octave-nkf: liboctave/array/dMatrix.cc annotate

annotate liboctave/array/dMatrix.cc @ 19040:479d1d3cb5c3

maint: Periodic merge of gui-release to default.

author	John W. Eaton <jwe@octave.org>
date	Thu, 19 Jun 2014 18:08:00 -0400
parents	aa9ca67f09fb b314efd58072
children	d20c81d3cd21

rev	line source
1993 1b57120c997b [project @ 1996-03-03 01:16:15 by jwe] jwe parents: 1968 diff changeset	1 // Matrix manipulations.
458 38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2 /*
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	3
17744 d63878346099 maint: Update copyright notices for release. John W. Eaton <jwe@octave.org> parents: 17663 diff changeset	4 Copyright (C) 1994-2013 John W. Eaton
7803 9bcb31cc56be add missing copyright Jaroslav Hajek <highegg@gmail.com> parents: 7801 diff changeset	5 Copyright (C) 2008 Jaroslav Hajek
9601 a9b37bae1802 add a couple of missing copyright statements Jaroslav Hajek <highegg@gmail.com> parents: 9578 diff changeset	6 Copyright (C) 2009 VZLU Prague, a.s.
458 38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	7
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	8 This file is part of Octave.
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	9
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	10 Octave is free software; you can redistribute it and/or modify it
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	11 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: 6926 diff changeset	12 Free Software Foundation; either version 3 of the License, or (at your
93c65f2a5668 [project @ 2007-10-12 06:40:56 by jwe] jwe parents: 6926 diff changeset	13 option) any later version.
458 38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	14
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	15 Octave is distributed in the hope that it will be useful, but WITHOUT
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	16 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	17 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	18 for more details.
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	19
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	20 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: 6926 diff changeset	21 along with Octave; see the file COPYING. If not, see
93c65f2a5668 [project @ 2007-10-12 06:40:56 by jwe] jwe parents: 6926 diff changeset	22 <http://www.gnu.org/licenses/>.
458 38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	23
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	24 */
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	25
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	26 #ifdef HAVE_CONFIG_H
1192 b6360f2d4fa6 [project @ 1995-03-30 21:38:35 by jwe] jwe parents: 1011 diff changeset	27 #include <config.h>
458 38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	28 #endif
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	29
1367 9f9131a8d706 [project @ 1995-09-06 00:07:03 by jwe] jwe parents: 1365 diff changeset	30 #include <cfloat>
9f9131a8d706 [project @ 1995-09-06 00:07:03 by jwe] jwe parents: 1365 diff changeset	31
3503 d14c483b3c12 [project @ 2000-02-01 04:06:07 by jwe] jwe parents: 3480 diff changeset	32 #include <iostream>
6209 15b299f6803d [project @ 2006-12-07 01:17:26 by jwe] jwe parents: 6207 diff changeset	33 #include <vector>
1367 9f9131a8d706 [project @ 1995-09-06 00:07:03 by jwe] jwe parents: 1365 diff changeset	34
4669 334a27c8f453 [project @ 2003-11-26 07:02:42 by jwe] jwe parents: 4634 diff changeset	35 #include "Array-util.h"
2317 8c09c04f7747 [project @ 1996-07-14 22:30:15 by jwe] jwe parents: 1993 diff changeset	36 #include "byte-swap.h"
2828 92826d6e8bd9 [project @ 1997-03-25 23:41:41 by jwe] jwe parents: 2800 diff changeset	37 #include "dMatrix.h"
1819 8b8498bf8ec5 [project @ 1996-01-31 11:29:17 by jwe] jwe parents: 1698 diff changeset	38 #include "dbleAEPBAL.h"
8335 64cf956a109c templatize & fix DET Jaroslav Hajek <highegg@gmail.com> parents: 8211 diff changeset	39 #include "DET.h"
1819 8b8498bf8ec5 [project @ 1996-01-31 11:29:17 by jwe] jwe parents: 1698 diff changeset	40 #include "dbleSCHUR.h"
740 d8295febb0df [project @ 1994-09-30 14:42:37 by jwe] jwe parents: 677 diff changeset	41 #include "dbleSVD.h"
6207 3c92b8d892dd [project @ 2006-12-06 20:19:14 by dbateman] dbateman parents: 6162 diff changeset	42 #include "dbleCHOL.h"
1847 2ffe49eb95a5 [project @ 1996-02-03 12:47:55 by jwe] jwe parents: 1819 diff changeset	43 #include "f77-fcn.h"
7503 8c32f95c2639 convert mapper functions to new format David Bateman <dbateman@free.fr> parents: 7488 diff changeset	44 #include "functor.h"
458 38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	45 #include "lo-error.h"
8377 25bc2d31e1bf improve OCTAVE_LOCAL_BUFFER Jaroslav Hajek <highegg@gmail.com> parents: 8375 diff changeset	46 #include "oct-locbuf.h"
2354 2ce6e1ec9b53 [project @ 1996-08-20 22:44:25 by jwe] jwe parents: 2349 diff changeset	47 #include "lo-ieee.h"
2ce6e1ec9b53 [project @ 1996-08-20 22:44:25 by jwe] jwe parents: 2349 diff changeset	48 #include "lo-mappers.h"
1968 a2e206524aa0 [project @ 1996-02-17 02:54:24 by jwe] jwe parents: 1959 diff changeset	49 #include "lo-utils.h"
1367 9f9131a8d706 [project @ 1995-09-06 00:07:03 by jwe] jwe parents: 1365 diff changeset	50 #include "mx-base.h"
2828 92826d6e8bd9 [project @ 1997-03-25 23:41:41 by jwe] jwe parents: 2800 diff changeset	51 #include "mx-m-dm.h"
3176 fccab8e7d35f [project @ 1998-05-18 20:33:31 by jwe] jwe parents: 3145 diff changeset	52 #include "mx-dm-m.h"
1367 9f9131a8d706 [project @ 1995-09-06 00:07:03 by jwe] jwe parents: 1365 diff changeset	53 #include "mx-inlines.cc"
8774 b756ce0002db split implementation and interface in mx-op-defs and MArray-defs Jaroslav Hajek <highegg@gmail.com> parents: 8743 diff changeset	54 #include "mx-op-defs.h"
1650 23aa282707e8 [project @ 1995-12-20 06:53:12 by jwe] jwe parents: 1574 diff changeset	55 #include "oct-cmplx.h"
9523 0ce82753dd72 more configure changes for libraries John W. Eaton <jwe@octave.org> parents: 9469 diff changeset	56 #include "oct-fftw.h"
8336 9813c07ca946 make det take advantage of matrix type Jaroslav Hajek <highegg@gmail.com> parents: 8335 diff changeset	57 #include "oct-norm.h"
4153 6b96ce9f5743 [project @ 2002-11-06 20:38:49 by jwe] jwe parents: 4130 diff changeset	58 #include "quit.h"
458 38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	59
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	60 // Fortran functions we call.
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	61
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	62 extern "C"
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	63 {
7478 d7c5b101bb0f ilaenv --> xilaenv John W. Eaton <jwe@octave.org> parents: 7477 diff changeset	64 F77_RET_T
11518 141b3fb5cef7 style fixes John W. Eaton <jwe@octave.org> parents: 11516 diff changeset	65 F77_FUNC (xilaenv, XILAENV) (const octave_idx_type&,
141b3fb5cef7 style fixes John W. Eaton <jwe@octave.org> parents: 11516 diff changeset	66 F77_CONST_CHAR_ARG_DECL,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	67 F77_CONST_CHAR_ARG_DECL,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	68 const octave_idx_type&, const octave_idx_type&,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	69 const octave_idx_type&, const octave_idx_type&,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	70 octave_idx_type&
11518 141b3fb5cef7 style fixes John W. Eaton <jwe@octave.org> parents: 11516 diff changeset	71 F77_CHAR_ARG_LEN_DECL
141b3fb5cef7 style fixes John W. Eaton <jwe@octave.org> parents: 11516 diff changeset	72 F77_CHAR_ARG_LEN_DECL);
7476 e9f10b4c05cf fix workspace size calculation for xGELSD Jason Riedy parents: 7416 diff changeset	73
4552 6f3382e08a52 [project @ 2003-10-27 20:38:02 by jwe] jwe parents: 4513 diff changeset	74 F77_RET_T
6f3382e08a52 [project @ 2003-10-27 20:38:02 by jwe] jwe parents: 4513 diff changeset	75 F77_FUNC (dgebal, DGEBAL) (F77_CONST_CHAR_ARG_DECL,
11518 141b3fb5cef7 style fixes John W. Eaton <jwe@octave.org> parents: 11516 diff changeset	76 const octave_idx_type&, double*,
141b3fb5cef7 style fixes John W. Eaton <jwe@octave.org> parents: 11516 diff changeset	77 const octave_idx_type&, octave_idx_type&,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	78 octave_idx_type&, double*, octave_idx_type&
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	79 F77_CHAR_ARG_LEN_DECL);
4552 6f3382e08a52 [project @ 2003-10-27 20:38:02 by jwe] jwe parents: 4513 diff changeset	80
6f3382e08a52 [project @ 2003-10-27 20:38:02 by jwe] jwe parents: 4513 diff changeset	81 F77_RET_T
6f3382e08a52 [project @ 2003-10-27 20:38:02 by jwe] jwe parents: 4513 diff changeset	82 F77_FUNC (dgebak, DGEBAK) (F77_CONST_CHAR_ARG_DECL,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	83 F77_CONST_CHAR_ARG_DECL,
11518 141b3fb5cef7 style fixes John W. Eaton <jwe@octave.org> parents: 11516 diff changeset	84 const octave_idx_type&, const octave_idx_type&,
141b3fb5cef7 style fixes John W. Eaton <jwe@octave.org> parents: 11516 diff changeset	85 const octave_idx_type&, double*,
141b3fb5cef7 style fixes John W. Eaton <jwe@octave.org> parents: 11516 diff changeset	86 const octave_idx_type&, double*,
141b3fb5cef7 style fixes John W. Eaton <jwe@octave.org> parents: 11516 diff changeset	87 const octave_idx_type&, octave_idx_type&
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	88 F77_CHAR_ARG_LEN_DECL
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	89 F77_CHAR_ARG_LEN_DECL);
4552 6f3382e08a52 [project @ 2003-10-27 20:38:02 by jwe] jwe parents: 4513 diff changeset	90
6f3382e08a52 [project @ 2003-10-27 20:38:02 by jwe] jwe parents: 4513 diff changeset	91
6f3382e08a52 [project @ 2003-10-27 20:38:02 by jwe] jwe parents: 4513 diff changeset	92 F77_RET_T
6f3382e08a52 [project @ 2003-10-27 20:38:02 by jwe] jwe parents: 4513 diff changeset	93 F77_FUNC (dgemm, DGEMM) (F77_CONST_CHAR_ARG_DECL,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	94 F77_CONST_CHAR_ARG_DECL,
11518 141b3fb5cef7 style fixes John W. Eaton <jwe@octave.org> parents: 11516 diff changeset	95 const octave_idx_type&, const octave_idx_type&,
141b3fb5cef7 style fixes John W. Eaton <jwe@octave.org> parents: 11516 diff changeset	96 const octave_idx_type&, const double&,
141b3fb5cef7 style fixes John W. Eaton <jwe@octave.org> parents: 11516 diff changeset	97 const double*, const octave_idx_type&,
141b3fb5cef7 style fixes John W. Eaton <jwe@octave.org> parents: 11516 diff changeset	98 const double*, const octave_idx_type&,
141b3fb5cef7 style fixes John W. Eaton <jwe@octave.org> parents: 11516 diff changeset	99 const double&, double*, const octave_idx_type&
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	100 F77_CHAR_ARG_LEN_DECL
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	101 F77_CHAR_ARG_LEN_DECL);
4552 6f3382e08a52 [project @ 2003-10-27 20:38:02 by jwe] jwe parents: 4513 diff changeset	102
6f3382e08a52 [project @ 2003-10-27 20:38:02 by jwe] jwe parents: 4513 diff changeset	103 F77_RET_T
5983 ae09df27153f [project @ 2006-09-12 02:15:47 by jwe] jwe parents: 5958 diff changeset	104 F77_FUNC (dgemv, DGEMV) (F77_CONST_CHAR_ARG_DECL,
11518 141b3fb5cef7 style fixes John W. Eaton <jwe@octave.org> parents: 11516 diff changeset	105 const octave_idx_type&, const octave_idx_type&,
141b3fb5cef7 style fixes John W. Eaton <jwe@octave.org> parents: 11516 diff changeset	106 const double&, const double*,
141b3fb5cef7 style fixes John W. Eaton <jwe@octave.org> parents: 11516 diff changeset	107 const octave_idx_type&, const double*,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	108 const octave_idx_type&, const double&, double*,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	109 const octave_idx_type&
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	110 F77_CHAR_ARG_LEN_DECL);
5983 ae09df27153f [project @ 2006-09-12 02:15:47 by jwe] jwe parents: 5958 diff changeset	111
ae09df27153f [project @ 2006-09-12 02:15:47 by jwe] jwe parents: 5958 diff changeset	112 F77_RET_T
11518 141b3fb5cef7 style fixes John W. Eaton <jwe@octave.org> parents: 11516 diff changeset	113 F77_FUNC (xddot, XDDOT) (const octave_idx_type&, const double*,
141b3fb5cef7 style fixes John W. Eaton <jwe@octave.org> parents: 11516 diff changeset	114 const octave_idx_type&, const double*,
141b3fb5cef7 style fixes John W. Eaton <jwe@octave.org> parents: 11516 diff changeset	115 const octave_idx_type&, double&);
5983 ae09df27153f [project @ 2006-09-12 02:15:47 by jwe] jwe parents: 5958 diff changeset	116
ae09df27153f [project @ 2006-09-12 02:15:47 by jwe] jwe parents: 5958 diff changeset	117 F77_RET_T
7801 776791438957 map symmetric cases to xHERK, xSYRK Jaroslav Hajek <highegg@gmail.com> parents: 7800 diff changeset	118 F77_FUNC (dsyrk, DSYRK) (F77_CONST_CHAR_ARG_DECL,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	119 F77_CONST_CHAR_ARG_DECL,
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11574 diff changeset	120 const octave_idx_type&, const octave_idx_type&,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	121 const double&, const double*, const octave_idx_type&,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	122 const double&, double*, const octave_idx_type&
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	123 F77_CHAR_ARG_LEN_DECL
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	124 F77_CHAR_ARG_LEN_DECL);
7801 776791438957 map symmetric cases to xHERK, xSYRK Jaroslav Hajek <highegg@gmail.com> parents: 7800 diff changeset	125
776791438957 map symmetric cases to xHERK, xSYRK Jaroslav Hajek <highegg@gmail.com> parents: 7800 diff changeset	126 F77_RET_T
11518 141b3fb5cef7 style fixes John W. Eaton <jwe@octave.org> parents: 11516 diff changeset	127 F77_FUNC (dgetrf, DGETRF) (const octave_idx_type&, const octave_idx_type&,
141b3fb5cef7 style fixes John W. Eaton <jwe@octave.org> parents: 11516 diff changeset	128 double*, const octave_idx_type&,
141b3fb5cef7 style fixes John W. Eaton <jwe@octave.org> parents: 11516 diff changeset	129 octave_idx_type*, octave_idx_type&);
4329 d53c33d93440 [project @ 2003-02-18 20:00:48 by jwe] jwe parents: 4316 diff changeset	130
4552 6f3382e08a52 [project @ 2003-10-27 20:38:02 by jwe] jwe parents: 4513 diff changeset	131 F77_RET_T
11518 141b3fb5cef7 style fixes John W. Eaton <jwe@octave.org> parents: 11516 diff changeset	132 F77_FUNC (dgetrs, DGETRS) (F77_CONST_CHAR_ARG_DECL,
141b3fb5cef7 style fixes John W. Eaton <jwe@octave.org> parents: 11516 diff changeset	133 const octave_idx_type&, const octave_idx_type&,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	134 const double*, const octave_idx_type&,
11518 141b3fb5cef7 style fixes John W. Eaton <jwe@octave.org> parents: 11516 diff changeset	135 const octave_idx_type, double,
141b3fb5cef7 style fixes John W. Eaton <jwe@octave.org> parents: 11516 diff changeset	136 const octave_idx_type&, octave_idx_type&
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	137 F77_CHAR_ARG_LEN_DECL);
4552 6f3382e08a52 [project @ 2003-10-27 20:38:02 by jwe] jwe parents: 4513 diff changeset	138
6f3382e08a52 [project @ 2003-10-27 20:38:02 by jwe] jwe parents: 4513 diff changeset	139 F77_RET_T
11518 141b3fb5cef7 style fixes John W. Eaton <jwe@octave.org> parents: 11516 diff changeset	140 F77_FUNC (dgetri, DGETRI) (const octave_idx_type&, double*,
141b3fb5cef7 style fixes John W. Eaton <jwe@octave.org> parents: 11516 diff changeset	141 const octave_idx_type&, const octave_idx_type*,
141b3fb5cef7 style fixes John W. Eaton <jwe@octave.org> parents: 11516 diff changeset	142 double*, const octave_idx_type&,
141b3fb5cef7 style fixes John W. Eaton <jwe@octave.org> parents: 11516 diff changeset	143 octave_idx_type&);
4552 6f3382e08a52 [project @ 2003-10-27 20:38:02 by jwe] jwe parents: 4513 diff changeset	144
6f3382e08a52 [project @ 2003-10-27 20:38:02 by jwe] jwe parents: 4513 diff changeset	145 F77_RET_T
11518 141b3fb5cef7 style fixes John W. Eaton <jwe@octave.org> parents: 11516 diff changeset	146 F77_FUNC (dgecon, DGECON) (F77_CONST_CHAR_ARG_DECL,
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11574 diff changeset	147 const octave_idx_type&, double*,
12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11574 diff changeset	148 const octave_idx_type&, const double&, double&,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	149 double, octave_idx_type, octave_idx_type&
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	150 F77_CHAR_ARG_LEN_DECL);
4552 6f3382e08a52 [project @ 2003-10-27 20:38:02 by jwe] jwe parents: 4513 diff changeset	151
6f3382e08a52 [project @ 2003-10-27 20:38:02 by jwe] jwe parents: 4513 diff changeset	152 F77_RET_T
11518 141b3fb5cef7 style fixes John W. Eaton <jwe@octave.org> parents: 11516 diff changeset	153 F77_FUNC (dgelsy, DGELSY) (const octave_idx_type&, const octave_idx_type&,
141b3fb5cef7 style fixes John W. Eaton <jwe@octave.org> parents: 11516 diff changeset	154 const octave_idx_type&, double*,
141b3fb5cef7 style fixes John W. Eaton <jwe@octave.org> parents: 11516 diff changeset	155 const octave_idx_type&, double*,
141b3fb5cef7 style fixes John W. Eaton <jwe@octave.org> parents: 11516 diff changeset	156 const octave_idx_type&, octave_idx_type*,
141b3fb5cef7 style fixes John W. Eaton <jwe@octave.org> parents: 11516 diff changeset	157 double&, octave_idx_type&, double*,
141b3fb5cef7 style fixes John W. Eaton <jwe@octave.org> parents: 11516 diff changeset	158 const octave_idx_type&, octave_idx_type&);
7072 b48d486f641d [project @ 2007-10-26 15:52:57 by jwe] jwe parents: 7071 diff changeset	159
b48d486f641d [project @ 2007-10-26 15:52:57 by jwe] jwe parents: 7071 diff changeset	160 F77_RET_T
11518 141b3fb5cef7 style fixes John W. Eaton <jwe@octave.org> parents: 11516 diff changeset	161 F77_FUNC (dgelsd, DGELSD) (const octave_idx_type&, const octave_idx_type&,
141b3fb5cef7 style fixes John W. Eaton <jwe@octave.org> parents: 11516 diff changeset	162 const octave_idx_type&, double*,
141b3fb5cef7 style fixes John W. Eaton <jwe@octave.org> parents: 11516 diff changeset	163 const octave_idx_type&, double*,
141b3fb5cef7 style fixes John W. Eaton <jwe@octave.org> parents: 11516 diff changeset	164 const octave_idx_type&, double*, double&,
141b3fb5cef7 style fixes John W. Eaton <jwe@octave.org> parents: 11516 diff changeset	165 octave_idx_type&, double*,
141b3fb5cef7 style fixes John W. Eaton <jwe@octave.org> parents: 11516 diff changeset	166 const octave_idx_type&, octave_idx_type*,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	167 octave_idx_type&);
458 38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	168
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5775 diff changeset	169 F77_RET_T
11518 141b3fb5cef7 style fixes John W. Eaton <jwe@octave.org> parents: 11516 diff changeset	170 F77_FUNC (dpotrf, DPOTRF) (F77_CONST_CHAR_ARG_DECL,
141b3fb5cef7 style fixes John W. Eaton <jwe@octave.org> parents: 11516 diff changeset	171 const octave_idx_type&, double *,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	172 const octave_idx_type&, octave_idx_type&
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	173 F77_CHAR_ARG_LEN_DECL);
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5775 diff changeset	174
6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5775 diff changeset	175 F77_RET_T
11518 141b3fb5cef7 style fixes John W. Eaton <jwe@octave.org> parents: 11516 diff changeset	176 F77_FUNC (dpocon, DPOCON) (F77_CONST_CHAR_ARG_DECL,
141b3fb5cef7 style fixes John W. Eaton <jwe@octave.org> parents: 11516 diff changeset	177 const octave_idx_type&, double*,
141b3fb5cef7 style fixes John W. Eaton <jwe@octave.org> parents: 11516 diff changeset	178 const octave_idx_type&, const double&,
141b3fb5cef7 style fixes John W. Eaton <jwe@octave.org> parents: 11516 diff changeset	179 double&, double, octave_idx_type,
141b3fb5cef7 style fixes John W. Eaton <jwe@octave.org> parents: 11516 diff changeset	180 octave_idx_type&
141b3fb5cef7 style fixes John W. Eaton <jwe@octave.org> parents: 11516 diff changeset	181 F77_CHAR_ARG_LEN_DECL);
141b3fb5cef7 style fixes John W. Eaton <jwe@octave.org> parents: 11516 diff changeset	182 F77_RET_T
141b3fb5cef7 style fixes John W. Eaton <jwe@octave.org> parents: 11516 diff changeset	183 F77_FUNC (dpotrs, DPOTRS) (F77_CONST_CHAR_ARG_DECL,
141b3fb5cef7 style fixes John W. Eaton <jwe@octave.org> parents: 11516 diff changeset	184 const octave_idx_type&, const octave_idx_type&,
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11574 diff changeset	185 const double, const octave_idx_type&, double,
11518 141b3fb5cef7 style fixes John W. Eaton <jwe@octave.org> parents: 11516 diff changeset	186 const octave_idx_type&, octave_idx_type&
141b3fb5cef7 style fixes John W. Eaton <jwe@octave.org> parents: 11516 diff changeset	187 F77_CHAR_ARG_LEN_DECL);
141b3fb5cef7 style fixes John W. Eaton <jwe@octave.org> parents: 11516 diff changeset	188
141b3fb5cef7 style fixes John W. Eaton <jwe@octave.org> parents: 11516 diff changeset	189 F77_RET_T
141b3fb5cef7 style fixes John W. Eaton <jwe@octave.org> parents: 11516 diff changeset	190 F77_FUNC (dtrtri, DTRTRI) (F77_CONST_CHAR_ARG_DECL,
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11574 diff changeset	191 F77_CONST_CHAR_ARG_DECL,
12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11574 diff changeset	192 const octave_idx_type&, const double*,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	193 const octave_idx_type&, octave_idx_type&
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	194 F77_CHAR_ARG_LEN_DECL
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	195 F77_CHAR_ARG_LEN_DECL);
6207 3c92b8d892dd [project @ 2006-12-06 20:19:14 by dbateman] dbateman parents: 6162 diff changeset	196 F77_RET_T
11518 141b3fb5cef7 style fixes John W. Eaton <jwe@octave.org> parents: 11516 diff changeset	197 F77_FUNC (dtrcon, DTRCON) (F77_CONST_CHAR_ARG_DECL,
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11574 diff changeset	198 F77_CONST_CHAR_ARG_DECL,
11518 141b3fb5cef7 style fixes John W. Eaton <jwe@octave.org> parents: 11516 diff changeset	199 F77_CONST_CHAR_ARG_DECL,
141b3fb5cef7 style fixes John W. Eaton <jwe@octave.org> parents: 11516 diff changeset	200 const octave_idx_type&, const double*,
141b3fb5cef7 style fixes John W. Eaton <jwe@octave.org> parents: 11516 diff changeset	201 const octave_idx_type&, double&,
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11574 diff changeset	202 double, octave_idx_type, octave_idx_type&
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	203 F77_CHAR_ARG_LEN_DECL
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	204 F77_CHAR_ARG_LEN_DECL
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	205 F77_CHAR_ARG_LEN_DECL);
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5775 diff changeset	206 F77_RET_T
11518 141b3fb5cef7 style fixes John W. Eaton <jwe@octave.org> parents: 11516 diff changeset	207 F77_FUNC (dtrtrs, DTRTRS) (F77_CONST_CHAR_ARG_DECL,
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11574 diff changeset	208 F77_CONST_CHAR_ARG_DECL,
11518 141b3fb5cef7 style fixes John W. Eaton <jwe@octave.org> parents: 11516 diff changeset	209 F77_CONST_CHAR_ARG_DECL,
141b3fb5cef7 style fixes John W. Eaton <jwe@octave.org> parents: 11516 diff changeset	210 const octave_idx_type&, const octave_idx_type&,
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11574 diff changeset	211 const double, const octave_idx_type&, double,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	212 const octave_idx_type&, octave_idx_type&
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	213 F77_CHAR_ARG_LEN_DECL
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	214 F77_CHAR_ARG_LEN_DECL
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	215 F77_CHAR_ARG_LEN_DECL);
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5775 diff changeset	216
4552 6f3382e08a52 [project @ 2003-10-27 20:38:02 by jwe] jwe parents: 4513 diff changeset	217 F77_RET_T
6f3382e08a52 [project @ 2003-10-27 20:38:02 by jwe] jwe parents: 4513 diff changeset	218 F77_FUNC (dlartg, DLARTG) (const double&, const double&, double&,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	219 double&, double&);
4552 6f3382e08a52 [project @ 2003-10-27 20:38:02 by jwe] jwe parents: 4513 diff changeset	220
6f3382e08a52 [project @ 2003-10-27 20:38:02 by jwe] jwe parents: 4513 diff changeset	221 F77_RET_T
6f3382e08a52 [project @ 2003-10-27 20:38:02 by jwe] jwe parents: 4513 diff changeset	222 F77_FUNC (dtrsyl, DTRSYL) (F77_CONST_CHAR_ARG_DECL,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	223 F77_CONST_CHAR_ARG_DECL,
11518 141b3fb5cef7 style fixes John W. Eaton <jwe@octave.org> parents: 11516 diff changeset	224 const octave_idx_type&, const octave_idx_type&,
141b3fb5cef7 style fixes John W. Eaton <jwe@octave.org> parents: 11516 diff changeset	225 const octave_idx_type&, const double*,
141b3fb5cef7 style fixes John W. Eaton <jwe@octave.org> parents: 11516 diff changeset	226 const octave_idx_type&, const double*,
141b3fb5cef7 style fixes John W. Eaton <jwe@octave.org> parents: 11516 diff changeset	227 const octave_idx_type&, const double*,
141b3fb5cef7 style fixes John W. Eaton <jwe@octave.org> parents: 11516 diff changeset	228 const octave_idx_type&, double&, octave_idx_type&
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	229 F77_CHAR_ARG_LEN_DECL
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	230 F77_CHAR_ARG_LEN_DECL);
4552 6f3382e08a52 [project @ 2003-10-27 20:38:02 by jwe] jwe parents: 4513 diff changeset	231
6f3382e08a52 [project @ 2003-10-27 20:38:02 by jwe] jwe parents: 4513 diff changeset	232 F77_RET_T
11518 141b3fb5cef7 style fixes John W. Eaton <jwe@octave.org> parents: 11516 diff changeset	233 F77_FUNC (xdlange, XDLANGE) (F77_CONST_CHAR_ARG_DECL,
141b3fb5cef7 style fixes John W. Eaton <jwe@octave.org> parents: 11516 diff changeset	234 const octave_idx_type&, const octave_idx_type&,
141b3fb5cef7 style fixes John W. Eaton <jwe@octave.org> parents: 11516 diff changeset	235 const double*, const octave_idx_type&,
141b3fb5cef7 style fixes John W. Eaton <jwe@octave.org> parents: 11516 diff changeset	236 double*, double&
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11574 diff changeset	237 F77_CHAR_ARG_LEN_DECL);
458 38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	238 }
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	239
1360 7eb93d12654c [project @ 1995-09-05 21:51:54 by jwe] jwe parents: 1321 diff changeset	240 // Matrix class.
