bbbf482909a fix omissions adjusting JR's patches Jaroslav Hajek <highegg@gmail.com> parents: 8966 diff changeset	7522 return do_mul_dm_sm<SparseComplexMatrix> (d, a);
8964 f4f4d65faaa0 Implement sparse * diagonal and diagonal * sparse operations, double-prec only. Jason Riedy <jason@acm.org> parents: 8920 diff changeset	7523 }
f4f4d65faaa0 Implement sparse * diagonal and diagonal * sparse operations, double-prec only. Jason Riedy <jason@acm.org> parents: 8920 diff changeset	7524 SparseComplexMatrix
f4f4d65faaa0 Implement sparse * diagonal and diagonal * sparse operations, double-prec only. Jason Riedy <jason@acm.org> parents: 8920 diff changeset	7525 operator * (const SparseComplexMatrix& a, const DiagMatrix& d)
f4f4d65faaa0 Implement sparse * diagonal and diagonal * sparse operations, double-prec only. Jason Riedy <jason@acm.org> parents: 8920 diff changeset	7526 {
8967 5bbbf482909a fix omissions adjusting JR's patches Jaroslav Hajek <highegg@gmail.com> parents: 8966 diff changeset	7527 return do_mul_sm_dm<SparseComplexMatrix> (a, d);
8964 f4f4d65faaa0 Implement sparse * diagonal and diagonal * sparse operations, double-prec only. Jason Riedy <jason@acm.org> parents: 8920 diff changeset	7528 }
f4f4d65faaa0 Implement sparse * diagonal and diagonal * sparse operations, double-prec only. Jason Riedy <jason@acm.org> parents: 8920 diff changeset	7529
f4f4d65faaa0 Implement sparse * diagonal and diagonal * sparse operations, double-prec only. Jason Riedy <jason@acm.org> parents: 8920 diff changeset	7530 SparseComplexMatrix
f4f4d65faaa0 Implement sparse * diagonal and diagonal * sparse operations, double-prec only. Jason Riedy <jason@acm.org> parents: 8920 diff changeset	7531 operator * (const ComplexDiagMatrix& d, const SparseMatrix& a)
f4f4d65faaa0 Implement sparse * diagonal and diagonal * sparse operations, double-prec only. Jason Riedy <jason@acm.org> parents: 8920 diff changeset	7532 {
8967 5bbbf482909a fix omissions adjusting JR's patches Jaroslav Hajek <highegg@gmail.com> parents: 8966 diff changeset	7533 return do_mul_dm_sm<SparseComplexMatrix> (d, a);
8964 f4f4d65faaa0 Implement sparse * diagonal and diagonal * sparse operations, double-prec only. Jason Riedy <jason@acm.org> parents: 8920 diff changeset	7534 }
f4f4d65faaa0 Implement sparse * diagonal and diagonal * sparse operations, double-prec only. Jason Riedy <jason@acm.org> parents: 8920 diff changeset	7535 SparseComplexMatrix
f4f4d65faaa0 Implement sparse * diagonal and diagonal * sparse operations, double-prec only. Jason Riedy <jason@acm.org> parents: 8920 diff changeset	7536 operator * (const SparseMatrix& a, const ComplexDiagMatrix& d)
f4f4d65faaa0 Implement sparse * diagonal and diagonal * sparse operations, double-prec only. Jason Riedy <jason@acm.org> parents: 8920 diff changeset	7537 {
8967 5bbbf482909a fix omissions adjusting JR's patches Jaroslav Hajek <highegg@gmail.com> parents: 8966 diff changeset	7538 return do_mul_sm_dm<SparseComplexMatrix> (a, d);
8964 f4f4d65faaa0 Implement sparse * diagonal and diagonal * sparse operations, double-prec only. Jason Riedy <jason@acm.org> parents: 8920 diff changeset	7539 }
f4f4d65faaa0 Implement sparse * diagonal and diagonal * sparse operations, double-prec only. Jason Riedy <jason@acm.org> parents: 8920 diff changeset	7540
f4f4d65faaa0 Implement sparse * diagonal and diagonal * sparse operations, double-prec only. Jason Riedy <jason@acm.org> parents: 8920 diff changeset	7541 SparseComplexMatrix
f4f4d65faaa0 Implement sparse * diagonal and diagonal * sparse operations, double-prec only. Jason Riedy <jason@acm.org> parents: 8920 diff changeset	7542 operator * (const ComplexDiagMatrix& d, const SparseComplexMatrix& a)
f4f4d65faaa0 Implement sparse * diagonal and diagonal * sparse operations, double-prec only. Jason Riedy <jason@acm.org> parents: 8920 diff changeset	7543 {
8967 5bbbf482909a fix omissions adjusting JR's patches Jaroslav Hajek <highegg@gmail.com> parents: 8966 diff changeset	7544 return do_mul_dm_sm<SparseComplexMatrix> (d, a);
8964 f4f4d65faaa0 Implement sparse * diagonal and diagonal * sparse operations, double-prec only. Jason Riedy <jason@acm.org> parents: 8920 diff changeset	7545 }