458 38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	241
2349 b369227ce3d2 [project @ 1996-07-27 07:59:20 by jwe] jwe parents: 2317 diff changeset	242 Matrix::Matrix (const RowVector& rv)
10350 12884915a8e4 merge MArray classes & improve Array interface Jaroslav Hajek <highegg@gmail.com> parents: 10314 diff changeset	243 : MArray<double> (rv)
2349 b369227ce3d2 [project @ 1996-07-27 07:59:20 by jwe] jwe parents: 2317 diff changeset	244 {
b369227ce3d2 [project @ 1996-07-27 07:59:20 by jwe] jwe parents: 2317 diff changeset	245 }
b369227ce3d2 [project @ 1996-07-27 07:59:20 by jwe] jwe parents: 2317 diff changeset	246
b369227ce3d2 [project @ 1996-07-27 07:59:20 by jwe] jwe parents: 2317 diff changeset	247 Matrix::Matrix (const ColumnVector& cv)
10350 12884915a8e4 merge MArray classes & improve Array interface Jaroslav Hajek <highegg@gmail.com> parents: 10314 diff changeset	248 : MArray<double> (cv)
2349 b369227ce3d2 [project @ 1996-07-27 07:59:20 by jwe] jwe parents: 2317 diff changeset	249 {
b369227ce3d2 [project @ 1996-07-27 07:59:20 by jwe] jwe parents: 2317 diff changeset	250 }
b369227ce3d2 [project @ 1996-07-27 07:59:20 by jwe] jwe parents: 2317 diff changeset	251
458 38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	252 Matrix::Matrix (const DiagMatrix& a)
11570 57632dea2446 attempt better backward compatibility for Array constructors John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	253 : MArray<double> (a.dims (), 0.0)
458 38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	254 {
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	255 for (octave_idx_type i = 0; i < a.length (); i++)
458 38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	256 elem (i, i) = a.elem (i, i);
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	257 }
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	258
8367 445d27d79f4e support permutation matrix objects Jaroslav Hajek <highegg@gmail.com> parents: 8337 diff changeset	259 Matrix::Matrix (const PermMatrix& a)
11570 57632dea2446 attempt better backward compatibility for Array constructors John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	260 : MArray<double> (a.dims (), 0.0)
8367 445d27d79f4e support permutation matrix objects Jaroslav Hajek <highegg@gmail.com> parents: 8337 diff changeset	261 {
19039 aa9ca67f09fb make all permutation matrices column permutations (bug #42418) David Spies <dnspies@gmail.com> parents: 18780 diff changeset	262 const Array<octave_idx_type> ia (a.col_perm_vec ());
8367 445d27d79f4e support permutation matrix objects Jaroslav Hajek <highegg@gmail.com> parents: 8337 diff changeset	263 octave_idx_type len = a.rows ();
19039 aa9ca67f09fb make all permutation matrices column permutations (bug #42418) David Spies <dnspies@gmail.com> parents: 18780 diff changeset	264 for (octave_idx_type i = 0; i < len; i++)
aa9ca67f09fb make all permutation matrices column permutations (bug #42418) David Spies <dnspies@gmail.com> parents: 18780 diff changeset	265 elem (ia(i), i) = 1.0;
8367 445d27d79f4e support permutation matrix objects Jaroslav Hajek <highegg@gmail.com> parents: 8337 diff changeset	266 }
445d27d79f4e support permutation matrix objects Jaroslav Hajek <highegg@gmail.com> parents: 8337 diff changeset	267
17769 49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	268 // FIXME: could we use a templated mixed-type copy function here?
1574 dd7d27461567 [project @ 1995-10-19 04:34:20 by jwe] jwe parents: 1561 diff changeset	269
2828 92826d6e8bd9 [project @ 1997-03-25 23:41:41 by jwe] jwe parents: 2800 diff changeset	270 Matrix::Matrix (const boolMatrix& a)
10350 12884915a8e4 merge MArray classes & improve Array interface Jaroslav Hajek <highegg@gmail.com> parents: 10314 diff changeset	271 : MArray<double> (a)
2828 92826d6e8bd9 [project @ 1997-03-25 23:41:41 by jwe] jwe parents: 2800 diff changeset	272 {
92826d6e8bd9 [project @ 1997-03-25 23:41:41 by jwe] jwe parents: 2800 diff changeset	273 }
92826d6e8bd9 [project @ 1997-03-25 23:41:41 by jwe] jwe parents: 2800 diff changeset	274
1574 dd7d27461567 [project @ 1995-10-19 04:34:20 by jwe] jwe parents: 1561 diff changeset	275 Matrix::Matrix (const charMatrix& a)
11570 57632dea2446 attempt better backward compatibility for Array constructors John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	276 : MArray<double> (a.dims ())
1574 dd7d27461567 [project @ 1995-10-19 04:34:20 by jwe] jwe parents: 1561 diff changeset	277 {
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	278 for (octave_idx_type i = 0; i < a.rows (); i++)
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	279 for (octave_idx_type j = 0; j < a.cols (); j++)
8956 d91fa4b20bbb ensure nonnegative char -> real conversion Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	280 elem (i, j) = static_cast<unsigned char> (a.elem (i, j));
1574 dd7d27461567 [project @ 1995-10-19 04:34:20 by jwe] jwe parents: 1561 diff changeset	281 }
dd7d27461567 [project @ 1995-10-19 04:34:20 by jwe] jwe parents: 1561 diff changeset	282
2385 170053c0f75e [project @ 1996-10-12 18:23:01 by jwe] jwe parents: 2354 diff changeset	283 bool
458 38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	284 Matrix::operator == (const Matrix& a) const
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	285 {
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	286 if (rows () != a.rows () \|\| cols () != a.cols ())
2385 170053c0f75e [project @ 1996-10-12 18:23:01 by jwe] jwe parents: 2354 diff changeset	287 return false;
458 38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	288
9550 3d6a9aea2aea refactor binary & bool ops in liboctave Jaroslav Hajek <highegg@gmail.com> parents: 9528 diff changeset	289 return mx_inline_equal (length (), data (), a.data ());
458 38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	290 }
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	291
2385 170053c0f75e [project @ 1996-10-12 18:23:01 by jwe] jwe parents: 2354 diff changeset	292 bool
458 38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	293 Matrix::operator != (const Matrix& a) const
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	294 {
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	295 return !(*this == a);
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	296 }
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	297
3354 87721841efd7 [project @ 1999-11-17 19:06:11 by jwe] jwe parents: 3331 diff changeset	298 bool
87721841efd7 [project @ 1999-11-17 19:06:11 by jwe] jwe parents: 3331 diff changeset	299 Matrix::is_symmetric (void) const
87721841efd7 [project @ 1999-11-17 19:06:11 by jwe] jwe parents: 3331 diff changeset	300 {
87721841efd7 [project @ 1999-11-17 19:06:11 by jwe] jwe parents: 3331 diff changeset	301 if (is_square () && rows () > 0)
87721841efd7 [project @ 1999-11-17 19:06:11 by jwe] jwe parents: 3331 diff changeset	302 {
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	303 for (octave_idx_type i = 0; i < rows (); i++)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	304 for (octave_idx_type j = i+1; j < cols (); j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	305 if (elem (i, j) != elem (j, i))
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	306 return false;
3354 87721841efd7 [project @ 1999-11-17 19:06:11 by jwe] jwe parents: 3331 diff changeset	307
87721841efd7 [project @ 1999-11-17 19:06:11 by jwe] jwe parents: 3331 diff changeset	308 return true;
87721841efd7 [project @ 1999-11-17 19:06:11 by jwe] jwe parents: 3331 diff changeset	309 }
87721841efd7 [project @ 1999-11-17 19:06:11 by jwe] jwe parents: 3331 diff changeset	310
87721841efd7 [project @ 1999-11-17 19:06:11 by jwe] jwe parents: 3331 diff changeset	311 return false;
87721841efd7 [project @ 1999-11-17 19:06:11 by jwe] jwe parents: 3331 diff changeset	312 }
87721841efd7 [project @ 1999-11-17 19:06:11 by jwe] jwe parents: 3331 diff changeset	313
458 38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	314 Matrix&
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	315 Matrix::insert (const Matrix& a, octave_idx_type r, octave_idx_type c)
458 38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	316 {
10350 12884915a8e4 merge MArray classes & improve Array interface Jaroslav Hajek <highegg@gmail.com> parents: 10314 diff changeset	317 Array<double>::insert (a, r, c);
458 38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	318 return *this;
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	319 }
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	320
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	321 Matrix&
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	322 Matrix::insert (const RowVector& a, octave_idx_type r, octave_idx_type c)
458 38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	323 {
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	324 octave_idx_type a_len = a.length ();
4316 236c10efcde2 [project @ 2003-02-10 21:57:15 by jwe] jwe parents: 4309 diff changeset	325
1698 0892abda7553 [project @ 1996-01-07 02:28:21 by jwe] jwe parents: 1697 diff changeset	326 if (r < 0 \|\| r >= rows () \|\| c < 0 \|\| c + a_len > cols ())
458 38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	327 {
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	328 (*current_liboctave_error_handler) ("range error for insert");
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	329 return *this;
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	330 }
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	331
4316 236c10efcde2 [project @ 2003-02-10 21:57:15 by jwe] jwe parents: 4309 diff changeset	332 if (a_len > 0)
236c10efcde2 [project @ 2003-02-10 21:57:15 by jwe] jwe parents: 4309 diff changeset	333 {
236c10efcde2 [project @ 2003-02-10 21:57:15 by jwe] jwe parents: 4309 diff changeset	334 make_unique ();
236c10efcde2 [project @ 2003-02-10 21:57:15 by jwe] jwe parents: 4309 diff changeset	335
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	336 for (octave_idx_type i = 0; i < a_len; i++)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	337 xelem (r, c+i) = a.elem (i);
4316 236c10efcde2 [project @ 2003-02-10 21:57:15 by jwe] jwe parents: 4309 diff changeset	338 }
458 38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	339
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	340 return *this;
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	341 }
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	342
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	343 Matrix&
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	344 Matrix::insert (const ColumnVector& a, octave_idx_type r, octave_idx_type c)
458 38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	345 {
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	346 octave_idx_type a_len = a.length ();
4316 236c10efcde2 [project @ 2003-02-10 21:57:15 by jwe] jwe parents: 4309 diff changeset	347
1698 0892abda7553 [project @ 1996-01-07 02:28:21 by jwe] jwe parents: 1697 diff changeset	348 if (r < 0 \|\| r + a_len > rows () \|\| c < 0 \|\| c >= cols ())
458 38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	349 {
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	350 (*current_liboctave_error_handler) ("range error for insert");
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	351 return *this;
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	352 }
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	353
4316 236c10efcde2 [project @ 2003-02-10 21:57:15 by jwe] jwe parents: 4309 diff changeset	354 if (a_len > 0)
236c10efcde2 [project @ 2003-02-10 21:57:15 by jwe] jwe parents: 4309 diff changeset	355 {
236c10efcde2 [project @ 2003-02-10 21:57:15 by jwe] jwe parents: 4309 diff changeset	356 make_unique ();
236c10efcde2 [project @ 2003-02-10 21:57:15 by jwe] jwe parents: 4309 diff changeset	357
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	358 for (octave_idx_type i = 0; i < a_len; i++)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	359 xelem (r+i, c) = a.elem (i);
4316 236c10efcde2 [project @ 2003-02-10 21:57:15 by jwe] jwe parents: 4309 diff changeset	360 }
458 38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	361
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	362 return *this;
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	363 }
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	364
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	365 Matrix&
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	366 Matrix::insert (const DiagMatrix& a, octave_idx_type r, octave_idx_type c)
458 38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	367 {
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	368 octave_idx_type a_nr = a.rows ();
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	369 octave_idx_type a_nc = a.cols ();
1697 597c3ca9f6e8 [project @ 1996-01-07 02:13:24 by jwe] jwe parents: 1657 diff changeset	370
1698 0892abda7553 [project @ 1996-01-07 02:28:21 by jwe] jwe parents: 1697 diff changeset	371 if (r < 0 \|\| r + a_nr > rows () \|\| c < 0 \|\| c + a_nc > cols ())
458 38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	372 {
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	373 (*current_liboctave_error_handler) ("range error for insert");
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	374 return *this;
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	375 }
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	376
1697 597c3ca9f6e8 [project @ 1996-01-07 02:13:24 by jwe] jwe parents: 1657 diff changeset	377 fill (0.0, r, c, r + a_nr - 1, c + a_nc - 1);
597c3ca9f6e8 [project @ 1996-01-07 02:13:24 by jwe] jwe parents: 1657 diff changeset	378
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	379 octave_idx_type a_len = a.length ();
4316 236c10efcde2 [project @ 2003-02-10 21:57:15 by jwe] jwe parents: 4309 diff changeset	380
236c10efcde2 [project @ 2003-02-10 21:57:15 by jwe] jwe parents: 4309 diff changeset	381 if (a_len > 0)
236c10efcde2 [project @ 2003-02-10 21:57:15 by jwe] jwe parents: 4309 diff changeset	382 {
236c10efcde2 [project @ 2003-02-10 21:57:15 by jwe] jwe parents: 4309 diff changeset	383 make_unique ();
236c10efcde2 [project @ 2003-02-10 21:57:15 by jwe] jwe parents: 4309 diff changeset	384
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	385 for (octave_idx_type i = 0; i < a_len; i++)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	386 xelem (r+i, c+i) = a.elem (i, i);
4316 236c10efcde2 [project @ 2003-02-10 21:57:15 by jwe] jwe parents: 4309 diff changeset	387 }
458 38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	388
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	389 return *this;
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	390 }
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	391
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	392 Matrix&
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	393 Matrix::fill (double val)
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	394 {
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	395 octave_idx_type nr = rows ();
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	396 octave_idx_type nc = cols ();
4316 236c10efcde2 [project @ 2003-02-10 21:57:15 by jwe] jwe parents: 4309 diff changeset	397
458 38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	398 if (nr > 0 && nc > 0)
4316 236c10efcde2 [project @ 2003-02-10 21:57:15 by jwe] jwe parents: 4309 diff changeset	399 {
236c10efcde2 [project @ 2003-02-10 21:57:15 by jwe] jwe parents: 4309 diff changeset	400 make_unique ();
236c10efcde2 [project @ 2003-02-10 21:57:15 by jwe] jwe parents: 4309 diff changeset	401
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	402 for (octave_idx_type j = 0; j < nc; j++)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	403 for (octave_idx_type i = 0; i < nr; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	404 xelem (i, j) = val;
4316 236c10efcde2 [project @ 2003-02-10 21:57:15 by jwe] jwe parents: 4309 diff changeset	405 }
458 38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	406
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	407 return *this;
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	408 }
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	409
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	410 Matrix&
17769 49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	411 Matrix::fill (double val, octave_idx_type r1, octave_idx_type c1,
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	412 octave_idx_type r2, octave_idx_type c2)
458 38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	413 {
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	414 octave_idx_type nr = rows ();
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	415 octave_idx_type nc = cols ();
4316 236c10efcde2 [project @ 2003-02-10 21:57:15 by jwe] jwe parents: 4309 diff changeset	416
458 38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	417 if (r1 < 0 \|\| r2 < 0 \|\| c1 < 0 \|\| c2 < 0
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	418 \|\| r1 >= nr \|\| r2 >= nr \|\| c1 >= nc \|\| c2 >= nc)
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	419 {
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	420 (*current_liboctave_error_handler) ("range error for fill");
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	421 return *this;
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	422 }
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	423
17663 7975d75f933c Use std::swap in liboctave instead of temporary variable. Rik <rik@octave.org> parents: 16300 diff changeset	424 if (r1 > r2) { std::swap (r1, r2); }
7975d75f933c Use std::swap in liboctave instead of temporary variable. Rik <rik@octave.org> parents: 16300 diff changeset	425 if (c1 > c2) { std::swap (c1, c2); }
458 38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	426
4316 236c10efcde2 [project @ 2003-02-10 21:57:15 by jwe] jwe parents: 4309 diff changeset	427 if (r2 >= r1 && c2 >= c1)
236c10efcde2 [project @ 2003-02-10 21:57:15 by jwe] jwe parents: 4309 diff changeset	428 {
236c10efcde2 [project @ 2003-02-10 21:57:15 by jwe] jwe parents: 4309 diff changeset	429 make_unique ();
236c10efcde2 [project @ 2003-02-10 21:57:15 by jwe] jwe parents: 4309 diff changeset	430
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	431 for (octave_idx_type j = c1; j <= c2; j++)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	432 for (octave_idx_type i = r1; i <= r2; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	433 xelem (i, j) = val;
4316 236c10efcde2 [project @ 2003-02-10 21:57:15 by jwe] jwe parents: 4309 diff changeset	434 }
458 38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	435
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	436 return *this;
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	437 }
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	438
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	439 Matrix
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	440 Matrix::append (const Matrix& a) const
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	441 {
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	442 octave_idx_type nr = rows ();
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	443 octave_idx_type nc = cols ();
458 38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	444 if (nr != a.rows ())
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	445 {
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	446 (*current_liboctave_error_handler) ("row dimension mismatch for append");
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	447 return Matrix ();
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	448 }
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	449
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	450 octave_idx_type nc_insert = nc;
458 38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	451 Matrix retval (nr, nc + a.cols ());
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	452 retval.insert (*this, 0, 0);
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	453 retval.insert (a, 0, nc_insert);
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	454 return retval;
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	455 }
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	456
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	457 Matrix
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	458 Matrix::append (const RowVector& a) const
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	459 {
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	460 octave_idx_type nr = rows ();
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	461 octave_idx_type nc = cols ();
458 38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	462 if (nr != 1)
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	463 {
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	464 (*current_liboctave_error_handler) ("row dimension mismatch for append");
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	465 return Matrix ();
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	466 }
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	467
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	468 octave_idx_type nc_insert = nc;
458 38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	469 Matrix retval (nr, nc + a.length ());
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	470 retval.insert (*this, 0, 0);
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	471 retval.insert (a, 0, nc_insert);
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	472 return retval;
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	473 }
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	474
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	475 Matrix
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	476 Matrix::append (const ColumnVector& a) const
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	477 {
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	478 octave_idx_type nr = rows ();
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	479 octave_idx_type nc = cols ();
458 38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	480 if (nr != a.length ())
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	481 {
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	482 (*current_liboctave_error_handler) ("row dimension mismatch for append");
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	483 return Matrix ();
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	484 }
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	485
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	486 octave_idx_type nc_insert = nc;
458 38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	487 Matrix retval (nr, nc + 1);
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	488 retval.insert (*this, 0, 0);
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	489 retval.insert (a, 0, nc_insert);
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	490 return retval;
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	491 }
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	492
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	493 Matrix
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	494 Matrix::append (const DiagMatrix& a) const
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	495 {
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	496 octave_idx_type nr = rows ();
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	497 octave_idx_type nc = cols ();
458 38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	498 if (nr != a.rows ())
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	499 {
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	500 (*current_liboctave_error_handler) ("row dimension mismatch for append");
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	501 return *this;
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	502 }
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	503
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	504 octave_idx_type nc_insert = nc;
458 38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	505 Matrix retval (nr, nc + a.cols ());
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	506 retval.insert (*this, 0, 0);
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	507 retval.insert (a, 0, nc_insert);
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	508 return retval;
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	509 }
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	510
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	511 Matrix
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	512 Matrix::stack (const Matrix& a) const
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	513 {
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	514 octave_idx_type nr = rows ();
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	515 octave_idx_type nc = cols ();
458 38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	516 if (nc != a.cols ())
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	517 {
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	518 (*current_liboctave_error_handler)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	519 ("column dimension mismatch for stack");
458 38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	520 return Matrix ();
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	521 }
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	522
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	523 octave_idx_type nr_insert = nr;
458 38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	524 Matrix retval (nr + a.rows (), nc);
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	525 retval.insert (*this, 0, 0);
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	526 retval.insert (a, nr_insert, 0);
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	527 return retval;
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	528 }
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	529
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	530 Matrix
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	531 Matrix::stack (const RowVector& a) const
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	532 {
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	533 octave_idx_type nr = rows ();
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	534 octave_idx_type nc = cols ();
458 38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	535 if (nc != a.length ())
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	536 {
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	537 (*current_liboctave_error_handler)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	538 ("column dimension mismatch for stack");
458 38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	539 return Matrix ();
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	540 }
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	541
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	542 octave_idx_type nr_insert = nr;
458 38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	543 Matrix retval (nr + 1, nc);
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	544 retval.insert (*this, 0, 0);
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	545 retval.insert (a, nr_insert, 0);
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	546 return retval;
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	547 }
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	548
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	549 Matrix
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	550 Matrix::stack (const ColumnVector& a) const
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	551 {
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	552 octave_idx_type nr = rows ();
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	553 octave_idx_type nc = cols ();
458 38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	554 if (nc != 1)
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	555 {
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	556 (*current_liboctave_error_handler)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	557 ("column dimension mismatch for stack");
458 38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	558 return Matrix ();
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	559 }
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	560
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	561 octave_idx_type nr_insert = nr;
458 38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	562 Matrix retval (nr + a.length (), nc);
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	563 retval.insert (*this, 0, 0);
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	564 retval.insert (a, nr_insert, 0);
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	565 return retval;
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	566 }
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	567
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	568 Matrix
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	569 Matrix::stack (const DiagMatrix& a) const
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	570 {
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	571 octave_idx_type nr = rows ();
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	572 octave_idx_type nc = cols ();
458 38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	573 if (nc != a.cols ())
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	574 {
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	575 (*current_liboctave_error_handler)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	576 ("column dimension mismatch for stack");
458 38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	577 return Matrix ();
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	578 }
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	579
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	580 octave_idx_type nr_insert = nr;
458 38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	581 Matrix retval (nr + a.rows (), nc);
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	582 retval.insert (*this, 0, 0);
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	583 retval.insert (a, nr_insert, 0);
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	584 return retval;
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	585 }
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	586
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	587 Matrix
1205 8302fab9fe24 [project @ 1995-04-04 02:05:01 by jwe] jwe parents: 1195 diff changeset	588 real (const ComplexMatrix& a)
8302fab9fe24 [project @ 1995-04-04 02:05:01 by jwe] jwe parents: 1195 diff changeset	589 {
10363 a0728e81ed25 improve diag matrix interface & implementation Jaroslav Hajek <highegg@gmail.com> parents: 10362 diff changeset	590 return do_mx_unary_op<double, Complex> (a, mx_inline_real);
1205 8302fab9fe24 [project @ 1995-04-04 02:05:01 by jwe] jwe parents: 1195 diff changeset	591 }
8302fab9fe24 [project @ 1995-04-04 02:05:01 by jwe] jwe parents: 1195 diff changeset	592
8302fab9fe24 [project @ 1995-04-04 02:05:01 by jwe] jwe parents: 1195 diff changeset	593 Matrix
8302fab9fe24 [project @ 1995-04-04 02:05:01 by jwe] jwe parents: 1195 diff changeset	594 imag (const ComplexMatrix& a)
8302fab9fe24 [project @ 1995-04-04 02:05:01 by jwe] jwe parents: 1195 diff changeset	595 {
10363 a0728e81ed25 improve diag matrix interface & implementation Jaroslav Hajek <highegg@gmail.com> parents: 10362 diff changeset	596 return do_mx_unary_op<double, Complex> (a, mx_inline_imag);
1205 8302fab9fe24 [project @ 1995-04-04 02:05:01 by jwe] jwe parents: 1195 diff changeset	597 }
8302fab9fe24 [project @ 1995-04-04 02:05:01 by jwe] jwe parents: 1195 diff changeset	598
8302fab9fe24 [project @ 1995-04-04 02:05:01 by jwe] jwe parents: 1195 diff changeset	599 Matrix
17769 49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	600 Matrix::extract (octave_idx_type r1, octave_idx_type c1,
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	601 octave_idx_type r2, octave_idx_type c2) const
458 38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	602 {
17663 7975d75f933c Use std::swap in liboctave instead of temporary variable. Rik <rik@octave.org> parents: 16300 diff changeset	603 if (r1 > r2) { std::swap (r1, r2); }
7975d75f933c Use std::swap in liboctave instead of temporary variable. Rik <rik@octave.org> parents: 16300 diff changeset	604 if (c1 > c2) { std::swap (c1, c2); }
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	605
10805 8c858a1a2079 simplify Matrix::extract Jaroslav Hajek <highegg@gmail.com> parents: 10630 diff changeset	606 return index (idx_vector (r1, r2+1), idx_vector (c1, c2+1));
4316 236c10efcde2 [project @ 2003-02-10 21:57:15 by jwe] jwe parents: 4309 diff changeset	607 }
236c10efcde2 [project @ 2003-02-10 21:57:15 by jwe] jwe parents: 4309 diff changeset	608
236c10efcde2 [project @ 2003-02-10 21:57:15 by jwe] jwe parents: 4309 diff changeset	609 Matrix
17769 49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	610 Matrix::extract_n (octave_idx_type r1, octave_idx_type c1, octave_idx_type nr,
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	611 octave_idx_type nc) const
4316 236c10efcde2 [project @ 2003-02-10 21:57:15 by jwe] jwe parents: 4309 diff changeset	612 {
10806 7c542263a92a omissions from last two patches Jaroslav Hajek <highegg@gmail.com> parents: 10805 diff changeset	613 return index (idx_vector (r1, r1 + nr), idx_vector (c1, c1 + nc));
458 38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	614 }
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	615
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	616 // extract row or column i.
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	617
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	618 RowVector
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	619 Matrix::row (octave_idx_type i) const
458 38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	620 {
10350 12884915a8e4 merge MArray classes & improve Array interface Jaroslav Hajek <highegg@gmail.com> parents: 10314 diff changeset	621 return index (idx_vector (i), idx_vector::colon);
458 38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	622 }
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	623
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	624 ColumnVector
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	625 Matrix::column (octave_idx_type i) const
458 38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	626 {
10350 12884915a8e4 merge MArray classes & improve Array interface Jaroslav Hajek <highegg@gmail.com> parents: 10314 diff changeset	627 return index (idx_vector::colon, idx_vector (i));
458 38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	628 }
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	629
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	630 Matrix
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	631 Matrix::inverse (void) const
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	632 {
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	633 octave_idx_type info;
7788 45f5faba05a2 Add the rcond function David Bateman <dbateman@free.fr> parents: 7620 diff changeset	634 double rcon;
6207 3c92b8d892dd [project @ 2006-12-06 20:19:14 by dbateman] dbateman parents: 6162 diff changeset	635 MatrixType mattype (*this);
7788 45f5faba05a2 Add the rcond function David Bateman <dbateman@free.fr> parents: 7620 diff changeset	636 return inverse (mattype, info, rcon, 0, 0);
6207 3c92b8d892dd [project @ 2006-12-06 20:19:14 by dbateman] dbateman parents: 6162 diff changeset	637 }
3c92b8d892dd [project @ 2006-12-06 20:19:14 by dbateman] dbateman parents: 6162 diff changeset	638
3c92b8d892dd [project @ 2006-12-06 20:19:14 by dbateman] dbateman parents: 6162 diff changeset	639 Matrix
6479 2ee8293554a3 [project @ 2007-04-03 15:30:58 by jwe] jwe parents: 6390 diff changeset	640 Matrix::inverse (octave_idx_type& info) const
2ee8293554a3 [project @ 2007-04-03 15:30:58 by jwe] jwe parents: 6390 diff changeset	641 {
7788 45f5faba05a2 Add the rcond function David Bateman <dbateman@free.fr> parents: 7620 diff changeset	642 double rcon;
6479 2ee8293554a3 [project @ 2007-04-03 15:30:58 by jwe] jwe parents: 6390 diff changeset	643 MatrixType mattype (*this);
7788 45f5faba05a2 Add the rcond function David Bateman <dbateman@free.fr> parents: 7620 diff changeset	644 return inverse (mattype, info, rcon, 0, 0);
6479 2ee8293554a3 [project @ 2007-04-03 15:30:58 by jwe] jwe parents: 6390 diff changeset	645 }
2ee8293554a3 [project @ 2007-04-03 15:30:58 by jwe] jwe parents: 6390 diff changeset	646
2ee8293554a3 [project @ 2007-04-03 15:30:58 by jwe] jwe parents: 6390 diff changeset	647 Matrix
7788 45f5faba05a2 Add the rcond function David Bateman <dbateman@free.fr> parents: 7620 diff changeset	648 Matrix::inverse (octave_idx_type& info, double& rcon, int force,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	649 int calc_cond) const
6479 2ee8293554a3 [project @ 2007-04-03 15:30:58 by jwe] jwe parents: 6390 diff changeset	650 {
2ee8293554a3 [project @ 2007-04-03 15:30:58 by jwe] jwe parents: 6390 diff changeset	651 MatrixType mattype (*this);
7788 45f5faba05a2 Add the rcond function David Bateman <dbateman@free.fr> parents: 7620 diff changeset	652 return inverse (mattype, info, rcon, force, calc_cond);
6479 2ee8293554a3 [project @ 2007-04-03 15:30:58 by jwe] jwe parents: 6390 diff changeset	653 }
2ee8293554a3 [project @ 2007-04-03 15:30:58 by jwe] jwe parents: 6390 diff changeset	654
2ee8293554a3 [project @ 2007-04-03 15:30:58 by jwe] jwe parents: 6390 diff changeset	655 Matrix
6207 3c92b8d892dd [project @ 2006-12-06 20:19:14 by dbateman] dbateman parents: 6162 diff changeset	656 Matrix::inverse (MatrixType& mattype) const
3c92b8d892dd [project @ 2006-12-06 20:19:14 by dbateman] dbateman parents: 6162 diff changeset	657 {
3c92b8d892dd [project @ 2006-12-06 20:19:14 by dbateman] dbateman parents: 6162 diff changeset	658 octave_idx_type info;
7788 45f5faba05a2 Add the rcond function David Bateman <dbateman@free.fr> parents: 7620 diff changeset	659 double rcon;
45f5faba05a2 Add the rcond function David Bateman <dbateman@free.fr> parents: 7620 diff changeset	660 return inverse (mattype, info, rcon, 0, 0);
6207 3c92b8d892dd [project @ 2006-12-06 20:19:14 by dbateman] dbateman parents: 6162 diff changeset	661 }
3c92b8d892dd [project @ 2006-12-06 20:19:14 by dbateman] dbateman parents: 6162 diff changeset	662
3c92b8d892dd [project @ 2006-12-06 20:19:14 by dbateman] dbateman parents: 6162 diff changeset	663 Matrix
3c92b8d892dd [project @ 2006-12-06 20:19:14 by dbateman] dbateman parents: 6162 diff changeset	664 Matrix::inverse (MatrixType &mattype, octave_idx_type& info) const
3c92b8d892dd [project @ 2006-12-06 20:19:14 by dbateman] dbateman parents: 6162 diff changeset	665 {
7788 45f5faba05a2 Add the rcond function David Bateman <dbateman@free.fr> parents: 7620 diff changeset	666 double rcon;
45f5faba05a2 Add the rcond function David Bateman <dbateman@free.fr> parents: 7620 diff changeset	667 return inverse (mattype, info, rcon, 0, 0);
458 38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	668 }
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	669
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	670 Matrix
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11574 diff changeset	671 Matrix::tinverse (MatrixType &mattype, octave_idx_type& info, double& rcon,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	672 int force, int calc_cond) const
458 38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	673 {
6207 3c92b8d892dd [project @ 2006-12-06 20:19:14 by dbateman] dbateman parents: 6162 diff changeset	674 Matrix retval;
3c92b8d892dd [project @ 2006-12-06 20:19:14 by dbateman] dbateman parents: 6162 diff changeset	675
3c92b8d892dd [project @ 2006-12-06 20:19:14 by dbateman] dbateman parents: 6162 diff changeset	676 octave_idx_type nr = rows ();
3c92b8d892dd [project @ 2006-12-06 20:19:14 by dbateman] dbateman parents: 6162 diff changeset	677 octave_idx_type nc = cols ();
3c92b8d892dd [project @ 2006-12-06 20:19:14 by dbateman] dbateman parents: 6162 diff changeset	678
3c92b8d892dd [project @ 2006-12-06 20:19:14 by dbateman] dbateman parents: 6162 diff changeset	679 if (nr != nc \|\| nr == 0 \|\| nc == 0)
3c92b8d892dd [project @ 2006-12-06 20:19:14 by dbateman] dbateman parents: 6162 diff changeset	680 (*current_liboctave_error_handler) ("inverse requires square matrix");
3c92b8d892dd [project @ 2006-12-06 20:19:14 by dbateman] dbateman parents: 6162 diff changeset	681 else
3c92b8d892dd [project @ 2006-12-06 20:19:14 by dbateman] dbateman parents: 6162 diff changeset	682 {
3c92b8d892dd [project @ 2006-12-06 20:19:14 by dbateman] dbateman parents: 6162 diff changeset	683 int typ = mattype.type ();
3c92b8d892dd [project @ 2006-12-06 20:19:14 by dbateman] dbateman parents: 6162 diff changeset	684 char uplo = (typ == MatrixType::Lower ? 'L' : 'U');
3c92b8d892dd [project @ 2006-12-06 20:19:14 by dbateman] dbateman parents: 6162 diff changeset	685 char udiag = 'N';
3c92b8d892dd [project @ 2006-12-06 20:19:14 by dbateman] dbateman parents: 6162 diff changeset	686 retval = *this;
3c92b8d892dd [project @ 2006-12-06 20:19:14 by dbateman] dbateman parents: 6162 diff changeset	687 double *tmp_data = retval.fortran_vec ();
3c92b8d892dd [project @ 2006-12-06 20:19:14 by dbateman] dbateman parents: 6162 diff changeset	688
3c92b8d892dd [project @ 2006-12-06 20:19:14 by dbateman] dbateman parents: 6162 diff changeset	689 F77_XFCN (dtrtri, DTRTRI, (F77_CONST_CHAR_ARG2 (&uplo, 1),
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	690 F77_CONST_CHAR_ARG2 (&udiag, 1),
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11574 diff changeset	691 nr, tmp_data, nr, info
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	692 F77_CHAR_ARG_LEN (1)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	693 F77_CHAR_ARG_LEN (1)));
6207 3c92b8d892dd [project @ 2006-12-06 20:19:14 by dbateman] dbateman parents: 6162 diff changeset	694
7482 29980c6b8604 don't check f77_exception_encountered John W. Eaton <jwe@octave.org> parents: 7478 diff changeset	695 // Throw-away extra info LAPACK gives so as to not change output.
7788 45f5faba05a2 Add the rcond function David Bateman <dbateman@free.fr> parents: 7620 diff changeset	696 rcon = 0.0;
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11574 diff changeset	697 if (info != 0)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	698 info = -1;
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11574 diff changeset	699 else if (calc_cond)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	700 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	701 octave_idx_type dtrcon_info = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	702 char job = '1';
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	703
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	704 OCTAVE_LOCAL_BUFFER (double, work, 3 * nr);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	705 OCTAVE_LOCAL_BUFFER (octave_idx_type, iwork, nr);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	706
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	707 F77_XFCN (dtrcon, DTRCON, (F77_CONST_CHAR_ARG2 (&job, 1),
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	708 F77_CONST_CHAR_ARG2 (&uplo, 1),
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	709 F77_CONST_CHAR_ARG2 (&udiag, 1),
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11574 diff changeset	710 nr, tmp_data, nr, rcon,
12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11574 diff changeset	711 work, iwork, dtrcon_info
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	712 F77_CHAR_ARG_LEN (1)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	713 F77_CHAR_ARG_LEN (1)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	714 F77_CHAR_ARG_LEN (1)));
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	715
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11574 diff changeset	716 if (dtrcon_info != 0)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	717 info = -1;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	718 }
6207 3c92b8d892dd [project @ 2006-12-06 20:19:14 by dbateman] dbateman parents: 6162 diff changeset	719
3c92b8d892dd [project @ 2006-12-06 20:19:14 by dbateman] dbateman parents: 6162 diff changeset	720 if (info == -1 && ! force)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	721 retval = *this; // Restore matrix contents.
6207 3c92b8d892dd [project @ 2006-12-06 20:19:14 by dbateman] dbateman parents: 6162 diff changeset	722 }
3c92b8d892dd [project @ 2006-12-06 20:19:14 by dbateman] dbateman parents: 6162 diff changeset	723
3c92b8d892dd [project @ 2006-12-06 20:19:14 by dbateman] dbateman parents: 6162 diff changeset	724 return retval;
458 38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	725 }
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	726
6207 3c92b8d892dd [project @ 2006-12-06 20:19:14 by dbateman] dbateman parents: 6162 diff changeset	727
458 38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	728 Matrix
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11574 diff changeset	729 Matrix::finverse (MatrixType &mattype, octave_idx_type& info, double& rcon,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	730 int force, int calc_cond) const
458 38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	731 {
1948 d7dec93d4b87 [project @ 1996-02-14 03:45:49 by jwe] jwe parents: 1882 diff changeset	732 Matrix retval;
d7dec93d4b87 [project @ 1996-02-14 03:45:49 by jwe] jwe parents: 1882 diff changeset	733
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	734 octave_idx_type nr = rows ();
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	735 octave_idx_type nc = cols ();
1948 d7dec93d4b87 [project @ 1996-02-14 03:45:49 by jwe] jwe parents: 1882 diff changeset	736
458 38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	737 if (nr != nc \|\| nr == 0 \|\| nc == 0)
1948 d7dec93d4b87 [project @ 1996-02-14 03:45:49 by jwe] jwe parents: 1882 diff changeset	738 (*current_liboctave_error_handler) ("inverse requires square matrix");
458 38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	739 else
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	740 {
11570 57632dea2446 attempt better backward compatibility for Array constructors John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	741 Array<octave_idx_type> ipvt (dim_vector (nr, 1));
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	742 octave_idx_type *pipvt = ipvt.fortran_vec ();
1948 d7dec93d4b87 [project @ 1996-02-14 03:45:49 by jwe] jwe parents: 1882 diff changeset	743
d7dec93d4b87 [project @ 1996-02-14 03:45:49 by jwe] jwe parents: 1882 diff changeset	744 retval = *this;
d7dec93d4b87 [project @ 1996-02-14 03:45:49 by jwe] jwe parents: 1882 diff changeset	745 double *tmp_data = retval.fortran_vec ();
d7dec93d4b87 [project @ 1996-02-14 03:45:49 by jwe] jwe parents: 1882 diff changeset	746
11570 57632dea2446 attempt better backward compatibility for Array constructors John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	747 Array<double> z (dim_vector (1, 1));
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	748 octave_idx_type lwork = -1;
4329 d53c33d93440 [project @ 2003-02-18 20:00:48 by jwe] jwe parents: 4316 diff changeset	749
4330 9f86c2055b58 [project @ 2003-02-18 22:31:55 by jwe] jwe parents: 4329 diff changeset	750 // Query the optimum work array size.
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11574 diff changeset	751 F77_XFCN (dgetri, DGETRI, (nc, tmp_data, nr, pipvt,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	752 z.fortran_vec (), lwork, info));
4329 d53c33d93440 [project @ 2003-02-18 20:00:48 by jwe] jwe parents: 4316 diff changeset	753
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	754 lwork = static_cast<octave_idx_type> (z(0));
4329 d53c33d93440 [project @ 2003-02-18 20:00:48 by jwe] jwe parents: 4316 diff changeset	755 lwork = (lwork < 2 nc ? 2nc : lwork);
11574 a83bad07f7e3 attempt better backward compatibility for Array resize functions John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	756 z.resize (dim_vector (lwork, 1));
4329 d53c33d93440 [project @ 2003-02-18 20:00:48 by jwe] jwe parents: 4316 diff changeset	757 double *pz = z.fortran_vec ();
d53c33d93440 [project @ 2003-02-18 20:00:48 by jwe] jwe parents: 4316 diff changeset	758
d53c33d93440 [project @ 2003-02-18 20:00:48 by jwe] jwe parents: 4316 diff changeset	759 info = 0;
d53c33d93440 [project @ 2003-02-18 20:00:48 by jwe] jwe parents: 4316 diff changeset	760
4330 9f86c2055b58 [project @ 2003-02-18 22:31:55 by jwe] jwe parents: 4329 diff changeset	761 // Calculate the norm of the matrix, for later use.
4329 d53c33d93440 [project @ 2003-02-18 20:00:48 by jwe] jwe parents: 4316 diff changeset	762 double anorm = 0;
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11574 diff changeset	763 if (calc_cond)
17769 49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	764 anorm = retval.abs ().sum ().row (static_cast<octave_idx_type>(0))
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	765 .max ();
4329 d53c33d93440 [project @ 2003-02-18 20:00:48 by jwe] jwe parents: 4316 diff changeset	766
d53c33d93440 [project @ 2003-02-18 20:00:48 by jwe] jwe parents: 4316 diff changeset	767 F77_XFCN (dgetrf, DGETRF, (nc, nc, tmp_data, nr, pipvt, info));
1948 d7dec93d4b87 [project @ 1996-02-14 03:45:49 by jwe] jwe parents: 1882 diff changeset	768
7482 29980c6b8604 don't check f77_exception_encountered John W. Eaton <jwe@octave.org> parents: 7478 diff changeset	769 // Throw-away extra info LAPACK gives so as to not change output.
7788 45f5faba05a2 Add the rcond function David Bateman <dbateman@free.fr> parents: 7620 diff changeset	770 rcon = 0.0;
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11574 diff changeset	771 if (info != 0)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	772 info = -1;
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11574 diff changeset	773 else if (calc_cond)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	774 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	775 octave_idx_type dgecon_info = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	776
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	777 // Now calculate the condition number for non-singular matrix.