f4f4d65faaa0 Implement sparse * diagonal and diagonal * sparse operations, double-prec only. Jason Riedy <jason@acm.org> parents: 8920 diff changeset	7546 SparseComplexMatrix
f4f4d65faaa0 Implement sparse * diagonal and diagonal * sparse operations, double-prec only. Jason Riedy <jason@acm.org> parents: 8920 diff changeset	7547 operator * (const SparseComplexMatrix& a, const ComplexDiagMatrix& d)
f4f4d65faaa0 Implement sparse * diagonal and diagonal * sparse operations, double-prec only. Jason Riedy <jason@acm.org> parents: 8920 diff changeset	7548 {
8967 5bbbf482909a fix omissions adjusting JR's patches Jaroslav Hajek <highegg@gmail.com> parents: 8966 diff changeset	7549 return do_mul_sm_dm<SparseComplexMatrix> (a, d);
8964 f4f4d65faaa0 Implement sparse * diagonal and diagonal * sparse operations, double-prec only. Jason Riedy <jason@acm.org> parents: 8920 diff changeset	7550 }
f4f4d65faaa0 Implement sparse * diagonal and diagonal * sparse operations, double-prec only. Jason Riedy <jason@acm.org> parents: 8920 diff changeset	7551
8966 1bba53c0a38d Implement diag + sparse, diag - sparse, sparse + diag, sparse - diag. Jason Riedy <jason@acm.org> parents: 8964 diff changeset	7552 SparseComplexMatrix
1bba53c0a38d Implement diag + sparse, diag - sparse, sparse + diag, sparse - diag. Jason Riedy <jason@acm.org> parents: 8964 diff changeset	7553 operator + (const ComplexDiagMatrix& d, const SparseMatrix& a)
1bba53c0a38d Implement diag + sparse, diag - sparse, sparse + diag, sparse - diag. Jason Riedy <jason@acm.org> parents: 8964 diff changeset	7554 {
8967 5bbbf482909a fix omissions adjusting JR's patches Jaroslav Hajek <highegg@gmail.com> parents: 8966 diff changeset	7555 return do_add_dm_sm<SparseComplexMatrix> (d, a);
8966 1bba53c0a38d Implement diag + sparse, diag - sparse, sparse + diag, sparse - diag. Jason Riedy <jason@acm.org> parents: 8964 diff changeset	7556 }
1bba53c0a38d Implement diag + sparse, diag - sparse, sparse + diag, sparse - diag. Jason Riedy <jason@acm.org> parents: 8964 diff changeset	7557 SparseComplexMatrix
1bba53c0a38d Implement diag + sparse, diag - sparse, sparse + diag, sparse - diag. Jason Riedy <jason@acm.org> parents: 8964 diff changeset	7558 operator + (const DiagMatrix& d, const SparseComplexMatrix& a)
1bba53c0a38d Implement diag + sparse, diag - sparse, sparse + diag, sparse - diag. Jason Riedy <jason@acm.org> parents: 8964 diff changeset	7559 {
8967 5bbbf482909a fix omissions adjusting JR's patches Jaroslav Hajek <highegg@gmail.com> parents: 8966 diff changeset	7560 return do_add_dm_sm<SparseComplexMatrix> (d, a);
8966 1bba53c0a38d Implement diag + sparse, diag - sparse, sparse + diag, sparse - diag. Jason Riedy <jason@acm.org> parents: 8964 diff changeset	7561 }
1bba53c0a38d Implement diag + sparse, diag - sparse, sparse + diag, sparse - diag. Jason Riedy <jason@acm.org> parents: 8964 diff changeset	7562 SparseComplexMatrix
1bba53c0a38d Implement diag + sparse, diag - sparse, sparse + diag, sparse - diag. Jason Riedy <jason@acm.org> parents: 8964 diff changeset	7563 operator + (const ComplexDiagMatrix& d, const SparseComplexMatrix& a)
1bba53c0a38d Implement diag + sparse, diag - sparse, sparse + diag, sparse - diag. Jason Riedy <jason@acm.org> parents: 8964 diff changeset	7564 {
8967 5bbbf482909a fix omissions adjusting JR's patches Jaroslav Hajek <highegg@gmail.com> parents: 8966 diff changeset	7565 return do_add_dm_sm<SparseComplexMatrix> (d, a);
8966 1bba53c0a38d Implement diag + sparse, diag - sparse, sparse + diag, sparse - diag. Jason Riedy <jason@acm.org> parents: 8964 diff changeset	7566 }
1bba53c0a38d Implement diag + sparse, diag - sparse, sparse + diag, sparse - diag. Jason Riedy <jason@acm.org> parents: 8964 diff changeset	7567 SparseComplexMatrix
1bba53c0a38d Implement diag + sparse, diag - sparse, sparse + diag, sparse - diag. Jason Riedy <jason@acm.org> parents: 8964 diff changeset	7568 operator + (const SparseMatrix& a, const ComplexDiagMatrix& d)