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	778 char job = '1';
11570 57632dea2446 attempt better backward compatibility for Array constructors John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	779 Array<octave_idx_type> iz (dim_vector (nc, 1));
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	780 octave_idx_type *piz = iz.fortran_vec ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	781 F77_XFCN (dgecon, DGECON, (F77_CONST_CHAR_ARG2 (&job, 1),
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11574 diff changeset	782 nc, tmp_data, nr, anorm,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	783 rcon, pz, piz, dgecon_info
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	784 F77_CHAR_ARG_LEN (1)));
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	785
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11574 diff changeset	786 if (dgecon_info != 0)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	787 info = -1;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	788 }
7482 29980c6b8604 don't check f77_exception_encountered John W. Eaton <jwe@octave.org> parents: 7478 diff changeset	789
29980c6b8604 don't check f77_exception_encountered John W. Eaton <jwe@octave.org> parents: 7478 diff changeset	790 if (info == -1 && ! force)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	791 retval = *this; // Restore matrix contents.
1948 d7dec93d4b87 [project @ 1996-02-14 03:45:49 by jwe] jwe parents: 1882 diff changeset	792 else
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	793 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	794 octave_idx_type dgetri_info = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	795
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	796 F77_XFCN (dgetri, DGETRI, (nc, tmp_data, nr, pipvt,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	797 pz, lwork, dgetri_info));
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	798
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11574 diff changeset	799 if (dgetri_info != 0)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	800 info = -1;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	801 }
6207 3c92b8d892dd [project @ 2006-12-06 20:19:14 by dbateman] dbateman parents: 6162 diff changeset	802
3c92b8d892dd [project @ 2006-12-06 20:19:14 by dbateman] dbateman parents: 6162 diff changeset	803 if (info != 0)
14846 460a3c6d8bf1 maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists. Rik <octave@nomad.inbox5.com> parents: 14557 diff changeset	804 mattype.mark_as_rectangular ();
458 38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	805 }
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	806
1948 d7dec93d4b87 [project @ 1996-02-14 03:45:49 by jwe] jwe parents: 1882 diff changeset	807 return retval;
458 38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	808 }
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	809
740 d8295febb0df [project @ 1994-09-30 14:42:37 by jwe] jwe parents: 677 diff changeset	810 Matrix
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11574 diff changeset	811 Matrix::inverse (MatrixType &mattype, octave_idx_type& info, double& rcon,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	812 int force, int calc_cond) const
6207 3c92b8d892dd [project @ 2006-12-06 20:19:14 by dbateman] dbateman parents: 6162 diff changeset	813 {
3c92b8d892dd [project @ 2006-12-06 20:19:14 by dbateman] dbateman parents: 6162 diff changeset	814 int typ = mattype.type (false);
3c92b8d892dd [project @ 2006-12-06 20:19:14 by dbateman] dbateman parents: 6162 diff changeset	815 Matrix ret;
3c92b8d892dd [project @ 2006-12-06 20:19:14 by dbateman] dbateman parents: 6162 diff changeset	816
3c92b8d892dd [project @ 2006-12-06 20:19:14 by dbateman] dbateman parents: 6162 diff changeset	817 if (typ == MatrixType::Unknown)
3c92b8d892dd [project @ 2006-12-06 20:19:14 by dbateman] dbateman parents: 6162 diff changeset	818 typ = mattype.type (*this);
3c92b8d892dd [project @ 2006-12-06 20:19:14 by dbateman] dbateman parents: 6162 diff changeset	819
3c92b8d892dd [project @ 2006-12-06 20:19:14 by dbateman] dbateman parents: 6162 diff changeset	820 if (typ == MatrixType::Upper \|\| typ == MatrixType::Lower)
7788 45f5faba05a2 Add the rcond function David Bateman <dbateman@free.fr> parents: 7620 diff changeset	821 ret = tinverse (mattype, info, rcon, force, calc_cond);
6840 2f17d5556756 [project @ 2007-08-29 08:37:47 by dbateman] dbateman parents: 6699 diff changeset	822 else
6207 3c92b8d892dd [project @ 2006-12-06 20:19:14 by dbateman] dbateman parents: 6162 diff changeset	823 {
3c92b8d892dd [project @ 2006-12-06 20:19:14 by dbateman] dbateman parents: 6162 diff changeset	824 if (mattype.is_hermitian ())
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	825 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	826 CHOL chol (*this, info, calc_cond);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	827 if (info == 0)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	828 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	829 if (calc_cond)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	830 rcon = chol.rcond ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	831 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	832 rcon = 1.0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	833 ret = chol.inverse ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	834 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	835 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	836 mattype.mark_as_unsymmetric ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	837 }
6207 3c92b8d892dd [project @ 2006-12-06 20:19:14 by dbateman] dbateman parents: 6162 diff changeset	838
3c92b8d892dd [project @ 2006-12-06 20:19:14 by dbateman] dbateman parents: 6162 diff changeset	839 if (!mattype.is_hermitian ())
15018 3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/. Rik <rik@octave.org> parents: 14846 diff changeset	840 ret = finverse (mattype, info, rcon, force, calc_cond);
7788 45f5faba05a2 Add the rcond function David Bateman <dbateman@free.fr> parents: 7620 diff changeset	841
45f5faba05a2 Add the rcond function David Bateman <dbateman@free.fr> parents: 7620 diff changeset	842 if ((mattype.is_hermitian () \|\| calc_cond) && rcon == 0.)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	843 ret = Matrix (rows (), columns (), octave_Inf);
6207 3c92b8d892dd [project @ 2006-12-06 20:19:14 by dbateman] dbateman parents: 6162 diff changeset	844 }
3c92b8d892dd [project @ 2006-12-06 20:19:14 by dbateman] dbateman parents: 6162 diff changeset	845
3c92b8d892dd [project @ 2006-12-06 20:19:14 by dbateman] dbateman parents: 6162 diff changeset	846 return ret;
3c92b8d892dd [project @ 2006-12-06 20:19:14 by dbateman] dbateman parents: 6162 diff changeset	847 }
3c92b8d892dd [project @ 2006-12-06 20:19:14 by dbateman] dbateman parents: 6162 diff changeset	848
3c92b8d892dd [project @ 2006-12-06 20:19:14 by dbateman] dbateman parents: 6162 diff changeset	849 Matrix
4384 f1fcc371e5ef [project @ 2003-04-23 19:51:57 by jwe] jwe parents: 4330 diff changeset	850 Matrix::pseudo_inverse (double tol) const
740 d8295febb0df [project @ 1994-09-30 14:42:37 by jwe] jwe parents: 677 diff changeset	851 {
3480 45742a3b1f7c [project @ 2000-01-26 06:16:41 by jwe] jwe parents: 3469 diff changeset	852 SVD result (*this, SVD::economy);
740 d8295febb0df [project @ 1994-09-30 14:42:37 by jwe] jwe parents: 677 diff changeset	853
d8295febb0df [project @ 1994-09-30 14:42:37 by jwe] jwe parents: 677 diff changeset	854 DiagMatrix S = result.singular_values ();
d8295febb0df [project @ 1994-09-30 14:42:37 by jwe] jwe parents: 677 diff changeset	855 Matrix U = result.left_singular_matrix ();
d8295febb0df [project @ 1994-09-30 14:42:37 by jwe] jwe parents: 677 diff changeset	856 Matrix V = result.right_singular_matrix ();
d8295febb0df [project @ 1994-09-30 14:42:37 by jwe] jwe parents: 677 diff changeset	857
15448 0a0912a9ab6e Replace deprecated DiagArray2<T>::diag calls with DiagArray2<T>::extract_diag Jordi Gutiérrez Hermoso <jordigh@octave.org> parents: 15383 diff changeset	858 ColumnVector sigma = S.extract_diag ();
740 d8295febb0df [project @ 1994-09-30 14:42:37 by jwe] jwe parents: 677 diff changeset	859
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	860 octave_idx_type r = sigma.length () - 1;
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	861 octave_idx_type nr = rows ();
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	862 octave_idx_type nc = cols ();
740 d8295febb0df [project @ 1994-09-30 14:42:37 by jwe] jwe parents: 677 diff changeset	863
d8295febb0df [project @ 1994-09-30 14:42:37 by jwe] jwe parents: 677 diff changeset	864 if (tol <= 0.0)
d8295febb0df [project @ 1994-09-30 14:42:37 by jwe] jwe parents: 677 diff changeset	865 {
d8295febb0df [project @ 1994-09-30 14:42:37 by jwe] jwe parents: 677 diff changeset	866 if (nr > nc)
15220 61822c866ba1 use std::numeric_limits<T>::epsilon in C++ code John W. Eaton <jwe@octave.org> parents: 15212 diff changeset	867 tol = nr * sigma.elem (0) * std::numeric_limits<double>::epsilon ();
740 d8295febb0df [project @ 1994-09-30 14:42:37 by jwe] jwe parents: 677 diff changeset	868 else
15220 61822c866ba1 use std::numeric_limits<T>::epsilon in C++ code John W. Eaton <jwe@octave.org> parents: 15212 diff changeset	869 tol = nc * sigma.elem (0) * std::numeric_limits<double>::epsilon ();
740 d8295febb0df [project @ 1994-09-30 14:42:37 by jwe] jwe parents: 677 diff changeset	870 }
d8295febb0df [project @ 1994-09-30 14:42:37 by jwe] jwe parents: 677 diff changeset	871
d8295febb0df [project @ 1994-09-30 14:42:37 by jwe] jwe parents: 677 diff changeset	872 while (r >= 0 && sigma.elem (r) < tol)
d8295febb0df [project @ 1994-09-30 14:42:37 by jwe] jwe parents: 677 diff changeset	873 r--;
d8295febb0df [project @ 1994-09-30 14:42:37 by jwe] jwe parents: 677 diff changeset	874
d8295febb0df [project @ 1994-09-30 14:42:37 by jwe] jwe parents: 677 diff changeset	875 if (r < 0)
d8295febb0df [project @ 1994-09-30 14:42:37 by jwe] jwe parents: 677 diff changeset	876 return Matrix (nc, nr, 0.0);
d8295febb0df [project @ 1994-09-30 14:42:37 by jwe] jwe parents: 677 diff changeset	877 else
d8295febb0df [project @ 1994-09-30 14:42:37 by jwe] jwe parents: 677 diff changeset	878 {
d8295febb0df [project @ 1994-09-30 14:42:37 by jwe] jwe parents: 677 diff changeset	879 Matrix Ur = U.extract (0, 0, nr-1, r);
d8295febb0df [project @ 1994-09-30 14:42:37 by jwe] jwe parents: 677 diff changeset	880 DiagMatrix D = DiagMatrix (sigma.extract (0, r)) . inverse ();
d8295febb0df [project @ 1994-09-30 14:42:37 by jwe] jwe parents: 677 diff changeset	881 Matrix Vr = V.extract (0, 0, nc-1, r);
d8295febb0df [project @ 1994-09-30 14:42:37 by jwe] jwe parents: 677 diff changeset	882 return Vr * D * Ur.transpose ();
d8295febb0df [project @ 1994-09-30 14:42:37 by jwe] jwe parents: 677 diff changeset	883 }
d8295febb0df [project @ 1994-09-30 14:42:37 by jwe] jwe parents: 677 diff changeset	884 }
d8295febb0df [project @ 1994-09-30 14:42:37 by jwe] jwe parents: 677 diff changeset	885
9523 0ce82753dd72 more configure changes for libraries John W. Eaton <jwe@octave.org> parents: 9469 diff changeset	886 #if defined (HAVE_FFTW)
3827 ba548facf43b [project @ 2001-05-02 06:15:06 by jwe] jwe parents: 3769 diff changeset	887
ba548facf43b [project @ 2001-05-02 06:15:06 by jwe] jwe parents: 3769 diff changeset	888 ComplexMatrix
ba548facf43b [project @ 2001-05-02 06:15:06 by jwe] jwe parents: 3769 diff changeset	889 Matrix::fourier (void) const
ba548facf43b [project @ 2001-05-02 06:15:06 by jwe] jwe parents: 3769 diff changeset	890 {
ba548facf43b [project @ 2001-05-02 06:15:06 by jwe] jwe parents: 3769 diff changeset	891 size_t nr = rows ();
ba548facf43b [project @ 2001-05-02 06:15:06 by jwe] jwe parents: 3769 diff changeset	892 size_t nc = cols ();
ba548facf43b [project @ 2001-05-02 06:15:06 by jwe] jwe parents: 3769 diff changeset	893
ba548facf43b [project @ 2001-05-02 06:15:06 by jwe] jwe parents: 3769 diff changeset	894 ComplexMatrix retval (nr, nc);
ba548facf43b [project @ 2001-05-02 06:15:06 by jwe] jwe parents: 3769 diff changeset	895
ba548facf43b [project @ 2001-05-02 06:15:06 by jwe] jwe parents: 3769 diff changeset	896 size_t npts, nsamples;
ba548facf43b [project @ 2001-05-02 06:15:06 by jwe] jwe parents: 3769 diff changeset	897
ba548facf43b [project @ 2001-05-02 06:15:06 by jwe] jwe parents: 3769 diff changeset	898 if (nr == 1 \|\| nc == 1)
ba548facf43b [project @ 2001-05-02 06:15:06 by jwe] jwe parents: 3769 diff changeset	899 {
ba548facf43b [project @ 2001-05-02 06:15:06 by jwe] jwe parents: 3769 diff changeset	900 npts = nr > nc ? nr : nc;
ba548facf43b [project @ 2001-05-02 06:15:06 by jwe] jwe parents: 3769 diff changeset	901 nsamples = 1;
ba548facf43b [project @ 2001-05-02 06:15:06 by jwe] jwe parents: 3769 diff changeset	902 }
ba548facf43b [project @ 2001-05-02 06:15:06 by jwe] jwe parents: 3769 diff changeset	903 else
ba548facf43b [project @ 2001-05-02 06:15:06 by jwe] jwe parents: 3769 diff changeset	904 {
ba548facf43b [project @ 2001-05-02 06:15:06 by jwe] jwe parents: 3769 diff changeset	905 npts = nr;
ba548facf43b [project @ 2001-05-02 06:15:06 by jwe] jwe parents: 3769 diff changeset	906 nsamples = nc;
ba548facf43b [project @ 2001-05-02 06:15:06 by jwe] jwe parents: 3769 diff changeset	907 }
ba548facf43b [project @ 2001-05-02 06:15:06 by jwe] jwe parents: 3769 diff changeset	908
4773 ccfbd6047a54 [project @ 2004-02-16 19:02:32 by jwe] jwe parents: 4669 diff changeset	909 const double *in (fortran_vec ());
3827 ba548facf43b [project @ 2001-05-02 06:15:06 by jwe] jwe parents: 3769 diff changeset	910 Complex *out (retval.fortran_vec ());
ba548facf43b [project @ 2001-05-02 06:15:06 by jwe] jwe parents: 3769 diff changeset	911
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11574 diff changeset	912 octave_fftw::fft (in, out, npts, nsamples);
3827 ba548facf43b [project @ 2001-05-02 06:15:06 by jwe] jwe parents: 3769 diff changeset	913
ba548facf43b [project @ 2001-05-02 06:15:06 by jwe] jwe parents: 3769 diff changeset	914 return retval;
ba548facf43b [project @ 2001-05-02 06:15:06 by jwe] jwe parents: 3769 diff changeset	915 }
ba548facf43b [project @ 2001-05-02 06:15:06 by jwe] jwe parents: 3769 diff changeset	916
ba548facf43b [project @ 2001-05-02 06:15:06 by jwe] jwe parents: 3769 diff changeset	917 ComplexMatrix
ba548facf43b [project @ 2001-05-02 06:15:06 by jwe] jwe parents: 3769 diff changeset	918 Matrix::ifourier (void) const
ba548facf43b [project @ 2001-05-02 06:15:06 by jwe] jwe parents: 3769 diff changeset	919 {
ba548facf43b [project @ 2001-05-02 06:15:06 by jwe] jwe parents: 3769 diff changeset	920 size_t nr = rows ();
ba548facf43b [project @ 2001-05-02 06:15:06 by jwe] jwe parents: 3769 diff changeset	921 size_t nc = cols ();
ba548facf43b [project @ 2001-05-02 06:15:06 by jwe] jwe parents: 3769 diff changeset	922
ba548facf43b [project @ 2001-05-02 06:15:06 by jwe] jwe parents: 3769 diff changeset	923 ComplexMatrix retval (nr, nc);
ba548facf43b [project @ 2001-05-02 06:15:06 by jwe] jwe parents: 3769 diff changeset	924
ba548facf43b [project @ 2001-05-02 06:15:06 by jwe] jwe parents: 3769 diff changeset	925 size_t npts, nsamples;
ba548facf43b [project @ 2001-05-02 06:15:06 by jwe] jwe parents: 3769 diff changeset	926
ba548facf43b [project @ 2001-05-02 06:15:06 by jwe] jwe parents: 3769 diff changeset	927 if (nr == 1 \|\| nc == 1)
ba548facf43b [project @ 2001-05-02 06:15:06 by jwe] jwe parents: 3769 diff changeset	928 {
ba548facf43b [project @ 2001-05-02 06:15:06 by jwe] jwe parents: 3769 diff changeset	929 npts = nr > nc ? nr : nc;
ba548facf43b [project @ 2001-05-02 06:15:06 by jwe] jwe parents: 3769 diff changeset	930 nsamples = 1;
ba548facf43b [project @ 2001-05-02 06:15:06 by jwe] jwe parents: 3769 diff changeset	931 }
ba548facf43b [project @ 2001-05-02 06:15:06 by jwe] jwe parents: 3769 diff changeset	932 else
ba548facf43b [project @ 2001-05-02 06:15:06 by jwe] jwe parents: 3769 diff changeset	933 {
ba548facf43b [project @ 2001-05-02 06:15:06 by jwe] jwe parents: 3769 diff changeset	934 npts = nr;
ba548facf43b [project @ 2001-05-02 06:15:06 by jwe] jwe parents: 3769 diff changeset	935 nsamples = nc;
ba548facf43b [project @ 2001-05-02 06:15:06 by jwe] jwe parents: 3769 diff changeset	936 }
ba548facf43b [project @ 2001-05-02 06:15:06 by jwe] jwe parents: 3769 diff changeset	937
ba548facf43b [project @ 2001-05-02 06:15:06 by jwe] jwe parents: 3769 diff changeset	938 ComplexMatrix tmp (*this);
ba548facf43b [project @ 2001-05-02 06:15:06 by jwe] jwe parents: 3769 diff changeset	939 Complex *in (tmp.fortran_vec ());
ba548facf43b [project @ 2001-05-02 06:15:06 by jwe] jwe parents: 3769 diff changeset	940 Complex *out (retval.fortran_vec ());
ba548facf43b [project @ 2001-05-02 06:15:06 by jwe] jwe parents: 3769 diff changeset	941
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11574 diff changeset	942 octave_fftw::ifft (in, out, npts, nsamples);
3827 ba548facf43b [project @ 2001-05-02 06:15:06 by jwe] jwe parents: 3769 diff changeset	943
ba548facf43b [project @ 2001-05-02 06:15:06 by jwe] jwe parents: 3769 diff changeset	944 return retval;
ba548facf43b [project @ 2001-05-02 06:15:06 by jwe] jwe parents: 3769 diff changeset	945 }
ba548facf43b [project @ 2001-05-02 06:15:06 by jwe] jwe parents: 3769 diff changeset	946
ba548facf43b [project @ 2001-05-02 06:15:06 by jwe] jwe parents: 3769 diff changeset	947 ComplexMatrix
ba548facf43b [project @ 2001-05-02 06:15:06 by jwe] jwe parents: 3769 diff changeset	948 Matrix::fourier2d (void) const
ba548facf43b [project @ 2001-05-02 06:15:06 by jwe] jwe parents: 3769 diff changeset	949 {
4773 ccfbd6047a54 [project @ 2004-02-16 19:02:32 by jwe] jwe parents: 4669 diff changeset	950 dim_vector dv(rows (), cols ());
ccfbd6047a54 [project @ 2004-02-16 19:02:32 by jwe] jwe parents: 4669 diff changeset	951
ccfbd6047a54 [project @ 2004-02-16 19:02:32 by jwe] jwe parents: 4669 diff changeset	952 const double *in = fortran_vec ();
ccfbd6047a54 [project @ 2004-02-16 19:02:32 by jwe] jwe parents: 4669 diff changeset	953 ComplexMatrix retval (rows (), cols ());
ccfbd6047a54 [project @ 2004-02-16 19:02:32 by jwe] jwe parents: 4669 diff changeset	954 octave_fftw::fftNd (in, retval.fortran_vec (), 2, dv);
3827 ba548facf43b [project @ 2001-05-02 06:15:06 by jwe] jwe parents: 3769 diff changeset	955
ba548facf43b [project @ 2001-05-02 06:15:06 by jwe] jwe parents: 3769 diff changeset	956 return retval;
ba548facf43b [project @ 2001-05-02 06:15:06 by jwe] jwe parents: 3769 diff changeset	957 }
ba548facf43b [project @ 2001-05-02 06:15:06 by jwe] jwe parents: 3769 diff changeset	958
ba548facf43b [project @ 2001-05-02 06:15:06 by jwe] jwe parents: 3769 diff changeset	959 ComplexMatrix
ba548facf43b [project @ 2001-05-02 06:15:06 by jwe] jwe parents: 3769 diff changeset	960 Matrix::ifourier2d (void) const
ba548facf43b [project @ 2001-05-02 06:15:06 by jwe] jwe parents: 3769 diff changeset	961 {
4773 ccfbd6047a54 [project @ 2004-02-16 19:02:32 by jwe] jwe parents: 4669 diff changeset	962 dim_vector dv(rows (), cols ());
3827 ba548facf43b [project @ 2001-05-02 06:15:06 by jwe] jwe parents: 3769 diff changeset	963
ba548facf43b [project @ 2001-05-02 06:15:06 by jwe] jwe parents: 3769 diff changeset	964 ComplexMatrix retval (*this);
4773 ccfbd6047a54 [project @ 2004-02-16 19:02:32 by jwe] jwe parents: 4669 diff changeset	965 Complex *out (retval.fortran_vec ());
ccfbd6047a54 [project @ 2004-02-16 19:02:32 by jwe] jwe parents: 4669 diff changeset	966
ccfbd6047a54 [project @ 2004-02-16 19:02:32 by jwe] jwe parents: 4669 diff changeset	967 octave_fftw::ifftNd (out, out, 2, dv);
3827 ba548facf43b [project @ 2001-05-02 06:15:06 by jwe] jwe parents: 3769 diff changeset	968
ba548facf43b [project @ 2001-05-02 06:15:06 by jwe] jwe parents: 3769 diff changeset	969 return retval;
ba548facf43b [project @ 2001-05-02 06:15:06 by jwe] jwe parents: 3769 diff changeset	970 }
ba548facf43b [project @ 2001-05-02 06:15:06 by jwe] jwe parents: 3769 diff changeset	971
ba548facf43b [project @ 2001-05-02 06:15:06 by jwe] jwe parents: 3769 diff changeset	972 #else
ba548facf43b [project @ 2001-05-02 06:15:06 by jwe] jwe parents: 3769 diff changeset	973
9523 0ce82753dd72 more configure changes for libraries John W. Eaton <jwe@octave.org> parents: 9469 diff changeset	974 extern "C"
0ce82753dd72 more configure changes for libraries John W. Eaton <jwe@octave.org> parents: 9469 diff changeset	975 {
0ce82753dd72 more configure changes for libraries John W. Eaton <jwe@octave.org> parents: 9469 diff changeset	976 // Note that the original complex fft routines were not written for
0ce82753dd72 more configure changes for libraries John W. Eaton <jwe@octave.org> parents: 9469 diff changeset	977 // double complex arguments. They have been modified by adding an
0ce82753dd72 more configure changes for libraries John W. Eaton <jwe@octave.org> parents: 9469 diff changeset	978 // implicit double precision (a-h,o-z) statement at the beginning of
0ce82753dd72 more configure changes for libraries John W. Eaton <jwe@octave.org> parents: 9469 diff changeset	979 // each subroutine.