1bba53c0a38d Implement diag + sparse, diag - sparse, sparse + diag, sparse - diag. Jason Riedy <jason@acm.org> parents: 8964 diff changeset	7569 {
8967 5bbbf482909a fix omissions adjusting JR's patches Jaroslav Hajek <highegg@gmail.com> parents: 8966 diff changeset	7570 return do_add_sm_dm<SparseComplexMatrix> (a, d);
8966 1bba53c0a38d Implement diag + sparse, diag - sparse, sparse + diag, sparse - diag. Jason Riedy <jason@acm.org> parents: 8964 diff changeset	7571 }
1bba53c0a38d Implement diag + sparse, diag - sparse, sparse + diag, sparse - diag. Jason Riedy <jason@acm.org> parents: 8964 diff changeset	7572 SparseComplexMatrix
1bba53c0a38d Implement diag + sparse, diag - sparse, sparse + diag, sparse - diag. Jason Riedy <jason@acm.org> parents: 8964 diff changeset	7573 operator + (const SparseComplexMatrix& a, const DiagMatrix& d)
1bba53c0a38d Implement diag + sparse, diag - sparse, sparse + diag, sparse - diag. Jason Riedy <jason@acm.org> parents: 8964 diff changeset	7574 {
8967 5bbbf482909a fix omissions adjusting JR's patches Jaroslav Hajek <highegg@gmail.com> parents: 8966 diff changeset	7575 return do_add_sm_dm<SparseComplexMatrix> (a, d);
8966 1bba53c0a38d Implement diag + sparse, diag - sparse, sparse + diag, sparse - diag. Jason Riedy <jason@acm.org> parents: 8964 diff changeset	7576 }
1bba53c0a38d Implement diag + sparse, diag - sparse, sparse + diag, sparse - diag. Jason Riedy <jason@acm.org> parents: 8964 diff changeset	7577 SparseComplexMatrix
1bba53c0a38d Implement diag + sparse, diag - sparse, sparse + diag, sparse - diag. Jason Riedy <jason@acm.org> parents: 8964 diff changeset	7578 operator + (const SparseComplexMatrix&a, const ComplexDiagMatrix& d)
1bba53c0a38d Implement diag + sparse, diag - sparse, sparse + diag, sparse - diag. Jason Riedy <jason@acm.org> parents: 8964 diff changeset	7579 {
8967 5bbbf482909a fix omissions adjusting JR's patches Jaroslav Hajek <highegg@gmail.com> parents: 8966 diff changeset	7580 return do_add_sm_dm<SparseComplexMatrix> (a, d);
8966 1bba53c0a38d Implement diag + sparse, diag - sparse, sparse + diag, sparse - diag. Jason Riedy <jason@acm.org> parents: 8964 diff changeset	7581 }
1bba53c0a38d Implement diag + sparse, diag - sparse, sparse + diag, sparse - diag. Jason Riedy <jason@acm.org> parents: 8964 diff changeset	7582
1bba53c0a38d Implement diag + sparse, diag - sparse, sparse + diag, sparse - diag. Jason Riedy <jason@acm.org> parents: 8964 diff changeset	7583 SparseComplexMatrix
1bba53c0a38d Implement diag + sparse, diag - sparse, sparse + diag, sparse - diag. Jason Riedy <jason@acm.org> parents: 8964 diff changeset	7584 operator - (const ComplexDiagMatrix& d, const SparseMatrix& a)
1bba53c0a38d Implement diag + sparse, diag - sparse, sparse + diag, sparse - diag. Jason Riedy <jason@acm.org> parents: 8964 diff changeset	7585 {
8967 5bbbf482909a fix omissions adjusting JR's patches Jaroslav Hajek <highegg@gmail.com> parents: 8966 diff changeset	7586 return do_sub_dm_sm<SparseComplexMatrix> (d, a);
8966 1bba53c0a38d Implement diag + sparse, diag - sparse, sparse + diag, sparse - diag. Jason Riedy <jason@acm.org> parents: 8964 diff changeset	7587 }
1bba53c0a38d Implement diag + sparse, diag - sparse, sparse + diag, sparse - diag. Jason Riedy <jason@acm.org> parents: 8964 diff changeset	7588 SparseComplexMatrix
1bba53c0a38d Implement diag + sparse, diag - sparse, sparse + diag, sparse - diag. Jason Riedy <jason@acm.org> parents: 8964 diff changeset	7589 operator - (const DiagMatrix& d, const SparseComplexMatrix& a)
1bba53c0a38d Implement diag + sparse, diag - sparse, sparse + diag, sparse - diag. Jason Riedy <jason@acm.org> parents: 8964 diff changeset	7590 {
8967 5bbbf482909a fix omissions adjusting JR's patches Jaroslav Hajek <highegg@gmail.com> parents: 8966 diff changeset	7591 return do_sub_dm_sm<SparseComplexMatrix> (d, a);
8966 1bba53c0a38d Implement diag + sparse, diag - sparse, sparse + diag, sparse - diag. Jason Riedy <jason@acm.org> parents: 8964 diff changeset	7592 }
1bba53c0a38d Implement diag + sparse, diag - sparse, sparse + diag, sparse - diag. Jason Riedy <jason@acm.org> parents: 8964 diff changeset	7593 SparseComplexMatrix
1bba53c0a38d Implement diag + sparse, diag - sparse, sparse + diag, sparse - diag. Jason Riedy <jason@acm.org> parents: 8964 diff changeset	7594 operator - (const ComplexDiagMatrix& d, const SparseComplexMatrix& a)
1bba53c0a38d Implement diag + sparse, diag - sparse, sparse + diag, sparse - diag. Jason Riedy <jason@acm.org> parents: 8964 diff changeset	7595 {
8967 5bbbf482909a fix omissions adjusting JR's patches Jaroslav Hajek <highegg@gmail.com> parents: 8966 diff changeset	7596 return do_sub_dm_sm<SparseComplexMatrix> (d, a);
8966 1bba53c0a38d Implement diag + sparse, diag - sparse, sparse + diag, sparse - diag. Jason Riedy <jason@acm.org> parents: 8964 diff changeset	7597 }
1bba53c0a38d Implement diag + sparse, diag - sparse, sparse + diag, sparse - diag. Jason Riedy <jason@acm.org> parents: 8964 diff changeset	7598 SparseComplexMatrix
1bba53c0a38d Implement diag + sparse, diag - sparse, sparse + diag, sparse - diag. Jason Riedy <jason@acm.org> parents: 8964 diff changeset	7599 operator - (const SparseMatrix& a, const ComplexDiagMatrix& d)
1bba53c0a38d Implement diag + sparse, diag - sparse, sparse + diag, sparse - diag. Jason Riedy <jason@acm.org> parents: 8964 diff changeset	7600 {
8967 5bbbf482909a fix omissions adjusting JR's patches Jaroslav Hajek <highegg@gmail.com> parents: 8966 diff changeset	7601 return do_sub_sm_dm<SparseComplexMatrix> (a, d);
8966 1bba53c0a38d Implement diag + sparse, diag - sparse, sparse + diag, sparse - diag. Jason Riedy <jason@acm.org> parents: 8964 diff changeset	7602 }
1bba53c0a38d Implement diag + sparse, diag - sparse, sparse + diag, sparse - diag. Jason Riedy <jason@acm.org> parents: 8964 diff changeset	7603 SparseComplexMatrix
1bba53c0a38d Implement diag + sparse, diag - sparse, sparse + diag, sparse - diag. Jason Riedy <jason@acm.org> parents: 8964 diff changeset	7604 operator - (const SparseComplexMatrix& a, const DiagMatrix& d)
1bba53c0a38d Implement diag + sparse, diag - sparse, sparse + diag, sparse - diag. Jason Riedy <jason@acm.org> parents: 8964 diff changeset	7605 {
8967 5bbbf482909a fix omissions adjusting JR's patches Jaroslav Hajek <highegg@gmail.com> parents: 8966 diff changeset	7606 return do_sub_sm_dm<SparseComplexMatrix> (a, d);
8966 1bba53c0a38d Implement diag + sparse, diag - sparse, sparse + diag, sparse - diag. Jason Riedy <jason@acm.org> parents: 8964 diff changeset	7607 }
1bba53c0a38d Implement diag + sparse, diag - sparse, sparse + diag, sparse - diag. Jason Riedy <jason@acm.org> parents: 8964 diff changeset	7608 SparseComplexMatrix
1bba53c0a38d Implement diag + sparse, diag - sparse, sparse + diag, sparse - diag. Jason Riedy <jason@acm.org> parents: 8964 diff changeset	7609 operator - (const SparseComplexMatrix&a, const ComplexDiagMatrix& d)
1bba53c0a38d Implement diag + sparse, diag - sparse, sparse + diag, sparse - diag. Jason Riedy <jason@acm.org> parents: 8964 diff changeset	7610 {
8967 5bbbf482909a fix omissions adjusting JR's patches Jaroslav Hajek <highegg@gmail.com> parents: 8966 diff changeset	7611 return do_sub_sm_dm<SparseComplexMatrix> (a, d);
8966 1bba53c0a38d Implement diag + sparse, diag - sparse, sparse + diag, sparse - diag. Jason Riedy <jason@acm.org> parents: 8964 diff changeset	7612 }
1bba53c0a38d Implement diag + sparse, diag - sparse, sparse + diag, sparse - diag. Jason Riedy <jason@acm.org> parents: 8964 diff changeset	7613
8968 91d53dc37f79 Add perm * sparse, perm \ sparse, sparse * perm, and sparse / perm operations. Jason Riedy <jason@acm.org> parents: 8967 diff changeset	7614 // perm * sparse and sparse * perm
91d53dc37f79 Add perm * sparse, perm \ sparse, sparse * perm, and sparse / perm operations. Jason Riedy <jason@acm.org> parents: 8967 diff changeset	7615
91d53dc37f79 Add perm * sparse, perm \ sparse, sparse * perm, and sparse / perm operations. Jason Riedy <jason@acm.org> parents: 8967 diff changeset	7616 SparseComplexMatrix
91d53dc37f79 Add perm * sparse, perm \ sparse, sparse * perm, and sparse / perm operations. Jason Riedy <jason@acm.org> parents: 8967 diff changeset	7617 operator * (const PermMatrix& p, const SparseComplexMatrix& a)