0ce82753dd72 more configure changes for libraries John W. Eaton <jwe@octave.org> parents: 9469 diff changeset	980
0ce82753dd72 more configure changes for libraries John W. Eaton <jwe@octave.org> parents: 9469 diff changeset	981 F77_RET_T
0ce82753dd72 more configure changes for libraries John W. Eaton <jwe@octave.org> parents: 9469 diff changeset	982 F77_FUNC (zffti, ZFFTI) (const octave_idx_type&, Complex*);
0ce82753dd72 more configure changes for libraries John W. Eaton <jwe@octave.org> parents: 9469 diff changeset	983
0ce82753dd72 more configure changes for libraries John W. Eaton <jwe@octave.org> parents: 9469 diff changeset	984 F77_RET_T
0ce82753dd72 more configure changes for libraries John W. Eaton <jwe@octave.org> parents: 9469 diff changeset	985 F77_FUNC (zfftf, ZFFTF) (const octave_idx_type&, Complex, Complex);
0ce82753dd72 more configure changes for libraries John W. Eaton <jwe@octave.org> parents: 9469 diff changeset	986
0ce82753dd72 more configure changes for libraries John W. Eaton <jwe@octave.org> parents: 9469 diff changeset	987 F77_RET_T
0ce82753dd72 more configure changes for libraries John W. Eaton <jwe@octave.org> parents: 9469 diff changeset	988 F77_FUNC (zfftb, ZFFTB) (const octave_idx_type&, Complex, Complex);
0ce82753dd72 more configure changes for libraries John W. Eaton <jwe@octave.org> parents: 9469 diff changeset	989 }
0ce82753dd72 more configure changes for libraries John W. Eaton <jwe@octave.org> parents: 9469 diff changeset	990
458 38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	991 ComplexMatrix
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	992 Matrix::fourier (void) const
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	993 {
1948 d7dec93d4b87 [project @ 1996-02-14 03:45:49 by jwe] jwe parents: 1882 diff changeset	994 ComplexMatrix retval;
d7dec93d4b87 [project @ 1996-02-14 03:45:49 by jwe] jwe parents: 1882 diff changeset	995
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	996 octave_idx_type nr = rows ();
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	997 octave_idx_type nc = cols ();
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	998
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	999 octave_idx_type npts, nsamples;
1948 d7dec93d4b87 [project @ 1996-02-14 03:45:49 by jwe] jwe parents: 1882 diff changeset	1000
458 38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	1001 if (nr == 1 \|\| nc == 1)
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	1002 {
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	1003 npts = nr > nc ? nr : nc;
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	1004 nsamples = 1;
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	1005 }
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	1006 else
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	1007 {
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	1008 npts = nr;
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	1009 nsamples = nc;
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	1010 }
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	1011
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	1012 octave_idx_type nn = 4*npts+15;
1948 d7dec93d4b87 [project @ 1996-02-14 03:45:49 by jwe] jwe parents: 1882 diff changeset	1013
11570 57632dea2446 attempt better backward compatibility for Array constructors John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	1014 Array<Complex> wsave (dim_vector (nn, 1));
1948 d7dec93d4b87 [project @ 1996-02-14 03:45:49 by jwe] jwe parents: 1882 diff changeset	1015 Complex *pwsave = wsave.fortran_vec ();
d7dec93d4b87 [project @ 1996-02-14 03:45:49 by jwe] jwe parents: 1882 diff changeset	1016
3585 d9803711e047 [project @ 2000-02-08 04:35:39 by jwe] jwe parents: 3580 diff changeset	1017 retval = ComplexMatrix (*this);
1948 d7dec93d4b87 [project @ 1996-02-14 03:45:49 by jwe] jwe parents: 1882 diff changeset	1018 Complex *tmp_data = retval.fortran_vec ();
d7dec93d4b87 [project @ 1996-02-14 03:45:49 by jwe] jwe parents: 1882 diff changeset	1019
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7788 diff changeset	1020 F77_FUNC (zffti, ZFFTI) (npts, pwsave);
458 38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	1021
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	1022 for (octave_idx_type j = 0; j < nsamples; j++)
4153 6b96ce9f5743 [project @ 2002-11-06 20:38:49 by jwe] jwe parents: 4130 diff changeset	1023 {
10142 829e69ec3110 make OCTAVE_QUIT a function Jaroslav Hajek <highegg@gmail.com> parents: 9812 diff changeset	1024 octave_quit ();
4153 6b96ce9f5743 [project @ 2002-11-06 20:38:49 by jwe] jwe parents: 4130 diff changeset	1025
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7788 diff changeset	1026 F77_FUNC (zfftf, ZFFTF) (npts, &tmp_data[npts*j], pwsave);
4153 6b96ce9f5743 [project @ 2002-11-06 20:38:49 by jwe] jwe parents: 4130 diff changeset	1027 }
1948 d7dec93d4b87 [project @ 1996-02-14 03:45:49 by jwe] jwe parents: 1882 diff changeset	1028
d7dec93d4b87 [project @ 1996-02-14 03:45:49 by jwe] jwe parents: 1882 diff changeset	1029 return retval;
458 38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	1030 }
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	1031
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	1032 ComplexMatrix
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	1033 Matrix::ifourier (void) const
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	1034 {
1948 d7dec93d4b87 [project @ 1996-02-14 03:45:49 by jwe] jwe parents: 1882 diff changeset	1035 ComplexMatrix retval;
d7dec93d4b87 [project @ 1996-02-14 03:45:49 by jwe] jwe parents: 1882 diff changeset	1036
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	1037 octave_idx_type nr = rows ();
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	1038 octave_idx_type nc = cols ();
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	1039
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	1040 octave_idx_type npts, nsamples;
1948 d7dec93d4b87 [project @ 1996-02-14 03:45:49 by jwe] jwe parents: 1882 diff changeset	1041
458 38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	1042 if (nr == 1 \|\| nc == 1)
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	1043 {
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	1044 npts = nr > nc ? nr : nc;
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	1045 nsamples = 1;
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	1046 }
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	1047 else
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	1048 {
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	1049 npts = nr;
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	1050 nsamples = nc;
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	1051 }
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	1052
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	1053 octave_idx_type nn = 4*npts+15;
1948 d7dec93d4b87 [project @ 1996-02-14 03:45:49 by jwe] jwe parents: 1882 diff changeset	1054
11570 57632dea2446 attempt better backward compatibility for Array constructors John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	1055 Array<Complex> wsave (dim_vector (nn, 1));
1948 d7dec93d4b87 [project @ 1996-02-14 03:45:49 by jwe] jwe parents: 1882 diff changeset	1056 Complex *pwsave = wsave.fortran_vec ();
d7dec93d4b87 [project @ 1996-02-14 03:45:49 by jwe] jwe parents: 1882 diff changeset	1057
3585 d9803711e047 [project @ 2000-02-08 04:35:39 by jwe] jwe parents: 3580 diff changeset	1058 retval = ComplexMatrix (*this);
1948 d7dec93d4b87 [project @ 1996-02-14 03:45:49 by jwe] jwe parents: 1882 diff changeset	1059 Complex *tmp_data = retval.fortran_vec ();
d7dec93d4b87 [project @ 1996-02-14 03:45:49 by jwe] jwe parents: 1882 diff changeset	1060
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7788 diff changeset	1061 F77_FUNC (zffti, ZFFTI) (npts, pwsave);
458 38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	1062
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	1063 for (octave_idx_type j = 0; j < nsamples; j++)
4153 6b96ce9f5743 [project @ 2002-11-06 20:38:49 by jwe] jwe parents: 4130 diff changeset	1064 {
10142 829e69ec3110 make OCTAVE_QUIT a function Jaroslav Hajek <highegg@gmail.com> parents: 9812 diff changeset	1065 octave_quit ();
4153 6b96ce9f5743 [project @ 2002-11-06 20:38:49 by jwe] jwe parents: 4130 diff changeset	1066
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7788 diff changeset	1067 F77_FUNC (zfftb, ZFFTB) (npts, &tmp_data[npts*j], pwsave);
4153 6b96ce9f5743 [project @ 2002-11-06 20:38:49 by jwe] jwe parents: 4130 diff changeset	1068 }
458 38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	1069
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	1070 for (octave_idx_type j = 0; j < npts*nsamples; j++)
3572 8d641545e006 [project @ 2000-02-03 21:39:48 by jwe] jwe parents: 3504 diff changeset	1071 tmp_data[j] = tmp_data[j] / static_cast<double> (npts);
458 38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	1072
1948 d7dec93d4b87 [project @ 1996-02-14 03:45:49 by jwe] jwe parents: 1882 diff changeset	1073 return retval;
458 38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	1074 }
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	1075
677 01da6806197b [project @ 1994-09-08 04:43:13 by jwe] jwe parents: 533 diff changeset	1076 ComplexMatrix
01da6806197b [project @ 1994-09-08 04:43:13 by jwe] jwe parents: 533 diff changeset	1077 Matrix::fourier2d (void) const
01da6806197b [project @ 1994-09-08 04:43:13 by jwe] jwe parents: 533 diff changeset	1078 {
1948 d7dec93d4b87 [project @ 1996-02-14 03:45:49 by jwe] jwe parents: 1882 diff changeset	1079 ComplexMatrix retval;
d7dec93d4b87 [project @ 1996-02-14 03:45:49 by jwe] jwe parents: 1882 diff changeset	1080
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	1081 octave_idx_type nr = rows ();
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	1082 octave_idx_type nc = cols ();
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	1083
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	1084 octave_idx_type npts, nsamples;
1948 d7dec93d4b87 [project @ 1996-02-14 03:45:49 by jwe] jwe parents: 1882 diff changeset	1085
677 01da6806197b [project @ 1994-09-08 04:43:13 by jwe] jwe parents: 533 diff changeset	1086 if (nr == 1 \|\| nc == 1)
01da6806197b [project @ 1994-09-08 04:43:13 by jwe] jwe parents: 533 diff changeset	1087 {
01da6806197b [project @ 1994-09-08 04:43:13 by jwe] jwe parents: 533 diff changeset	1088 npts = nr > nc ? nr : nc;
01da6806197b [project @ 1994-09-08 04:43:13 by jwe] jwe parents: 533 diff changeset	1089 nsamples = 1;
01da6806197b [project @ 1994-09-08 04:43:13 by jwe] jwe parents: 533 diff changeset	1090 }
01da6806197b [project @ 1994-09-08 04:43:13 by jwe] jwe parents: 533 diff changeset	1091 else
01da6806197b [project @ 1994-09-08 04:43:13 by jwe] jwe parents: 533 diff changeset	1092 {
01da6806197b [project @ 1994-09-08 04:43:13 by jwe] jwe parents: 533 diff changeset	1093 npts = nr;
01da6806197b [project @ 1994-09-08 04:43:13 by jwe] jwe parents: 533 diff changeset	1094 nsamples = nc;
01da6806197b [project @ 1994-09-08 04:43:13 by jwe] jwe parents: 533 diff changeset	1095 }
01da6806197b [project @ 1994-09-08 04:43:13 by jwe] jwe parents: 533 diff changeset	1096
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	1097 octave_idx_type nn = 4*npts+15;
1948 d7dec93d4b87 [project @ 1996-02-14 03:45:49 by jwe] jwe parents: 1882 diff changeset	1098
11570 57632dea2446 attempt better backward compatibility for Array constructors John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	1099 Array<Complex> wsave (dim_vector (nn, 1));
1948 d7dec93d4b87 [project @ 1996-02-14 03:45:49 by jwe] jwe parents: 1882 diff changeset	1100 Complex *pwsave = wsave.fortran_vec ();
d7dec93d4b87 [project @ 1996-02-14 03:45:49 by jwe] jwe parents: 1882 diff changeset	1101
3585 d9803711e047 [project @ 2000-02-08 04:35:39 by jwe] jwe parents: 3580 diff changeset	1102 retval = ComplexMatrix (*this);
1948 d7dec93d4b87 [project @ 1996-02-14 03:45:49 by jwe] jwe parents: 1882 diff changeset	1103 Complex *tmp_data = retval.fortran_vec ();
d7dec93d4b87 [project @ 1996-02-14 03:45:49 by jwe] jwe parents: 1882 diff changeset	1104
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7788 diff changeset	1105 F77_FUNC (zffti, ZFFTI) (npts, pwsave);
677 01da6806197b [project @ 1994-09-08 04:43:13 by jwe] jwe parents: 533 diff changeset	1106
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	1107 for (octave_idx_type j = 0; j < nsamples; j++)
4153 6b96ce9f5743 [project @ 2002-11-06 20:38:49 by jwe] jwe parents: 4130 diff changeset	1108 {
10142 829e69ec3110 make OCTAVE_QUIT a function Jaroslav Hajek <highegg@gmail.com> parents: 9812 diff changeset	1109 octave_quit ();
4153 6b96ce9f5743 [project @ 2002-11-06 20:38:49 by jwe] jwe parents: 4130 diff changeset	1110
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7788 diff changeset	1111 F77_FUNC (zfftf, ZFFTF) (npts, &tmp_data[npts*j], pwsave);
4153 6b96ce9f5743 [project @ 2002-11-06 20:38:49 by jwe] jwe parents: 4130 diff changeset	1112 }
677 01da6806197b [project @ 1994-09-08 04:43:13 by jwe] jwe parents: 533 diff changeset	1113
01da6806197b [project @ 1994-09-08 04:43:13 by jwe] jwe parents: 533 diff changeset	1114 npts = nc;
01da6806197b [project @ 1994-09-08 04:43:13 by jwe] jwe parents: 533 diff changeset	1115 nsamples = nr;
01da6806197b [project @ 1994-09-08 04:43:13 by jwe] jwe parents: 533 diff changeset	1116 nn = 4*npts+15;
1948 d7dec93d4b87 [project @ 1996-02-14 03:45:49 by jwe] jwe parents: 1882 diff changeset	1117
11574 a83bad07f7e3 attempt better backward compatibility for Array resize functions John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	1118 wsave.resize (dim_vector (nn, 1));
1948 d7dec93d4b87 [project @ 1996-02-14 03:45:49 by jwe] jwe parents: 1882 diff changeset	1119 pwsave = wsave.fortran_vec ();
d7dec93d4b87 [project @ 1996-02-14 03:45:49 by jwe] jwe parents: 1882 diff changeset	1120
11570 57632dea2446 attempt better backward compatibility for Array constructors John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	1121 Array<Complex> tmp (dim_vector (npts, 1));
4773 ccfbd6047a54 [project @ 2004-02-16 19:02:32 by jwe] jwe parents: 4669 diff changeset	1122 Complex *prow = tmp.fortran_vec ();
1948 d7dec93d4b87 [project @ 1996-02-14 03:45:49 by jwe] jwe parents: 1882 diff changeset	1123
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7788 diff changeset	1124 F77_FUNC (zffti, ZFFTI) (npts, pwsave);
677 01da6806197b [project @ 1994-09-08 04:43:13 by jwe] jwe parents: 533 diff changeset	1125
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	1126 for (octave_idx_type j = 0; j < nsamples; j++)
677 01da6806197b [project @ 1994-09-08 04:43:13 by jwe] jwe parents: 533 diff changeset	1127 {
10142 829e69ec3110 make OCTAVE_QUIT a function Jaroslav Hajek <highegg@gmail.com> parents: 9812 diff changeset	1128 octave_quit ();
4153 6b96ce9f5743 [project @ 2002-11-06 20:38:49 by jwe] jwe parents: 4130 diff changeset	1129
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	1130 for (octave_idx_type i = 0; i < npts; i++)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1131 prow[i] = tmp_data[i*nr + j];
1948 d7dec93d4b87 [project @ 1996-02-14 03:45:49 by jwe] jwe parents: 1882 diff changeset	1132
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7788 diff changeset	1133 F77_FUNC (zfftf, ZFFTF) (npts, prow, pwsave);
677 01da6806197b [project @ 1994-09-08 04:43:13 by jwe] jwe parents: 533 diff changeset	1134
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	1135 for (octave_idx_type i = 0; i < npts; i++)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1136 tmp_data[i*nr + j] = prow[i];
677 01da6806197b [project @ 1994-09-08 04:43:13 by jwe] jwe parents: 533 diff changeset	1137 }
01da6806197b [project @ 1994-09-08 04:43:13 by jwe] jwe parents: 533 diff changeset	1138
1948 d7dec93d4b87 [project @ 1996-02-14 03:45:49 by jwe] jwe parents: 1882 diff changeset	1139 return retval;
677 01da6806197b [project @ 1994-09-08 04:43:13 by jwe] jwe parents: 533 diff changeset	1140 }
01da6806197b [project @ 1994-09-08 04:43:13 by jwe] jwe parents: 533 diff changeset	1141
01da6806197b [project @ 1994-09-08 04:43:13 by jwe] jwe parents: 533 diff changeset	1142 ComplexMatrix
01da6806197b [project @ 1994-09-08 04:43:13 by jwe] jwe parents: 533 diff changeset	1143 Matrix::ifourier2d (void) const
01da6806197b [project @ 1994-09-08 04:43:13 by jwe] jwe parents: 533 diff changeset	1144 {
1948 d7dec93d4b87 [project @ 1996-02-14 03:45:49 by jwe] jwe parents: 1882 diff changeset	1145 ComplexMatrix retval;
d7dec93d4b87 [project @ 1996-02-14 03:45:49 by jwe] jwe parents: 1882 diff changeset	1146
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	1147 octave_idx_type nr = rows ();
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	1148 octave_idx_type nc = cols ();
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	1149
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	1150 octave_idx_type npts, nsamples;
1948 d7dec93d4b87 [project @ 1996-02-14 03:45:49 by jwe] jwe parents: 1882 diff changeset	1151
677 01da6806197b [project @ 1994-09-08 04:43:13 by jwe] jwe parents: 533 diff changeset	1152 if (nr == 1 \|\| nc == 1)
01da6806197b [project @ 1994-09-08 04:43:13 by jwe] jwe parents: 533 diff changeset	1153 {
01da6806197b [project @ 1994-09-08 04:43:13 by jwe] jwe parents: 533 diff changeset	1154 npts = nr > nc ? nr : nc;
01da6806197b [project @ 1994-09-08 04:43:13 by jwe] jwe parents: 533 diff changeset	1155 nsamples = 1;
01da6806197b [project @ 1994-09-08 04:43:13 by jwe] jwe parents: 533 diff changeset	1156 }
01da6806197b [project @ 1994-09-08 04:43:13 by jwe] jwe parents: 533 diff changeset	1157 else
01da6806197b [project @ 1994-09-08 04:43:13 by jwe] jwe parents: 533 diff changeset	1158 {
01da6806197b [project @ 1994-09-08 04:43:13 by jwe] jwe parents: 533 diff changeset	1159 npts = nr;
01da6806197b [project @ 1994-09-08 04:43:13 by jwe] jwe parents: 533 diff changeset	1160 nsamples = nc;
01da6806197b [project @ 1994-09-08 04:43:13 by jwe] jwe parents: 533 diff changeset	1161 }
01da6806197b [project @ 1994-09-08 04:43:13 by jwe] jwe parents: 533 diff changeset	1162
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	1163 octave_idx_type nn = 4*npts+15;
1948 d7dec93d4b87 [project @ 1996-02-14 03:45:49 by jwe] jwe parents: 1882 diff changeset	1164
11570 57632dea2446 attempt better backward compatibility for Array constructors John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	1165 Array<Complex> wsave (dim_vector (nn, 1));
1948 d7dec93d4b87 [project @ 1996-02-14 03:45:49 by jwe] jwe parents: 1882 diff changeset	1166 Complex *pwsave = wsave.fortran_vec ();
d7dec93d4b87 [project @ 1996-02-14 03:45:49 by jwe] jwe parents: 1882 diff changeset	1167
3585 d9803711e047 [project @ 2000-02-08 04:35:39 by jwe] jwe parents: 3580 diff changeset	1168 retval = ComplexMatrix (*this);
1948 d7dec93d4b87 [project @ 1996-02-14 03:45:49 by jwe] jwe parents: 1882 diff changeset	1169 Complex *tmp_data = retval.fortran_vec ();
d7dec93d4b87 [project @ 1996-02-14 03:45:49 by jwe] jwe parents: 1882 diff changeset	1170
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7788 diff changeset	1171 F77_FUNC (zffti, ZFFTI) (npts, pwsave);
677 01da6806197b [project @ 1994-09-08 04:43:13 by jwe] jwe parents: 533 diff changeset	1172
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	1173 for (octave_idx_type j = 0; j < nsamples; j++)
4153 6b96ce9f5743 [project @ 2002-11-06 20:38:49 by jwe] jwe parents: 4130 diff changeset	1174 {
10142 829e69ec3110 make OCTAVE_QUIT a function Jaroslav Hajek <highegg@gmail.com> parents: 9812 diff changeset	1175 octave_quit ();
4153 6b96ce9f5743 [project @ 2002-11-06 20:38:49 by jwe] jwe parents: 4130 diff changeset	1176
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7788 diff changeset	1177 F77_FUNC (zfftb, ZFFTB) (npts, &tmp_data[npts*j], pwsave);
4153 6b96ce9f5743 [project @ 2002-11-06 20:38:49 by jwe] jwe parents: 4130 diff changeset	1178 }
677 01da6806197b [project @ 1994-09-08 04:43:13 by jwe] jwe parents: 533 diff changeset	1179
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	1180 for (octave_idx_type j = 0; j < npts*nsamples; j++)
3572 8d641545e006 [project @ 2000-02-03 21:39:48 by jwe] jwe parents: 3504 diff changeset	1181 tmp_data[j] = tmp_data[j] / static_cast<double> (npts);
677 01da6806197b [project @ 1994-09-08 04:43:13 by jwe] jwe parents: 533 diff changeset	1182
01da6806197b [project @ 1994-09-08 04:43:13 by jwe] jwe parents: 533 diff changeset	1183 npts = nc;
01da6806197b [project @ 1994-09-08 04:43:13 by jwe] jwe parents: 533 diff changeset	1184 nsamples = nr;
01da6806197b [project @ 1994-09-08 04:43:13 by jwe] jwe parents: 533 diff changeset	1185 nn = 4*npts+15;
1948 d7dec93d4b87 [project @ 1996-02-14 03:45:49 by jwe] jwe parents: 1882 diff changeset	1186
11574 a83bad07f7e3 attempt better backward compatibility for Array resize functions John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	1187 wsave.resize (dim_vector (nn, 1));
1948 d7dec93d4b87 [project @ 1996-02-14 03:45:49 by jwe] jwe parents: 1882 diff changeset	1188 pwsave = wsave.fortran_vec ();
d7dec93d4b87 [project @ 1996-02-14 03:45:49 by jwe] jwe parents: 1882 diff changeset	1189
11570 57632dea2446 attempt better backward compatibility for Array constructors John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	1190 Array<Complex> tmp (dim_vector (npts, 1));
4773 ccfbd6047a54 [project @ 2004-02-16 19:02:32 by jwe] jwe parents: 4669 diff changeset	1191 Complex *prow = tmp.fortran_vec ();
1948 d7dec93d4b87 [project @ 1996-02-14 03:45:49 by jwe] jwe parents: 1882 diff changeset	1192
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7788 diff changeset	1193 F77_FUNC (zffti, ZFFTI) (npts, pwsave);
677 01da6806197b [project @ 1994-09-08 04:43:13 by jwe] jwe parents: 533 diff changeset	1194
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	1195 for (octave_idx_type j = 0; j < nsamples; j++)
677 01da6806197b [project @ 1994-09-08 04:43:13 by jwe] jwe parents: 533 diff changeset	1196 {
10142 829e69ec3110 make OCTAVE_QUIT a function Jaroslav Hajek <highegg@gmail.com> parents: 9812 diff changeset	1197 octave_quit ();
4153 6b96ce9f5743 [project @ 2002-11-06 20:38:49 by jwe] jwe parents: 4130 diff changeset	1198
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	1199 for (octave_idx_type i = 0; i < npts; i++)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1200 prow[i] = tmp_data[i*nr + j];
1948 d7dec93d4b87 [project @ 1996-02-14 03:45:49 by jwe] jwe parents: 1882 diff changeset	1201
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7788 diff changeset	1202 F77_FUNC (zfftb, ZFFTB) (npts, prow, pwsave);
677 01da6806197b [project @ 1994-09-08 04:43:13 by jwe] jwe parents: 533 diff changeset	1203
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	1204 for (octave_idx_type i = 0; i < npts; i++)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1205 tmp_data[i*nr + j] = prow[i] / static_cast<double> (npts);
677 01da6806197b [project @ 1994-09-08 04:43:13 by jwe] jwe parents: 533 diff changeset	1206 }
01da6806197b [project @ 1994-09-08 04:43:13 by jwe] jwe parents: 533 diff changeset	1207
1948 d7dec93d4b87 [project @ 1996-02-14 03:45:49 by jwe] jwe parents: 1882 diff changeset	1208 return retval;
677 01da6806197b [project @ 1994-09-08 04:43:13 by jwe] jwe parents: 533 diff changeset	1209 }
01da6806197b [project @ 1994-09-08 04:43:13 by jwe] jwe parents: 533 diff changeset	1210
3827 ba548facf43b [project @ 2001-05-02 06:15:06 by jwe] jwe parents: 3769 diff changeset	1211 #endif
ba548facf43b [project @ 2001-05-02 06:15:06 by jwe] jwe parents: 3769 diff changeset	1212
458 38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	1213 DET
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	1214 Matrix::determinant (void) const
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	1215 {
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	1216 octave_idx_type info;
7788 45f5faba05a2 Add the rcond function David Bateman <dbateman@free.fr> parents: 7620 diff changeset	1217 double rcon;
45f5faba05a2 Add the rcond function David Bateman <dbateman@free.fr> parents: 7620 diff changeset	1218 return determinant (info, rcon, 0);
458 38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	1219 }
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	1220
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	1221 DET
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	1222 Matrix::determinant (octave_idx_type& info) const
458 38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	1223 {
7788 45f5faba05a2 Add the rcond function David Bateman <dbateman@free.fr> parents: 7620 diff changeset	1224 double rcon;
45f5faba05a2 Add the rcond function David Bateman <dbateman@free.fr> parents: 7620 diff changeset	1225 return determinant (info, rcon, 0);
458 38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	1226 }
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	1227
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	1228 DET
7788 45f5faba05a2 Add the rcond function David Bateman <dbateman@free.fr> parents: 7620 diff changeset	1229 Matrix::determinant (octave_idx_type& info, double& rcon, int calc_cond) const
458 38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	1230 {
8336 9813c07ca946 make det take advantage of matrix type Jaroslav Hajek <highegg@gmail.com> parents: 8335 diff changeset	1231 MatrixType mattype (*this);
9813c07ca946 make det take advantage of matrix type Jaroslav Hajek <highegg@gmail.com> parents: 8335 diff changeset	1232 return determinant (mattype, info, rcon, calc_cond);
9813c07ca946 make det take advantage of matrix type Jaroslav Hajek <highegg@gmail.com> parents: 8335 diff changeset	1233 }
9813c07ca946 make det take advantage of matrix type Jaroslav Hajek <highegg@gmail.com> parents: 8335 diff changeset	1234
9813c07ca946 make det take advantage of matrix type Jaroslav Hajek <highegg@gmail.com> parents: 8335 diff changeset	1235 DET
9813c07ca946 make det take advantage of matrix type Jaroslav Hajek <highegg@gmail.com> parents: 8335 diff changeset	1236 Matrix::determinant (MatrixType& mattype,
9813c07ca946 make det take advantage of matrix type Jaroslav Hajek <highegg@gmail.com> parents: 8335 diff changeset	1237 octave_idx_type& info, double& rcon, int calc_cond) const
9813c07ca946 make det take advantage of matrix type Jaroslav Hajek <highegg@gmail.com> parents: 8335 diff changeset	1238 {
9813c07ca946 make det take advantage of matrix type Jaroslav Hajek <highegg@gmail.com> parents: 8335 diff changeset	1239 DET retval (1.0);
458 38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	1240
13828 f1b023fd098d always initialize info and rcon in Matrix determinant methods John W. Eaton <jwe@octave.org> parents: 13756 diff changeset	1241 info = 0;
f1b023fd098d always initialize info and rcon in Matrix determinant methods John W. Eaton <jwe@octave.org> parents: 13756 diff changeset	1242 rcon = 0.0;
f1b023fd098d always initialize info and rcon in Matrix determinant methods John W. Eaton <jwe@octave.org> parents: 13756 diff changeset	1243
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	1244 octave_idx_type nr = rows ();
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	1245 octave_idx_type nc = cols ();
458 38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	1246
8336 9813c07ca946 make det take advantage of matrix type Jaroslav Hajek <highegg@gmail.com> parents: 8335 diff changeset	1247 if (nr != nc)
9813c07ca946 make det take advantage of matrix type Jaroslav Hajek <highegg@gmail.com> parents: 8335 diff changeset	1248 (*current_liboctave_error_handler) ("matrix must be square");
458 38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	1249 else
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	1250 {
8806 c7864bb74914 avoid some GCC warnings John W. Eaton <jwe@octave.org> parents: 8801 diff changeset	1251 volatile int typ = mattype.type ();
8336 9813c07ca946 make det take advantage of matrix type Jaroslav Hajek <highegg@gmail.com> parents: 8335 diff changeset	1252
10213 f7ba6cfe7fb7 fix det() after singular matrix is flagged Jaroslav Hajek <highegg@gmail.com> parents: 10158 diff changeset	1253 // Even though the matrix is marked as singular (Rectangular), we may
f7ba6cfe7fb7 fix det() after singular matrix is flagged Jaroslav Hajek <highegg@gmail.com> parents: 10158 diff changeset	1254 // still get a useful number from the LU factorization, because it always
f7ba6cfe7fb7 fix det() after singular matrix is flagged Jaroslav Hajek <highegg@gmail.com> parents: 10158 diff changeset	1255 // completes.