91d53dc37f79 Add perm * sparse, perm \ sparse, sparse * perm, and sparse / perm operations. Jason Riedy <jason@acm.org> parents: 8967 diff changeset	7618 {
91d53dc37f79 Add perm * sparse, perm \ sparse, sparse * perm, and sparse / perm operations. Jason Riedy <jason@acm.org> parents: 8967 diff changeset	7619 return octinternal_do_mul_pm_sm (p, a);
91d53dc37f79 Add perm * sparse, perm \ sparse, sparse * perm, and sparse / perm operations. Jason Riedy <jason@acm.org> parents: 8967 diff changeset	7620 }
91d53dc37f79 Add perm * sparse, perm \ sparse, sparse * perm, and sparse / perm operations. Jason Riedy <jason@acm.org> parents: 8967 diff changeset	7621
91d53dc37f79 Add perm * sparse, perm \ sparse, sparse * perm, and sparse / perm operations. Jason Riedy <jason@acm.org> parents: 8967 diff changeset	7622 SparseComplexMatrix
91d53dc37f79 Add perm * sparse, perm \ sparse, sparse * perm, and sparse / perm operations. Jason Riedy <jason@acm.org> parents: 8967 diff changeset	7623 operator * (const SparseComplexMatrix& a, const PermMatrix& p)
91d53dc37f79 Add perm * sparse, perm \ sparse, sparse * perm, and sparse / perm operations. Jason Riedy <jason@acm.org> parents: 8967 diff changeset	7624 {
91d53dc37f79 Add perm * sparse, perm \ sparse, sparse * perm, and sparse / perm operations. Jason Riedy <jason@acm.org> parents: 8967 diff changeset	7625 return octinternal_do_mul_sm_pm (a, p);
91d53dc37f79 Add perm * sparse, perm \ sparse, sparse * perm, and sparse / perm operations. Jason Riedy <jason@acm.org> parents: 8967 diff changeset	7626 }
91d53dc37f79 Add perm * sparse, perm \ sparse, sparse * perm, and sparse / perm operations. Jason Riedy <jason@acm.org> parents: 8967 diff changeset	7627
5775 ace8d8d26933 [project @ 2006-04-24 19:13:06 by jwe] jwe parents: 5760 diff changeset	7628 // FIXME -- it would be nice to share code among the min/max
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7629 // functions below.
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7630
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7631 #define EMPTY_RETURN_CHECK(T) \
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7632 if (nr == 0 \|\| nc == 0) \
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7633 return T (nr, nc);
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7634
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7635 SparseComplexMatrix
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7636 min (const Complex& c, const SparseComplexMatrix& m)
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7637 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7638 SparseComplexMatrix result;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7639
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	7640 octave_idx_type nr = m.rows ();
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	7641 octave_idx_type nc = m.columns ();
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7642
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7643 EMPTY_RETURN_CHECK (SparseComplexMatrix);
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7644
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7645 if (abs(c) == 0.)
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7646 return SparseComplexMatrix (nr, nc);
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7647 else
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7648 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7649 result = SparseComplexMatrix (m);
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7650
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	7651 for (octave_idx_type j = 0; j < nc; j++)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7652 for (octave_idx_type i = m.cidx(j); i < m.cidx(j+1); i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7653 result.data(i) = xmin(c, m.data(i));
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7654 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7655
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7656 return result;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7657 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7658
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7659 SparseComplexMatrix
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7660 min (const SparseComplexMatrix& m, const Complex& c)
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7661 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7662 return min (c, m);
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7663 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7664
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7665 SparseComplexMatrix
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7666 min (const SparseComplexMatrix& a, const SparseComplexMatrix& b)
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7667 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7668 SparseComplexMatrix r;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7669
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7670 if ((a.rows() == b.rows()) && (a.cols() == b.cols()))
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7671 {
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	7672 octave_idx_type a_nr = a.rows ();
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	7673 octave_idx_type a_nc = a.cols ();
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	7674
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	7675 octave_idx_type b_nr = b.rows ();
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	7676 octave_idx_type b_nc = b.cols ();
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7677
5681 233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	7678 if (a_nr == 0 \|\| b_nc == 0 \|\| a.nnz () == 0 \|\| b.nnz () == 0)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7679 return SparseComplexMatrix (a_nr, a_nc);
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7680
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7681 if (a_nr != b_nr \|\| a_nc != b_nc)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7682 gripe_nonconformant ("min", a_nr, a_nc, b_nr, b_nc);
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7683 else
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7684 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7685 r = SparseComplexMatrix (a_nr, a_nc, (a.nnz () + b.nnz ()));
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7686
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7687 octave_idx_type jx = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7688 r.cidx (0) = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7689 for (octave_idx_type i = 0 ; i < a_nc ; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7690 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7691 octave_idx_type ja = a.cidx(i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7692 octave_idx_type ja_max = a.cidx(i+1);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7693 bool ja_lt_max= ja < ja_max;
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7694
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7695 octave_idx_type jb = b.cidx(i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7696 octave_idx_type jb_max = b.cidx(i+1);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7697 bool jb_lt_max = jb < jb_max;
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7698
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7699 while (ja_lt_max \|\| jb_lt_max )
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7700 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7701 octave_quit ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7702 if ((! jb_lt_max) \|\|
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7703 (ja_lt_max && (a.ridx(ja) < b.ridx(jb))))