f7ba6cfe7fb7 fix det() after singular matrix is flagged Jaroslav Hajek <highegg@gmail.com> parents: 10158 diff changeset	1256
8337 e02242c54c49 reuse matrix type detected in det Jaroslav Hajek <highegg@gmail.com> parents: 8336 diff changeset	1257 if (typ == MatrixType::Unknown)
e02242c54c49 reuse matrix type detected in det Jaroslav Hajek <highegg@gmail.com> parents: 8336 diff changeset	1258 typ = mattype.type (*this);
10213 f7ba6cfe7fb7 fix det() after singular matrix is flagged Jaroslav Hajek <highegg@gmail.com> parents: 10158 diff changeset	1259 else if (typ == MatrixType::Rectangular)
f7ba6cfe7fb7 fix det() after singular matrix is flagged Jaroslav Hajek <highegg@gmail.com> parents: 10158 diff changeset	1260 typ = MatrixType::Full;
8337 e02242c54c49 reuse matrix type detected in det Jaroslav Hajek <highegg@gmail.com> parents: 8336 diff changeset	1261
8336 9813c07ca946 make det take advantage of matrix type Jaroslav Hajek <highegg@gmail.com> parents: 8335 diff changeset	1262 if (typ == MatrixType::Lower \|\| typ == MatrixType::Upper)
9813c07ca946 make det take advantage of matrix type Jaroslav Hajek <highegg@gmail.com> parents: 8335 diff changeset	1263 {
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11574 diff changeset	1264 for (octave_idx_type i = 0; i < nc; i++)
8336 9813c07ca946 make det take advantage of matrix type Jaroslav Hajek <highegg@gmail.com> parents: 8335 diff changeset	1265 retval *= elem (i,i);
9813c07ca946 make det take advantage of matrix type Jaroslav Hajek <highegg@gmail.com> parents: 8335 diff changeset	1266 }
9813c07ca946 make det take advantage of matrix type Jaroslav Hajek <highegg@gmail.com> parents: 8335 diff changeset	1267 else if (typ == MatrixType::Hermitian)
9813c07ca946 make det take advantage of matrix type Jaroslav Hajek <highegg@gmail.com> parents: 8335 diff changeset	1268 {
9813c07ca946 make det take advantage of matrix type Jaroslav Hajek <highegg@gmail.com> parents: 8335 diff changeset	1269 Matrix atmp = *this;
9813c07ca946 make det take advantage of matrix type Jaroslav Hajek <highegg@gmail.com> parents: 8335 diff changeset	1270 double *tmp_data = atmp.fortran_vec ();
9813c07ca946 make det take advantage of matrix type Jaroslav Hajek <highegg@gmail.com> parents: 8335 diff changeset	1271
9813c07ca946 make det take advantage of matrix type Jaroslav Hajek <highegg@gmail.com> parents: 8335 diff changeset	1272 double anorm = 0;
9813c07ca946 make det take advantage of matrix type Jaroslav Hajek <highegg@gmail.com> parents: 8335 diff changeset	1273 if (calc_cond) anorm = xnorm (*this, 1);
9813c07ca946 make det take advantage of matrix type Jaroslav Hajek <highegg@gmail.com> parents: 8335 diff changeset	1274
9813c07ca946 make det take advantage of matrix type Jaroslav Hajek <highegg@gmail.com> parents: 8335 diff changeset	1275
9813c07ca946 make det take advantage of matrix type Jaroslav Hajek <highegg@gmail.com> parents: 8335 diff changeset	1276 char job = 'L';
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11574 diff changeset	1277 F77_XFCN (dpotrf, DPOTRF, (F77_CONST_CHAR_ARG2 (&job, 1), nr,
8336 9813c07ca946 make det take advantage of matrix type Jaroslav Hajek <highegg@gmail.com> parents: 8335 diff changeset	1278 tmp_data, nr, info
9813c07ca946 make det take advantage of matrix type Jaroslav Hajek <highegg@gmail.com> parents: 8335 diff changeset	1279 F77_CHAR_ARG_LEN (1)));
9813c07ca946 make det take advantage of matrix type Jaroslav Hajek <highegg@gmail.com> parents: 8335 diff changeset	1280
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11574 diff changeset	1281 if (info != 0)
8336 9813c07ca946 make det take advantage of matrix type Jaroslav Hajek <highegg@gmail.com> parents: 8335 diff changeset	1282 {
9813c07ca946 make det take advantage of matrix type Jaroslav Hajek <highegg@gmail.com> parents: 8335 diff changeset	1283 rcon = 0.0;
9813c07ca946 make det take advantage of matrix type Jaroslav Hajek <highegg@gmail.com> parents: 8335 diff changeset	1284 mattype.mark_as_unsymmetric ();
9813c07ca946 make det take advantage of matrix type Jaroslav Hajek <highegg@gmail.com> parents: 8335 diff changeset	1285 typ = MatrixType::Full;
9813c07ca946 make det take advantage of matrix type Jaroslav Hajek <highegg@gmail.com> parents: 8335 diff changeset	1286 }
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11574 diff changeset	1287 else
8336 9813c07ca946 make det take advantage of matrix type Jaroslav Hajek <highegg@gmail.com> parents: 8335 diff changeset	1288 {
11570 57632dea2446 attempt better backward compatibility for Array constructors John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	1289 Array<double> z (dim_vector (3 * nc, 1));
8336 9813c07ca946 make det take advantage of matrix type Jaroslav Hajek <highegg@gmail.com> parents: 8335 diff changeset	1290 double *pz = z.fortran_vec ();
11570 57632dea2446 attempt better backward compatibility for Array constructors John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	1291 Array<octave_idx_type> iz (dim_vector (nc, 1));
8336 9813c07ca946 make det take advantage of matrix type Jaroslav Hajek <highegg@gmail.com> parents: 8335 diff changeset	1292 octave_idx_type *piz = iz.fortran_vec ();
9813c07ca946 make det take advantage of matrix type Jaroslav Hajek <highegg@gmail.com> parents: 8335 diff changeset	1293
9813c07ca946 make det take advantage of matrix type Jaroslav Hajek <highegg@gmail.com> parents: 8335 diff changeset	1294 F77_XFCN (dpocon, DPOCON, (F77_CONST_CHAR_ARG2 (&job, 1),
9813c07ca946 make det take advantage of matrix type Jaroslav Hajek <highegg@gmail.com> parents: 8335 diff changeset	1295 nr, tmp_data, nr, anorm,
9813c07ca946 make det take advantage of matrix type Jaroslav Hajek <highegg@gmail.com> parents: 8335 diff changeset	1296 rcon, pz, piz, info
9813c07ca946 make det take advantage of matrix type Jaroslav Hajek <highegg@gmail.com> parents: 8335 diff changeset	1297 F77_CHAR_ARG_LEN (1)));
9813c07ca946 make det take advantage of matrix type Jaroslav Hajek <highegg@gmail.com> parents: 8335 diff changeset	1298
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11574 diff changeset	1299 if (info != 0)
8336 9813c07ca946 make det take advantage of matrix type Jaroslav Hajek <highegg@gmail.com> parents: 8335 diff changeset	1300 rcon = 0.0;
9813c07ca946 make det take advantage of matrix type Jaroslav Hajek <highegg@gmail.com> parents: 8335 diff changeset	1301
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11574 diff changeset	1302 for (octave_idx_type i = 0; i < nc; i++)
8337 e02242c54c49 reuse matrix type detected in det Jaroslav Hajek <highegg@gmail.com> parents: 8336 diff changeset	1303 retval *= atmp (i,i);
8336 9813c07ca946 make det take advantage of matrix type Jaroslav Hajek <highegg@gmail.com> parents: 8335 diff changeset	1304
9813c07ca946 make det take advantage of matrix type Jaroslav Hajek <highegg@gmail.com> parents: 8335 diff changeset	1305 retval = retval.square ();
9813c07ca946 make det take advantage of matrix type Jaroslav Hajek <highegg@gmail.com> parents: 8335 diff changeset	1306 }
9813c07ca946 make det take advantage of matrix type Jaroslav Hajek <highegg@gmail.com> parents: 8335 diff changeset	1307 }
9813c07ca946 make det take advantage of matrix type Jaroslav Hajek <highegg@gmail.com> parents: 8335 diff changeset	1308 else if (typ != MatrixType::Full)
9813c07ca946 make det take advantage of matrix type Jaroslav Hajek <highegg@gmail.com> parents: 8335 diff changeset	1309 (*current_liboctave_error_handler) ("det: invalid dense matrix type");
9813c07ca946 make det take advantage of matrix type Jaroslav Hajek <highegg@gmail.com> parents: 8335 diff changeset	1310
9813c07ca946 make det take advantage of matrix type Jaroslav Hajek <highegg@gmail.com> parents: 8335 diff changeset	1311 if (typ == MatrixType::Full)
9813c07ca946 make det take advantage of matrix type Jaroslav Hajek <highegg@gmail.com> parents: 8335 diff changeset	1312 {
11570 57632dea2446 attempt better backward compatibility for Array constructors John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	1313 Array<octave_idx_type> ipvt (dim_vector (nr, 1));
8336 9813c07ca946 make det take advantage of matrix type Jaroslav Hajek <highegg@gmail.com> parents: 8335 diff changeset	1314 octave_idx_type *pipvt = ipvt.fortran_vec ();
9813c07ca946 make det take advantage of matrix type Jaroslav Hajek <highegg@gmail.com> parents: 8335 diff changeset	1315
9813c07ca946 make det take advantage of matrix type Jaroslav Hajek <highegg@gmail.com> parents: 8335 diff changeset	1316 Matrix atmp = *this;
9813c07ca946 make det take advantage of matrix type Jaroslav Hajek <highegg@gmail.com> parents: 8335 diff changeset	1317 double *tmp_data = atmp.fortran_vec ();
9813c07ca946 make det take advantage of matrix type Jaroslav Hajek <highegg@gmail.com> parents: 8335 diff changeset	1318
9813c07ca946 make det take advantage of matrix type Jaroslav Hajek <highegg@gmail.com> parents: 8335 diff changeset	1319 info = 0;
9813c07ca946 make det take advantage of matrix type Jaroslav Hajek <highegg@gmail.com> parents: 8335 diff changeset	1320
9813c07ca946 make det take advantage of matrix type Jaroslav Hajek <highegg@gmail.com> parents: 8335 diff changeset	1321 // Calculate the norm of the matrix, for later use.
9813c07ca946 make det take advantage of matrix type Jaroslav Hajek <highegg@gmail.com> parents: 8335 diff changeset	1322 double anorm = 0;
9813c07ca946 make det take advantage of matrix type Jaroslav Hajek <highegg@gmail.com> parents: 8335 diff changeset	1323 if (calc_cond) anorm = xnorm (*this, 1);
9813c07ca946 make det take advantage of matrix type Jaroslav Hajek <highegg@gmail.com> parents: 8335 diff changeset	1324
9813c07ca946 make det take advantage of matrix type Jaroslav Hajek <highegg@gmail.com> parents: 8335 diff changeset	1325 F77_XFCN (dgetrf, DGETRF, (nr, nr, tmp_data, nr, pipvt, info));
9813c07ca946 make det take advantage of matrix type Jaroslav Hajek <highegg@gmail.com> parents: 8335 diff changeset	1326
9813c07ca946 make det take advantage of matrix type Jaroslav Hajek <highegg@gmail.com> parents: 8335 diff changeset	1327 // Throw-away extra info LAPACK gives so as to not change output.
9813c07ca946 make det take advantage of matrix type Jaroslav Hajek <highegg@gmail.com> parents: 8335 diff changeset	1328 rcon = 0.0;
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11574 diff changeset	1329 if (info != 0)
8336 9813c07ca946 make det take advantage of matrix type Jaroslav Hajek <highegg@gmail.com> parents: 8335 diff changeset	1330 {
9813c07ca946 make det take advantage of matrix type Jaroslav Hajek <highegg@gmail.com> parents: 8335 diff changeset	1331 info = -1;
9813c07ca946 make det take advantage of matrix type Jaroslav Hajek <highegg@gmail.com> parents: 8335 diff changeset	1332 retval = DET ();
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11574 diff changeset	1333 }
12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11574 diff changeset	1334 else
8336 9813c07ca946 make det take advantage of matrix type Jaroslav Hajek <highegg@gmail.com> parents: 8335 diff changeset	1335 {
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11574 diff changeset	1336 if (calc_cond)
8336 9813c07ca946 make det take advantage of matrix type Jaroslav Hajek <highegg@gmail.com> parents: 8335 diff changeset	1337 {
9813c07ca946 make det take advantage of matrix type Jaroslav Hajek <highegg@gmail.com> parents: 8335 diff changeset	1338 // Now calc the condition number for non-singular matrix.