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7704 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7705 Complex tmp = xmin (a.data(ja), 0.);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7706 if (tmp != 0.)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7707 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7708 r.ridx(jx) = a.ridx(ja);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7709 r.data(jx) = tmp;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7710 jx++;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7711 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7712 ja++;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7713 ja_lt_max= ja < ja_max;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7714 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7715 else if (( !ja_lt_max ) \|\|
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7716 (jb_lt_max && (b.ridx(jb) < a.ridx(ja)) ) )
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7717 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7718 Complex tmp = xmin (0., b.data(jb));
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7719 if (tmp != 0.)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7720 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7721 r.ridx(jx) = b.ridx(jb);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7722 r.data(jx) = tmp;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7723 jx++;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7724 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7725 jb++;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7726 jb_lt_max= jb < jb_max;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7727 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7728 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7729 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7730 Complex tmp = xmin (a.data(ja), b.data(jb));
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7731 if (tmp != 0.)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7732 {
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7733 r.data(jx) = tmp;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7734 r.ridx(jx) = a.ridx(ja);
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7735 jx++;
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7736 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7737 ja++;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7738 ja_lt_max= ja < ja_max;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7739 jb++;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7740 jb_lt_max= jb < jb_max;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7741 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7742 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7743 r.cidx(i+1) = jx;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7744 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7745
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7746 r.maybe_compress ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7747 }
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7748 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7749 else
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7750 (*current_liboctave_error_handler) ("matrix size mismatch");
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7751
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7752 return r;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7753 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7754
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7755 SparseComplexMatrix
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7756 max (const Complex& c, const SparseComplexMatrix& m)
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7757 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7758 SparseComplexMatrix result;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7759
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	7760 octave_idx_type nr = m.rows ();
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	7761 octave_idx_type nc = m.columns ();
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7762
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7763 EMPTY_RETURN_CHECK (SparseComplexMatrix);
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7764
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7765 // Count the number of non-zero elements
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7766 if (xmax(c, 0.) != 0.)