9813c07ca946 make det take advantage of matrix type Jaroslav Hajek <highegg@gmail.com> parents: 8335 diff changeset	1339 char job = '1';
11570 57632dea2446 attempt better backward compatibility for Array constructors John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	1340 Array<double> z (dim_vector (4 * nc, 1));
8336 9813c07ca946 make det take advantage of matrix type Jaroslav Hajek <highegg@gmail.com> parents: 8335 diff changeset	1341 double *pz = z.fortran_vec ();
11570 57632dea2446 attempt better backward compatibility for Array constructors John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	1342 Array<octave_idx_type> iz (dim_vector (nc, 1));
8336 9813c07ca946 make det take advantage of matrix type Jaroslav Hajek <highegg@gmail.com> parents: 8335 diff changeset	1343 octave_idx_type *piz = iz.fortran_vec ();
9813c07ca946 make det take advantage of matrix type Jaroslav Hajek <highegg@gmail.com> parents: 8335 diff changeset	1344
9813c07ca946 make det take advantage of matrix type Jaroslav Hajek <highegg@gmail.com> parents: 8335 diff changeset	1345 F77_XFCN (dgecon, DGECON, (F77_CONST_CHAR_ARG2 (&job, 1),
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11574 diff changeset	1346 nc, tmp_data, nr, anorm,
8336 9813c07ca946 make det take advantage of matrix type Jaroslav Hajek <highegg@gmail.com> parents: 8335 diff changeset	1347 rcon, pz, piz, info
9813c07ca946 make det take advantage of matrix type Jaroslav Hajek <highegg@gmail.com> parents: 8335 diff changeset	1348 F77_CHAR_ARG_LEN (1)));
8335 64cf956a109c templatize & fix DET Jaroslav Hajek <highegg@gmail.com> parents: 8211 diff changeset	1349 }
8336 9813c07ca946 make det take advantage of matrix type Jaroslav Hajek <highegg@gmail.com> parents: 8335 diff changeset	1350
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11574 diff changeset	1351 if (info != 0)
8336 9813c07ca946 make det take advantage of matrix type Jaroslav Hajek <highegg@gmail.com> parents: 8335 diff changeset	1352 {
9813c07ca946 make det take advantage of matrix type Jaroslav Hajek <highegg@gmail.com> parents: 8335 diff changeset	1353 info = -1;
9813c07ca946 make det take advantage of matrix type Jaroslav Hajek <highegg@gmail.com> parents: 8335 diff changeset	1354 retval = DET ();
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11574 diff changeset	1355 }
12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11574 diff changeset	1356 else
8336 9813c07ca946 make det take advantage of matrix type Jaroslav Hajek <highegg@gmail.com> parents: 8335 diff changeset	1357 {
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11574 diff changeset	1358 for (octave_idx_type i = 0; i < nc; i++)
8336 9813c07ca946 make det take advantage of matrix type Jaroslav Hajek <highegg@gmail.com> parents: 8335 diff changeset	1359 {
9813c07ca946 make det take advantage of matrix type Jaroslav Hajek <highegg@gmail.com> parents: 8335 diff changeset	1360 double c = atmp(i,i);
9813c07ca946 make det take advantage of matrix type Jaroslav Hajek <highegg@gmail.com> parents: 8335 diff changeset	1361 retval *= (ipvt(i) != (i+1)) ? -c : c;
9813c07ca946 make det take advantage of matrix type Jaroslav Hajek <highegg@gmail.com> parents: 8335 diff changeset	1362 }
9813c07ca946 make det take advantage of matrix type Jaroslav Hajek <highegg@gmail.com> parents: 8335 diff changeset	1363 }
9813c07ca946 make det take advantage of matrix type Jaroslav Hajek <highegg@gmail.com> parents: 8335 diff changeset	1364 }
9813c07ca946 make det take advantage of matrix type Jaroslav Hajek <highegg@gmail.com> parents: 8335 diff changeset	1365 }
458 38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	1366 }
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	1367
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	1368 return retval;
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	1369 }
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	1370
7788 45f5faba05a2 Add the rcond function David Bateman <dbateman@free.fr> parents: 7620 diff changeset	1371 double
45f5faba05a2 Add the rcond function David Bateman <dbateman@free.fr> parents: 7620 diff changeset	1372 Matrix::rcond (void) const
45f5faba05a2 Add the rcond function David Bateman <dbateman@free.fr> parents: 7620 diff changeset	1373 {
45f5faba05a2 Add the rcond function David Bateman <dbateman@free.fr> parents: 7620 diff changeset	1374 MatrixType mattype (*this);
45f5faba05a2 Add the rcond function David Bateman <dbateman@free.fr> parents: 7620 diff changeset	1375 return rcond (mattype);
45f5faba05a2 Add the rcond function David Bateman <dbateman@free.fr> parents: 7620 diff changeset	1376 }
45f5faba05a2 Add the rcond function David Bateman <dbateman@free.fr> parents: 7620 diff changeset	1377
45f5faba05a2 Add the rcond function David Bateman <dbateman@free.fr> parents: 7620 diff changeset	1378 double
45f5faba05a2 Add the rcond function David Bateman <dbateman@free.fr> parents: 7620 diff changeset	1379 Matrix::rcond (MatrixType &mattype) const
45f5faba05a2 Add the rcond function David Bateman <dbateman@free.fr> parents: 7620 diff changeset	1380 {
18780 cb37b17b6091 Initialize rcond value to octave_NaN. PrasannaKumar Muralidharan <prasannatsmkumar@gmail.com> parents: 18084 diff changeset	1381 double rcon = octave_NaN;
7788 45f5faba05a2 Add the rcond function David Bateman <dbateman@free.fr> parents: 7620 diff changeset	1382 octave_idx_type nr = rows ();
45f5faba05a2 Add the rcond function David Bateman <dbateman@free.fr> parents: 7620 diff changeset	1383 octave_idx_type nc = cols ();
45f5faba05a2 Add the rcond function David Bateman <dbateman@free.fr> parents: 7620 diff changeset	1384
45f5faba05a2 Add the rcond function David Bateman <dbateman@free.fr> parents: 7620 diff changeset	1385 if (nr != nc)
45f5faba05a2 Add the rcond function David Bateman <dbateman@free.fr> parents: 7620 diff changeset	1386 (*current_liboctave_error_handler) ("matrix must be square");
45f5faba05a2 Add the rcond function David Bateman <dbateman@free.fr> parents: 7620 diff changeset	1387 else if (nr == 0 \|\| nc == 0)
45f5faba05a2 Add the rcond function David Bateman <dbateman@free.fr> parents: 7620 diff changeset	1388 rcon = octave_Inf;
45f5faba05a2 Add the rcond function David Bateman <dbateman@free.fr> parents: 7620 diff changeset	1389 else
45f5faba05a2 Add the rcond function David Bateman <dbateman@free.fr> parents: 7620 diff changeset	1390 {
16300 23c5f90f92cd eliminate some variable might be clobbered by 'longjmp' or 'vfork' warnings John W. Eaton <jwe@octave.org> parents: 15448 diff changeset	1391 volatile int typ = mattype.type ();
7788 45f5faba05a2 Add the rcond function David Bateman <dbateman@free.fr> parents: 7620 diff changeset	1392
45f5faba05a2 Add the rcond function David Bateman <dbateman@free.fr> parents: 7620 diff changeset	1393 if (typ == MatrixType::Unknown)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1394 typ = mattype.type (*this);
7788 45f5faba05a2 Add the rcond function David Bateman <dbateman@free.fr> parents: 7620 diff changeset	1395
45f5faba05a2 Add the rcond function David Bateman <dbateman@free.fr> parents: 7620 diff changeset	1396 // Only calculate the condition number for LU/Cholesky
45f5faba05a2 Add the rcond function David Bateman <dbateman@free.fr> parents: 7620 diff changeset	1397 if (typ == MatrixType::Upper)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1398 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1399 const double *tmp_data = fortran_vec ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1400 octave_idx_type info = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1401 char norm = '1';
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1402 char uplo = 'U';
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1403 char dia = 'N';
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1404
11570 57632dea2446 attempt better backward compatibility for Array constructors John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	1405 Array<double> z (dim_vector (3 * nc, 1));
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1406 double *pz = z.fortran_vec ();
11570 57632dea2446 attempt better backward compatibility for Array constructors John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	1407 Array<octave_idx_type> iz (dim_vector (nc, 1));
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1408 octave_idx_type *piz = iz.fortran_vec ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1409
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11574 diff changeset	1410 F77_XFCN (dtrcon, DTRCON, (F77_CONST_CHAR_ARG2 (&norm, 1),
12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11574 diff changeset	1411 F77_CONST_CHAR_ARG2 (&uplo, 1),
12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11574 diff changeset	1412 F77_CONST_CHAR_ARG2 (&dia, 1),
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1413 nr, tmp_data, nr, rcon,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1414 pz, piz, info
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1415 F77_CHAR_ARG_LEN (1)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1416 F77_CHAR_ARG_LEN (1)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1417 F77_CHAR_ARG_LEN (1)));
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1418
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11574 diff changeset	1419 if (info != 0)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1420 rcon = 0.0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1421 }
7788 45f5faba05a2 Add the rcond function David Bateman <dbateman@free.fr> parents: 7620 diff changeset	1422 else if (typ == MatrixType::Permuted_Upper)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1423 (*current_liboctave_error_handler)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1424 ("permuted triangular matrix not implemented");
7788 45f5faba05a2 Add the rcond function David Bateman <dbateman@free.fr> parents: 7620 diff changeset	1425 else if (typ == MatrixType::Lower)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1426 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1427 const double *tmp_data = fortran_vec ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1428 octave_idx_type info = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1429 char norm = '1';
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1430 char uplo = 'L';
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1431 char dia = 'N';
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1432
11570 57632dea2446 attempt better backward compatibility for Array constructors John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	1433 Array<double> z (dim_vector (3 * nc, 1));
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1434 double *pz = z.fortran_vec ();
11570 57632dea2446 attempt better backward compatibility for Array constructors John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	1435 Array<octave_idx_type> iz (dim_vector (nc, 1));
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1436 octave_idx_type *piz = iz.fortran_vec ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1437
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11574 diff changeset	1438 F77_XFCN (dtrcon, DTRCON, (F77_CONST_CHAR_ARG2 (&norm, 1),
12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11574 diff changeset	1439 F77_CONST_CHAR_ARG2 (&uplo, 1),
12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11574 diff changeset	1440 F77_CONST_CHAR_ARG2 (&dia, 1),
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1441 nr, tmp_data, nr, rcon,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1442 pz, piz, info
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1443 F77_CHAR_ARG_LEN (1)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1444 F77_CHAR_ARG_LEN (1)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1445 F77_CHAR_ARG_LEN (1)));
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1446
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11574 diff changeset	1447 if (info != 0)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1448 rcon = 0.0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1449 }
7788 45f5faba05a2 Add the rcond function David Bateman <dbateman@free.fr> parents: 7620 diff changeset	1450 else if (typ == MatrixType::Permuted_Lower)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1451 (*current_liboctave_error_handler)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1452 ("permuted triangular matrix not implemented");
7788 45f5faba05a2 Add the rcond function David Bateman <dbateman@free.fr> parents: 7620 diff changeset	1453 else if (typ == MatrixType::Full \|\| typ == MatrixType::Hermitian)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1454 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1455 double anorm = -1.0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1456
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1457 if (typ == MatrixType::Hermitian)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1458 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1459 octave_idx_type info = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1460 char job = 'L';
15382 197774b411ec rcond: use new copy of data for full factorization if positive definite cholesky factorization fails (bug #37336) John W. Eaton <jwe@octave.org> parents: 14138 diff changeset	1461
197774b411ec rcond: use new copy of data for full factorization if positive definite cholesky factorization fails (bug #37336) John W. Eaton <jwe@octave.org> parents: 14138 diff changeset	1462 Matrix atmp = *this;
197774b411ec rcond: use new copy of data for full factorization if positive definite cholesky factorization fails (bug #37336) John W. Eaton <jwe@octave.org> parents: 14138 diff changeset	1463 double *tmp_data = atmp.fortran_vec ();
197774b411ec rcond: use new copy of data for full factorization if positive definite cholesky factorization fails (bug #37336) John W. Eaton <jwe@octave.org> parents: 14138 diff changeset	1464
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1465 anorm = atmp.abs().sum().
17769 49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	1466 row(static_cast<octave_idx_type>(0)).max();
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1467
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11574 diff changeset	1468 F77_XFCN (dpotrf, DPOTRF, (F77_CONST_CHAR_ARG2 (&job, 1), nr,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1469 tmp_data, nr, info
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1470 F77_CHAR_ARG_LEN (1)));
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1471
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11574 diff changeset	1472 if (info != 0)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1473 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1474 rcon = 0.0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1475 mattype.mark_as_unsymmetric ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1476 typ = MatrixType::Full;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1477 }
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11574 diff changeset	1478 else
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1479 {
11570 57632dea2446 attempt better backward compatibility for Array constructors John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	1480 Array<double> z (dim_vector (3 * nc, 1));
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1481 double *pz = z.fortran_vec ();
11570 57632dea2446 attempt better backward compatibility for Array constructors John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	1482 Array<octave_idx_type> iz (dim_vector (nc, 1));
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1483 octave_idx_type *piz = iz.fortran_vec ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1484
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1485 F77_XFCN (dpocon, DPOCON, (F77_CONST_CHAR_ARG2 (&job, 1),
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1486 nr, tmp_data, nr, anorm,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1487 rcon, pz, piz, info
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1488 F77_CHAR_ARG_LEN (1)));
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1489
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11574 diff changeset	1490 if (info != 0)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1491 rcon = 0.0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1492 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1493 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1494
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1495 if (typ == MatrixType::Full)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1496 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1497 octave_idx_type info = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1498
15382 197774b411ec rcond: use new copy of data for full factorization if positive definite cholesky factorization fails (bug #37336) John W. Eaton <jwe@octave.org> parents: 14138 diff changeset	1499 Matrix atmp = *this;
197774b411ec rcond: use new copy of data for full factorization if positive definite cholesky factorization fails (bug #37336) John W. Eaton <jwe@octave.org> parents: 14138 diff changeset	1500 double *tmp_data = atmp.fortran_vec ();
197774b411ec rcond: use new copy of data for full factorization if positive definite cholesky factorization fails (bug #37336) John W. Eaton <jwe@octave.org> parents: 14138 diff changeset	1501
11570 57632dea2446 attempt better backward compatibility for Array constructors John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	1502 Array<octave_idx_type> ipvt (dim_vector (nr, 1));
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1503 octave_idx_type *pipvt = ipvt.fortran_vec ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1504
15018 3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/. Rik <rik@octave.org> parents: 14846 diff changeset	1505 if (anorm < 0.)
14846 460a3c6d8bf1 maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists. Rik <octave@nomad.inbox5.com> parents: 14557 diff changeset	1506 anorm = atmp.abs ().sum ().
17769 49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	1507 row(static_cast<octave_idx_type>(0)).max ();
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1508
11570 57632dea2446 attempt better backward compatibility for Array constructors John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	1509 Array<double> z (dim_vector (4 * nc, 1));
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1510 double *pz = z.fortran_vec ();
11570 57632dea2446 attempt better backward compatibility for Array constructors John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	1511 Array<octave_idx_type> iz (dim_vector (nc, 1));
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1512 octave_idx_type *piz = iz.fortran_vec ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1513
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1514 F77_XFCN (dgetrf, DGETRF, (nr, nr, tmp_data, nr, pipvt, info));
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1515
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11574 diff changeset	1516 if (info != 0)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1517 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1518 rcon = 0.0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1519 mattype.mark_as_rectangular ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1520 }
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11574 diff changeset	1521 else
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1522 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1523 char job = '1';
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1524 F77_XFCN (dgecon, DGECON, (F77_CONST_CHAR_ARG2 (&job, 1),
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11574 diff changeset	1525 nc, tmp_data, nr, anorm,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1526 rcon, pz, piz, info
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1527 F77_CHAR_ARG_LEN (1)));
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1528
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11574 diff changeset	1529 if (info != 0)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1530 rcon = 0.0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1531 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1532 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1533 }
7788 45f5faba05a2 Add the rcond function David Bateman <dbateman@free.fr> parents: 7620 diff changeset	1534 else
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1535 rcon = 0.0;
7788 45f5faba05a2 Add the rcond function David Bateman <dbateman@free.fr> parents: 7620 diff changeset	1536 }
45f5faba05a2 Add the rcond function David Bateman <dbateman@free.fr> parents: 7620 diff changeset	1537
45f5faba05a2 Add the rcond function David Bateman <dbateman@free.fr> parents: 7620 diff changeset	1538 return rcon;
45f5faba05a2 Add the rcond function David Bateman <dbateman@free.fr> parents: 7620 diff changeset	1539 }
45f5faba05a2 Add the rcond function David Bateman <dbateman@free.fr> parents: 7620 diff changeset	1540
458 38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	1541 Matrix
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5775 diff changeset	1542 Matrix::utsolve (MatrixType &mattype, const Matrix& b, octave_idx_type& info,
17769 49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	1543 double& rcon, solve_singularity_handler sing_handler,
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	1544 bool calc_cond, blas_trans_type transt) const
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5775 diff changeset	1545 {
6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5775 diff changeset	1546 Matrix retval;
6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5775 diff changeset	1547
6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5775 diff changeset	1548 octave_idx_type nr = rows ();
6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5775 diff changeset	1549 octave_idx_type nc = cols ();
6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5775 diff changeset	1550
6924 be176b7e110a [project @ 2007-09-25 19:08:19 by dbateman] dbateman parents: 6840 diff changeset	1551 if (nr != b.rows ())
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5775 diff changeset	1552 (*current_liboctave_error_handler)
6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5775 diff changeset	1553 ("matrix dimension mismatch solution of linear equations");
6924 be176b7e110a [project @ 2007-09-25 19:08:19 by dbateman] dbateman parents: 6840 diff changeset	1554 else if (nr == 0 \|\| nc == 0 \|\| b.cols () == 0)
be176b7e110a [project @ 2007-09-25 19:08:19 by dbateman] dbateman parents: 6840 diff changeset	1555 retval = Matrix (nc, b.cols (), 0.0);
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5775 diff changeset	1556 else
6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5775 diff changeset	1557 {
6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5775 diff changeset	1558 volatile int typ = mattype.type ();
6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5775 diff changeset	1559
6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5775 diff changeset	1560 if (typ == MatrixType::Permuted_Upper \|\|
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1561 typ == MatrixType::Upper)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1562 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1563 octave_idx_type b_nc = b.cols ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1564 rcon = 1.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1565 info = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1566
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1567 if (typ == MatrixType::Permuted_Upper)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1568 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1569 (*current_liboctave_error_handler)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1570 ("permuted triangular matrix not implemented");
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1571 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1572 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1573 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1574 const double *tmp_data = fortran_vec ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1575
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1576 if (calc_cond)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1577 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1578 char norm = '1';
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1579 char uplo = 'U';
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1580 char dia = 'N';
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1581
11570 57632dea2446 attempt better backward compatibility for Array constructors John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	1582 Array<double> z (dim_vector (3 * nc, 1));
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1583 double *pz = z.fortran_vec ();
11570 57632dea2446 attempt better backward compatibility for Array constructors John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	1584 Array<octave_idx_type> iz (dim_vector (nc, 1));
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1585 octave_idx_type *piz = iz.fortran_vec ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1586
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11574 diff changeset	1587 F77_XFCN (dtrcon, DTRCON, (F77_CONST_CHAR_ARG2 (&norm, 1),
12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11574 diff changeset	1588 F77_CONST_CHAR_ARG2 (&uplo, 1),
12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11574 diff changeset	1589 F77_CONST_CHAR_ARG2 (&dia, 1),
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1590 nr, tmp_data, nr, rcon,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1591 pz, piz, info
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1592 F77_CHAR_ARG_LEN (1)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1593 F77_CHAR_ARG_LEN (1)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1594 F77_CHAR_ARG_LEN (1)));
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1595
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11574 diff changeset	1596 if (info != 0)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1597 info = -2;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1598
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1599 volatile double rcond_plus_one = rcon + 1.0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1600
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1601 if (rcond_plus_one == 1.0 \|\| xisnan (rcon))
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1602 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1603 info = -2;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1604
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1605 if (sing_handler)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1606 sing_handler (rcon);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1607 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1608 (*current_liboctave_error_handler)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1609 ("matrix singular to machine precision, rcond = %g",
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1610 rcon);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1611 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1612 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1613
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1614 if (info == 0)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1615 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1616 retval = b;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1617 double *result = retval.fortran_vec ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1618
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1619 char uplo = 'U';
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1620 char trans = get_blas_char (transt);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1621 char dia = 'N';
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1622
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11574 diff changeset	1623 F77_XFCN (dtrtrs, DTRTRS, (F77_CONST_CHAR_ARG2 (&uplo, 1),
12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11574 diff changeset	1624 F77_CONST_CHAR_ARG2 (&trans, 1),
12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11574 diff changeset	1625 F77_CONST_CHAR_ARG2 (&dia, 1),
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1626 nr, b_nc, tmp_data, nr,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1627 result, nr, info
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1628 F77_CHAR_ARG_LEN (1)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1629 F77_CHAR_ARG_LEN (1)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1630 F77_CHAR_ARG_LEN (1)));
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1631 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1632 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1633 }
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5775 diff changeset	1634 else
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1635 (*current_liboctave_error_handler) ("incorrect matrix type");
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5775 diff changeset	1636 }
6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5775 diff changeset	1637
6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5775 diff changeset	1638 return retval;
6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5775 diff changeset	1639 }
6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5775 diff changeset	1640
6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5775 diff changeset	1641 Matrix
6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5775 diff changeset	1642 Matrix::ltsolve (MatrixType &mattype, const Matrix& b, octave_idx_type& info,
17769 49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	1643 double& rcon, solve_singularity_handler sing_handler,
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	1644 bool calc_cond, blas_trans_type transt) const
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5775 diff changeset	1645 {
6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5775 diff changeset	1646 Matrix retval;
6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5775 diff changeset	1647
6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5775 diff changeset	1648 octave_idx_type nr = rows ();
6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5775 diff changeset	1649 octave_idx_type nc = cols ();
6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5775 diff changeset	1650
6924 be176b7e110a [project @ 2007-09-25 19:08:19 by dbateman] dbateman parents: 6840 diff changeset	1651 if (nr != b.rows ())
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5775 diff changeset	1652 (*current_liboctave_error_handler)
6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5775 diff changeset	1653 ("matrix dimension mismatch solution of linear equations");
6924 be176b7e110a [project @ 2007-09-25 19:08:19 by dbateman] dbateman parents: 6840 diff changeset	1654 else if (nr == 0 \|\| nc == 0 \|\| b.cols () == 0)
be176b7e110a [project @ 2007-09-25 19:08:19 by dbateman] dbateman parents: 6840 diff changeset	1655 retval = Matrix (nc, b.cols (), 0.0);
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5775 diff changeset	1656 else
6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5775 diff changeset	1657 {
6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5775 diff changeset	1658 volatile int typ = mattype.type ();
6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5775 diff changeset	1659
6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5775 diff changeset	1660 if (typ == MatrixType::Permuted_Lower \|\|
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1661 typ == MatrixType::Lower)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1662 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1663 octave_idx_type b_nc = b.cols ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1664 rcon = 1.;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1665 info = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1666
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1667 if (typ == MatrixType::Permuted_Lower)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1668 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1669 (*current_liboctave_error_handler)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1670 ("permuted triangular matrix not implemented");
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1671 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1672 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1673 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1674 const double *tmp_data = fortran_vec ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1675
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1676 if (calc_cond)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1677 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1678 char norm = '1';
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1679 char uplo = 'L';
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1680 char dia = 'N';
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1681
11570 57632dea2446 attempt better backward compatibility for Array constructors John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	1682 Array<double> z (dim_vector (3 * nc, 1));
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1683 double *pz = z.fortran_vec ();
11570 57632dea2446 attempt better backward compatibility for Array constructors John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	1684 Array<octave_idx_type> iz (dim_vector (nc, 1));
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1685 octave_idx_type *piz = iz.fortran_vec ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1686
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11574 diff changeset	1687 F77_XFCN (dtrcon, DTRCON, (F77_CONST_CHAR_ARG2 (&norm, 1),
12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11574 diff changeset	1688 F77_CONST_CHAR_ARG2 (&uplo, 1),
12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11574 diff changeset	1689 F77_CONST_CHAR_ARG2 (&dia, 1),
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1690 nr, tmp_data, nr, rcon,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1691 pz, piz, info
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1692 F77_CHAR_ARG_LEN (1)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1693 F77_CHAR_ARG_LEN (1)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1694 F77_CHAR_ARG_LEN (1)));
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1695
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11574 diff changeset	1696 if (info != 0)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1697 info = -2;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1698
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1699 volatile double rcond_plus_one = rcon + 1.0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1700
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1701 if (rcond_plus_one == 1.0 \|\| xisnan (rcon))
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1702 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1703 info = -2;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1704
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1705 if (sing_handler)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1706 sing_handler (rcon);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1707 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1708 (*current_liboctave_error_handler)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1709 ("matrix singular to machine precision, rcond = %g",
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1710 rcon);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1711 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1712 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1713
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1714 if (info == 0)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1715 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1716 retval = b;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1717 double *result = retval.fortran_vec ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1718
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1719 char uplo = 'L';
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1720 char trans = get_blas_char (transt);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1721 char dia = 'N';
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1722
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11574 diff changeset	1723 F77_XFCN (dtrtrs, DTRTRS, (F77_CONST_CHAR_ARG2 (&uplo, 1),
12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11574 diff changeset	1724 F77_CONST_CHAR_ARG2 (&trans, 1),
12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11574 diff changeset	1725 F77_CONST_CHAR_ARG2 (&dia, 1),
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1726 nr, b_nc, tmp_data, nr,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1727 result, nr, info
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1728 F77_CHAR_ARG_LEN (1)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1729 F77_CHAR_ARG_LEN (1)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1730 F77_CHAR_ARG_LEN (1)));
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1731 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1732 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1733 }
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5775 diff changeset	1734 else
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1735 (*current_liboctave_error_handler) ("incorrect matrix type");
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5775 diff changeset	1736 }
6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5775 diff changeset	1737
6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5775 diff changeset	1738 return retval;
6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5775 diff changeset	1739 }
6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5775 diff changeset	1740
6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5775 diff changeset	1741 Matrix
6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5775 diff changeset	1742 Matrix::fsolve (MatrixType &mattype, const Matrix& b, octave_idx_type& info,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1743 double& rcon, solve_singularity_handler sing_handler,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1744 bool calc_cond) const
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5775 diff changeset	1745 {
6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5775 diff changeset	1746 Matrix retval;
6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5775 diff changeset	1747
6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5775 diff changeset	1748 octave_idx_type nr = rows ();
6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5775 diff changeset	1749 octave_idx_type nc = cols ();
6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5775 diff changeset	1750
6924 be176b7e110a [project @ 2007-09-25 19:08:19 by dbateman] dbateman parents: 6840 diff changeset	1751 if (nr != nc \|\| nr != b.rows ())
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5775 diff changeset	1752 (*current_liboctave_error_handler)
6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5775 diff changeset	1753 ("matrix dimension mismatch solution of linear equations");
6924 be176b7e110a [project @ 2007-09-25 19:08:19 by dbateman] dbateman parents: 6840 diff changeset	1754 else if (nr == 0 \|\| b.cols () == 0)
be176b7e110a [project @ 2007-09-25 19:08:19 by dbateman] dbateman parents: 6840 diff changeset	1755 retval = Matrix (nc, b.cols (), 0.0);
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5775 diff changeset	1756 else
6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5775 diff changeset	1757 {
6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5775 diff changeset	1758 volatile int typ = mattype.type ();
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11574 diff changeset	1759
17769 49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	1760 // Calculate the norm of the matrix, for later use.
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5775 diff changeset	1761 double anorm = -1.;
6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5775 diff changeset	1762
6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5775 diff changeset	1763 if (typ == MatrixType::Hermitian)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1764 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1765 info = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1766 char job = 'L';
15382 197774b411ec rcond: use new copy of data for full factorization if positive definite cholesky factorization fails (bug #37336) John W. Eaton <jwe@octave.org> parents: 14138 diff changeset	1767
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1768 Matrix atmp = *this;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1769 double *tmp_data = atmp.fortran_vec ();
15382 197774b411ec rcond: use new copy of data for full factorization if positive definite cholesky factorization fails (bug #37336) John W. Eaton <jwe@octave.org> parents: 14138 diff changeset	1770
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1771 anorm = atmp.abs().sum().row(static_cast<octave_idx_type>(0)).max();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1772
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11574 diff changeset	1773 F77_XFCN (dpotrf, DPOTRF, (F77_CONST_CHAR_ARG2 (&job, 1), nr,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1774 tmp_data, nr, info
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1775 F77_CHAR_ARG_LEN (1)));
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1776
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1777 // Throw-away extra info LAPACK gives so as to not change output.