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7767 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7768 result = SparseComplexMatrix (nr, nc, c);
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	7769 for (octave_idx_type j = 0; j < nc; j++)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7770 for (octave_idx_type i = m.cidx(j); i < m.cidx(j+1); i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7771 result.xdata(m.ridx(i) + j * nr) = xmax (c, m.data(i));
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7772 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7773 else
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7774 result = SparseComplexMatrix (m);
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7775
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7776 return result;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7777 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7778
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7779 SparseComplexMatrix
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7780 max (const SparseComplexMatrix& m, const Complex& c)
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7781 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7782 return max (c, m);
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7783 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7784
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7785 SparseComplexMatrix
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7786 max (const SparseComplexMatrix& a, const SparseComplexMatrix& b)
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7787 {
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7788 SparseComplexMatrix r;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7789
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7790 if ((a.rows() == b.rows()) && (a.cols() == b.cols()))
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7791 {
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	7792 octave_idx_type a_nr = a.rows ();
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	7793 octave_idx_type a_nc = a.cols ();
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	7794
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	7795 octave_idx_type b_nr = b.rows ();
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5261 diff changeset	7796 octave_idx_type b_nc = b.cols ();
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7797
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7798 if (a_nr == 0 \|\| b_nc == 0)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7799 return SparseComplexMatrix (a_nr, a_nc);
5681 233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	7800 if (a.nnz () == 0)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7801 return SparseComplexMatrix (b);
5681 233d98d95659 [project @ 2006-03-16 17:48:55 by dbateman] dbateman parents: 5648 diff changeset	7802 if (b.nnz () == 0)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7803 return SparseComplexMatrix (a);
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7804
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7805 if (a_nr != b_nr \|\| a_nc != b_nc)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7806 gripe_nonconformant ("min", a_nr, a_nc, b_nr, b_nc);
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7807 else
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7808 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7809 r = SparseComplexMatrix (a_nr, a_nc, (a.nnz () + b.nnz ()));
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7810
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7811 octave_idx_type jx = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7812 r.cidx (0) = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7813 for (octave_idx_type i = 0 ; i < a_nc ; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7814 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7815 octave_idx_type ja = a.cidx(i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7816 octave_idx_type ja_max = a.cidx(i+1);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7817 bool ja_lt_max= ja < ja_max;
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7818
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7819 octave_idx_type jb = b.cidx(i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7820 octave_idx_type jb_max = b.cidx(i+1);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7821 bool jb_lt_max = jb < jb_max;
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7822
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7823 while (ja_lt_max \|\| jb_lt_max )
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7824 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7825 octave_quit ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7826 if ((! jb_lt_max) \|\|
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7827 (ja_lt_max && (a.ridx(ja) < b.ridx(jb))))
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7828 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7829 Complex tmp = xmax (a.data(ja), 0.);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7830 if (tmp != 0.)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7831 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7832 r.ridx(jx) = a.ridx(ja);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7833 r.data(jx) = tmp;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7834 jx++;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7835 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7836 ja++;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7837 ja_lt_max= ja < ja_max;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7838 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7839 else if (( !ja_lt_max ) \|\|
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7840 (jb_lt_max && (b.ridx(jb) < a.ridx(ja)) ) )
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7841 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7842 Complex tmp = xmax (0., b.data(jb));
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7843 if (tmp != 0.)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7844 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7845 r.ridx(jx) = b.ridx(jb);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7846 r.data(jx) = tmp;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7847 jx++;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7848 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7849 jb++;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7850 jb_lt_max= jb < jb_max;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7851 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7852 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7853 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7854 Complex tmp = xmax (a.data(ja), b.data(jb));
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7855 if (tmp != 0.)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7856 {
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7857 r.data(jx) = tmp;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7858 r.ridx(jx) = a.ridx(ja);
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7859 jx++;
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7860 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7861 ja++;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7862 ja_lt_max= ja < ja_max;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7863 jb++;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7864 jb_lt_max= jb < jb_max;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7865 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7866 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7867 r.cidx(i+1) = jx;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7868 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7869
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7870 r.maybe_compress ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7871 }
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7872 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7873 else
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7874 (*current_liboctave_error_handler) ("matrix size mismatch");
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7875
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7876 return r;
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7877 }
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7878
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7879 SPARSE_SMS_CMP_OPS (SparseComplexMatrix, 0.0, real, Complex,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7880 0.0, real)
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7881 SPARSE_SMS_BOOL_OPS (SparseComplexMatrix, Complex, 0.0)
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7882
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7883 SPARSE_SSM_CMP_OPS (Complex, 0.0, real, SparseComplexMatrix,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7884 0.0, real)
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7885 SPARSE_SSM_BOOL_OPS (Complex, SparseComplexMatrix, 0.0)
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7886
57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7887 SPARSE_SMSM_CMP_OPS (SparseComplexMatrix, 0.0, real, SparseComplexMatrix,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	7888 0.0, real)
5164 57077d0ddc8e [project @ 2005-02-25 19:55:24 by jwe] jwe parents: diff changeset	7889 SPARSE_SMSM_BOOL_OPS (SparseComplexMatrix, SparseComplexMatrix, 0.0)

Mercurial > hg > octave-nkf

annotate liboctave/CSparse.cc @ 10447:12d25a1d84bf