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1778 rcon = 0.0;
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11574 diff changeset	1779 if (info != 0)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1780 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1781 info = -2;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1782
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1783 mattype.mark_as_unsymmetric ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1784 typ = MatrixType::Full;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1785 }
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11574 diff changeset	1786 else
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1787 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1788 if (calc_cond)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1789 {
11570 57632dea2446 attempt better backward compatibility for Array constructors John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	1790 Array<double> z (dim_vector (3 * nc, 1));
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1791 double *pz = z.fortran_vec ();
11570 57632dea2446 attempt better backward compatibility for Array constructors John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	1792 Array<octave_idx_type> iz (dim_vector (nc, 1));
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1793 octave_idx_type *piz = iz.fortran_vec ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1794
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1795 F77_XFCN (dpocon, DPOCON, (F77_CONST_CHAR_ARG2 (&job, 1),
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1796 nr, tmp_data, nr, anorm,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1797 rcon, pz, piz, info
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1798 F77_CHAR_ARG_LEN (1)));
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1799
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11574 diff changeset	1800 if (info != 0)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1801 info = -2;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1802
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1803 volatile double rcond_plus_one = rcon + 1.0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1804
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1805 if (rcond_plus_one == 1.0 \|\| xisnan (rcon))
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1806 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1807 info = -2;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1808
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1809 if (sing_handler)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1810 sing_handler (rcon);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1811 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1812 (*current_liboctave_error_handler)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1813 ("matrix singular to machine precision, rcond = %g",
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1814 rcon);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1815 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1816 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1817
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1818 if (info == 0)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1819 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1820 retval = b;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1821 double *result = retval.fortran_vec ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1822
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1823 octave_idx_type b_nc = b.cols ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1824
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1825 F77_XFCN (dpotrs, DPOTRS, (F77_CONST_CHAR_ARG2 (&job, 1),
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1826 nr, b_nc, tmp_data, nr,
14846 460a3c6d8bf1 maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists. Rik <octave@nomad.inbox5.com> parents: 14557 diff changeset	1827 result, b.rows (), info
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1828 F77_CHAR_ARG_LEN (1)));
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1829 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1830 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1831 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1832 mattype.mark_as_unsymmetric ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1833 typ = MatrixType::Full;
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11574 diff changeset	1834 }
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1835 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1836 }
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5775 diff changeset	1837
6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5775 diff changeset	1838 if (typ == MatrixType::Full)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1839 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1840 info = 0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1841
11570 57632dea2446 attempt better backward compatibility for Array constructors John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	1842 Array<octave_idx_type> ipvt (dim_vector (nr, 1));
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1843 octave_idx_type *pipvt = ipvt.fortran_vec ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1844
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1845 Matrix atmp = *this;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1846 double *tmp_data = atmp.fortran_vec ();
15382 197774b411ec rcond: use new copy of data for full factorization if positive definite cholesky factorization fails (bug #37336) John W. Eaton <jwe@octave.org> parents: 14138 diff changeset	1847
17769 49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	1848 if (anorm < 0.)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1849 anorm = atmp.abs().sum().row(static_cast<octave_idx_type>(0)).max();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1850
11570 57632dea2446 attempt better backward compatibility for Array constructors John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	1851 Array<double> z (dim_vector (4 * nc, 1));
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1852 double *pz = z.fortran_vec ();
11570 57632dea2446 attempt better backward compatibility for Array constructors John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	1853 Array<octave_idx_type> iz (dim_vector (nc, 1));
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1854 octave_idx_type *piz = iz.fortran_vec ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1855
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1856 F77_XFCN (dgetrf, DGETRF, (nr, nr, tmp_data, nr, pipvt, info));
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1857
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1858 // Throw-away extra info LAPACK gives so as to not change output.
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1859 rcon = 0.0;
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11574 diff changeset	1860 if (info != 0)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1861 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1862 info = -2;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1863
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1864 if (sing_handler)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1865 sing_handler (rcon);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1866 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1867 (*current_liboctave_error_handler)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1868 ("matrix singular to machine precision");
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1869
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1870 mattype.mark_as_rectangular ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1871 }
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11574 diff changeset	1872 else
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1873 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1874 if (calc_cond)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1875 {
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11574 diff changeset	1876 // Now calculate the condition number for
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1877 // non-singular matrix.
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1878 char job = '1';
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1879 F77_XFCN (dgecon, DGECON, (F77_CONST_CHAR_ARG2 (&job, 1),
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11574 diff changeset	1880 nc, tmp_data, nr, anorm,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1881 rcon, pz, piz, info
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1882 F77_CHAR_ARG_LEN (1)));
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1883
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11574 diff changeset	1884 if (info != 0)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1885 info = -2;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1886
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1887 volatile double rcond_plus_one = rcon + 1.0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1888
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1889 if (rcond_plus_one == 1.0 \|\| xisnan (rcon))
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1890 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1891 info = -2;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1892
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1893 if (sing_handler)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1894 sing_handler (rcon);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1895 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1896 (*current_liboctave_error_handler)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1897 ("matrix singular to machine precision, rcond = %g",
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1898 rcon);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1899 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1900 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1901
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1902 if (info == 0)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1903 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1904 retval = b;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1905 double *result = retval.fortran_vec ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1906
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1907 octave_idx_type b_nc = b.cols ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1908
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1909 char job = 'N';
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1910 F77_XFCN (dgetrs, DGETRS, (F77_CONST_CHAR_ARG2 (&job, 1),
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1911 nr, b_nc, tmp_data, nr,
14846 460a3c6d8bf1 maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists. Rik <octave@nomad.inbox5.com> parents: 14557 diff changeset	1912 pipvt, result, b.rows (), info
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1913 F77_CHAR_ARG_LEN (1)));
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1914 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1915 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1916 mattype.mark_as_rectangular ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1917 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1918 }
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5775 diff changeset	1919 else if (typ != MatrixType::Hermitian)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1920 (*current_liboctave_error_handler) ("incorrect matrix type");
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5775 diff changeset	1921 }
6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5775 diff changeset	1922
6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5775 diff changeset	1923 return retval;
6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5775 diff changeset	1924 }
6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5775 diff changeset	1925
6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5775 diff changeset	1926 Matrix
6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5775 diff changeset	1927 Matrix::solve (MatrixType &typ, const Matrix& b) const
6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5775 diff changeset	1928 {
6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5775 diff changeset	1929 octave_idx_type info;
7788 45f5faba05a2 Add the rcond function David Bateman <dbateman@free.fr> parents: 7620 diff changeset	1930 double rcon;
45f5faba05a2 Add the rcond function David Bateman <dbateman@free.fr> parents: 7620 diff changeset	1931 return solve (typ, b, info, rcon, 0);
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5775 diff changeset	1932 }
6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5775 diff changeset	1933
6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5775 diff changeset	1934 Matrix
9662 0d3b248f4ab6 further improve mixed real-complex division Jaroslav Hajek <highegg@gmail.com> parents: 9661 diff changeset	1935 Matrix::solve (MatrixType &typ, const Matrix& b, octave_idx_type& info) const
0d3b248f4ab6 further improve mixed real-complex division Jaroslav Hajek <highegg@gmail.com> parents: 9661 diff changeset	1936 {
0d3b248f4ab6 further improve mixed real-complex division Jaroslav Hajek <highegg@gmail.com> parents: 9661 diff changeset	1937 double rcon;
0d3b248f4ab6 further improve mixed real-complex division Jaroslav Hajek <highegg@gmail.com> parents: 9661 diff changeset	1938 return solve (typ, b, info, rcon, 0);
0d3b248f4ab6 further improve mixed real-complex division Jaroslav Hajek <highegg@gmail.com> parents: 9661 diff changeset	1939 }
0d3b248f4ab6 further improve mixed real-complex division Jaroslav Hajek <highegg@gmail.com> parents: 9661 diff changeset	1940
0d3b248f4ab6 further improve mixed real-complex division Jaroslav Hajek <highegg@gmail.com> parents: 9661 diff changeset	1941 Matrix
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11574 diff changeset	1942 Matrix::solve (MatrixType &typ, const Matrix& b, octave_idx_type& info,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1943 double& rcon) const
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5775 diff changeset	1944 {
7788 45f5faba05a2 Add the rcond function David Bateman <dbateman@free.fr> parents: 7620 diff changeset	1945 return solve (typ, b, info, rcon, 0);
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5775 diff changeset	1946 }
6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5775 diff changeset	1947
6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5775 diff changeset	1948 Matrix
6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5775 diff changeset	1949 Matrix::solve (MatrixType &mattype, const Matrix& b, octave_idx_type& info,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1950 double& rcon, solve_singularity_handler sing_handler,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	1951 bool singular_fallback, blas_trans_type transt) const
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5775 diff changeset	1952 {
6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5775 diff changeset	1953 Matrix retval;
6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5775 diff changeset	1954 int typ = mattype.type ();
6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5775 diff changeset	1955
6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5775 diff changeset	1956 if (typ == MatrixType::Unknown)
6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5775 diff changeset	1957 typ = mattype.type (*this);
6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5775 diff changeset	1958
6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5775 diff changeset	1959 // Only calculate the condition number for LU/Cholesky
6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5775 diff changeset	1960 if (typ == MatrixType::Upper \|\| typ == MatrixType::Permuted_Upper)
9661 afcf852256d2 optimize / and '\ for triangular matrices Jaroslav Hajek <highegg@gmail.com> parents: 9658 diff changeset	1961 retval = utsolve (mattype, b, info, rcon, sing_handler, false, transt);
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5775 diff changeset	1962 else if (typ == MatrixType::Lower \|\| typ == MatrixType::Permuted_Lower)
9661 afcf852256d2 optimize / and '\ for triangular matrices Jaroslav Hajek <highegg@gmail.com> parents: 9658 diff changeset	1963 retval = ltsolve (mattype, b, info, rcon, sing_handler, false, transt);
afcf852256d2 optimize / and '\ for triangular matrices Jaroslav Hajek <highegg@gmail.com> parents: 9658 diff changeset	1964 else if (transt == blas_trans \|\| transt == blas_conj_trans)
17769 49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	1965 return transpose ().solve (mattype, b, info, rcon, sing_handler,
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	1966 singular_fallback);
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5775 diff changeset	1967 else if (typ == MatrixType::Full \|\| typ == MatrixType::Hermitian)
7788 45f5faba05a2 Add the rcond function David Bateman <dbateman@free.fr> parents: 7620 diff changeset	1968 retval = fsolve (mattype, b, info, rcon, sing_handler, true);
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5775 diff changeset	1969 else if (typ != MatrixType::Rectangular)
6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5775 diff changeset	1970 {
6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5775 diff changeset	1971 (*current_liboctave_error_handler) ("unknown matrix type");
6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5775 diff changeset	1972 return Matrix ();
6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5775 diff changeset	1973 }
6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5775 diff changeset	1974
6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5775 diff changeset	1975 // Rectangular or one of the above solvers flags a singular matrix
6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5775 diff changeset	1976 if (singular_fallback && mattype.type () == MatrixType::Rectangular)
6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5775 diff changeset	1977 {
6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5775 diff changeset	1978 octave_idx_type rank;
7788 45f5faba05a2 Add the rcond function David Bateman <dbateman@free.fr> parents: 7620 diff changeset	1979 retval = lssolve (b, info, rank, rcon);
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5775 diff changeset	1980 }
6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5775 diff changeset	1981
6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5775 diff changeset	1982 return retval;
6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5775 diff changeset	1983 }
6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5775 diff changeset	1984
6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5775 diff changeset	1985 ComplexMatrix
6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5775 diff changeset	1986 Matrix::solve (MatrixType &typ, const ComplexMatrix& b) const
6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5775 diff changeset	1987 {
9662 0d3b248f4ab6 further improve mixed real-complex division Jaroslav Hajek <highegg@gmail.com> parents: 9661 diff changeset	1988 octave_idx_type info;
0d3b248f4ab6 further improve mixed real-complex division Jaroslav Hajek <highegg@gmail.com> parents: 9661 diff changeset	1989 double rcon;
0d3b248f4ab6 further improve mixed real-complex division Jaroslav Hajek <highegg@gmail.com> parents: 9661 diff changeset	1990 return solve (typ, b, info, rcon, 0);
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5775 diff changeset	1991 }
6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5775 diff changeset	1992
6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5775 diff changeset	1993 ComplexMatrix
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11574 diff changeset	1994 Matrix::solve (MatrixType &typ, const ComplexMatrix& b,
17769 49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	1995 octave_idx_type& info) const
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5775 diff changeset	1996 {
9662 0d3b248f4ab6 further improve mixed real-complex division Jaroslav Hajek <highegg@gmail.com> parents: 9661 diff changeset	1997 double rcon;
0d3b248f4ab6 further improve mixed real-complex division Jaroslav Hajek <highegg@gmail.com> parents: 9661 diff changeset	1998 return solve (typ, b, info, rcon, 0);
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5775 diff changeset	1999 }
6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5775 diff changeset	2000
6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5775 diff changeset	2001 ComplexMatrix
6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5775 diff changeset	2002 Matrix::solve (MatrixType &typ, const ComplexMatrix& b, octave_idx_type& info,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	2003 double& rcon) const
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5775 diff changeset	2004 {
9662 0d3b248f4ab6 further improve mixed real-complex division Jaroslav Hajek <highegg@gmail.com> parents: 9661 diff changeset	2005 return solve (typ, b, info, rcon, 0);
0d3b248f4ab6 further improve mixed real-complex division Jaroslav Hajek <highegg@gmail.com> parents: 9661 diff changeset	2006 }
0d3b248f4ab6 further improve mixed real-complex division Jaroslav Hajek <highegg@gmail.com> parents: 9661 diff changeset	2007
0d3b248f4ab6 further improve mixed real-complex division Jaroslav Hajek <highegg@gmail.com> parents: 9661 diff changeset	2008 static Matrix
0d3b248f4ab6 further improve mixed real-complex division Jaroslav Hajek <highegg@gmail.com> parents: 9661 diff changeset	2009 stack_complex_matrix (const ComplexMatrix& cm)
0d3b248f4ab6 further improve mixed real-complex division Jaroslav Hajek <highegg@gmail.com> parents: 9661 diff changeset	2010 {
18084 8e056300994b Follow coding convention of defining and initializing only 1 variable per line in liboctave. Rik <rik@octave.org> parents: 18083 diff changeset	2011 octave_idx_type m = cm.rows ();
8e056300994b Follow coding convention of defining and initializing only 1 variable per line in liboctave. Rik <rik@octave.org> parents: 18083 diff changeset	2012 octave_idx_type n = cm.cols ();
8e056300994b Follow coding convention of defining and initializing only 1 variable per line in liboctave. Rik <rik@octave.org> parents: 18083 diff changeset	2013 octave_idx_type nel = m*n;
9662 0d3b248f4ab6 further improve mixed real-complex division Jaroslav Hajek <highegg@gmail.com> parents: 9661 diff changeset	2014 Matrix retval (m, 2*n);
0d3b248f4ab6 further improve mixed real-complex division Jaroslav Hajek <highegg@gmail.com> parents: 9661 diff changeset	2015 const Complex *cmd = cm.data ();
0d3b248f4ab6 further improve mixed real-complex division Jaroslav Hajek <highegg@gmail.com> parents: 9661 diff changeset	2016 double *rd = retval.fortran_vec ();
0d3b248f4ab6 further improve mixed real-complex division Jaroslav Hajek <highegg@gmail.com> parents: 9661 diff changeset	2017 for (octave_idx_type i = 0; i < nel; i++)
0d3b248f4ab6 further improve mixed real-complex division Jaroslav Hajek <highegg@gmail.com> parents: 9661 diff changeset	2018 {
0d3b248f4ab6 further improve mixed real-complex division Jaroslav Hajek <highegg@gmail.com> parents: 9661 diff changeset	2019 rd[i] = std::real (cmd[i]);
0d3b248f4ab6 further improve mixed real-complex division Jaroslav Hajek <highegg@gmail.com> parents: 9661 diff changeset	2020 rd[nel+i] = std::imag (cmd[i]);
0d3b248f4ab6 further improve mixed real-complex division Jaroslav Hajek <highegg@gmail.com> parents: 9661 diff changeset	2021 }
0d3b248f4ab6 further improve mixed real-complex division Jaroslav Hajek <highegg@gmail.com> parents: 9661 diff changeset	2022 return retval;
0d3b248f4ab6 further improve mixed real-complex division Jaroslav Hajek <highegg@gmail.com> parents: 9661 diff changeset	2023 }
0d3b248f4ab6 further improve mixed real-complex division Jaroslav Hajek <highegg@gmail.com> parents: 9661 diff changeset	2024
0d3b248f4ab6 further improve mixed real-complex division Jaroslav Hajek <highegg@gmail.com> parents: 9661 diff changeset	2025 static ComplexMatrix
0d3b248f4ab6 further improve mixed real-complex division Jaroslav Hajek <highegg@gmail.com> parents: 9661 diff changeset	2026 unstack_complex_matrix (const Matrix& sm)
0d3b248f4ab6 further improve mixed real-complex division Jaroslav Hajek <highegg@gmail.com> parents: 9661 diff changeset	2027 {
18084 8e056300994b Follow coding convention of defining and initializing only 1 variable per line in liboctave. Rik <rik@octave.org> parents: 18083 diff changeset	2028 octave_idx_type m = sm.rows ();
8e056300994b Follow coding convention of defining and initializing only 1 variable per line in liboctave. Rik <rik@octave.org> parents: 18083 diff changeset	2029 octave_idx_type n = sm.cols () / 2;
8e056300994b Follow coding convention of defining and initializing only 1 variable per line in liboctave. Rik <rik@octave.org> parents: 18083 diff changeset	2030 octave_idx_type nel = m*n;
9662 0d3b248f4ab6 further improve mixed real-complex division Jaroslav Hajek <highegg@gmail.com> parents: 9661 diff changeset	2031 ComplexMatrix retval (m, n);
0d3b248f4ab6 further improve mixed real-complex division Jaroslav Hajek <highegg@gmail.com> parents: 9661 diff changeset	2032 const double *smd = sm.data ();
0d3b248f4ab6 further improve mixed real-complex division Jaroslav Hajek <highegg@gmail.com> parents: 9661 diff changeset	2033 Complex *rd = retval.fortran_vec ();
0d3b248f4ab6 further improve mixed real-complex division Jaroslav Hajek <highegg@gmail.com> parents: 9661 diff changeset	2034 for (octave_idx_type i = 0; i < nel; i++)
0d3b248f4ab6 further improve mixed real-complex division Jaroslav Hajek <highegg@gmail.com> parents: 9661 diff changeset	2035 rd[i] = Complex (smd[i], smd[nel+i]);
0d3b248f4ab6 further improve mixed real-complex division Jaroslav Hajek <highegg@gmail.com> parents: 9661 diff changeset	2036 return retval;
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5775 diff changeset	2037 }
6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5775 diff changeset	2038
6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5775 diff changeset	2039 ComplexMatrix
6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5775 diff changeset	2040 Matrix::solve (MatrixType &typ, const ComplexMatrix& b, octave_idx_type& info,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	2041 double& rcon, solve_singularity_handler sing_handler,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	2042 bool singular_fallback, blas_trans_type transt) const
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5775 diff changeset	2043 {
9662 0d3b248f4ab6 further improve mixed real-complex division Jaroslav Hajek <highegg@gmail.com> parents: 9661 diff changeset	2044 Matrix tmp = stack_complex_matrix (b);
0d3b248f4ab6 further improve mixed real-complex division Jaroslav Hajek <highegg@gmail.com> parents: 9661 diff changeset	2045 tmp = solve (typ, tmp, info, rcon, sing_handler, singular_fallback, transt);
0d3b248f4ab6 further improve mixed real-complex division Jaroslav Hajek <highegg@gmail.com> parents: 9661 diff changeset	2046 return unstack_complex_matrix (tmp);
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5775 diff changeset	2047 }
6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5775 diff changeset	2048
6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5775 diff changeset	2049 ColumnVector
6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5775 diff changeset	2050 Matrix::solve (MatrixType &typ, const ColumnVector& b) const
6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5775 diff changeset	2051 {
7788 45f5faba05a2 Add the rcond function David Bateman <dbateman@free.fr> parents: 7620 diff changeset	2052 octave_idx_type info; double rcon;
45f5faba05a2 Add the rcond function David Bateman <dbateman@free.fr> parents: 7620 diff changeset	2053 return solve (typ, b, info, rcon);
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5775 diff changeset	2054 }
6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5775 diff changeset	2055
6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5775 diff changeset	2056 ColumnVector
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11574 diff changeset	2057 Matrix::solve (MatrixType &typ, const ColumnVector& b,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	2058 octave_idx_type& info) const
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5775 diff changeset	2059 {
7788 45f5faba05a2 Add the rcond function David Bateman <dbateman@free.fr> parents: 7620 diff changeset	2060 double rcon;
45f5faba05a2 Add the rcond function David Bateman <dbateman@free.fr> parents: 7620 diff changeset	2061 return solve (typ, b, info, rcon);
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5775 diff changeset	2062 }
6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5775 diff changeset	2063
6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5775 diff changeset	2064 ColumnVector
6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5775 diff changeset	2065 Matrix::solve (MatrixType &typ, const ColumnVector& b, octave_idx_type& info,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	2066 double& rcon) const
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5775 diff changeset	2067 {
7788 45f5faba05a2 Add the rcond function David Bateman <dbateman@free.fr> parents: 7620 diff changeset	2068 return solve (typ, b, info, rcon, 0);
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5775 diff changeset	2069 }
6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5775 diff changeset	2070
6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5775 diff changeset	2071 ColumnVector
6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5775 diff changeset	2072 Matrix::solve (MatrixType &typ, const ColumnVector& b, octave_idx_type& info,
17769 49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	2073 double& rcon, solve_singularity_handler sing_handler,
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	2074 blas_trans_type transt) const
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5775 diff changeset	2075 {
6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5775 diff changeset	2076 Matrix tmp (b);
10352 a3635bc1ea19 remove Array2 Jaroslav Hajek <highegg@gmail.com> parents: 10350 diff changeset	2077 tmp = solve (typ, tmp, info, rcon, sing_handler, true, transt);
15018 3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/. Rik <rik@octave.org> parents: 14846 diff changeset	2078 return tmp.column (static_cast<octave_idx_type> (0));
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5775 diff changeset	2079 }
6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5775 diff changeset	2080
6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5775 diff changeset	2081 ComplexColumnVector
6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5775 diff changeset	2082 Matrix::solve (MatrixType &typ, const ComplexColumnVector& b) const
6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5775 diff changeset	2083 {
6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5775 diff changeset	2084 ComplexMatrix tmp (*this);
6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5775 diff changeset	2085 return tmp.solve (typ, b);
6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5775 diff changeset	2086 }
6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5775 diff changeset	2087
6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5775 diff changeset	2088 ComplexColumnVector
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11574 diff changeset	2089 Matrix::solve (MatrixType &typ, const ComplexColumnVector& b,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	2090 octave_idx_type& info) const
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5775 diff changeset	2091 {
6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5775 diff changeset	2092 ComplexMatrix tmp (*this);
6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5775 diff changeset	2093 return tmp.solve (typ, b, info);
6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5775 diff changeset	2094 }
6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5775 diff changeset	2095
6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5775 diff changeset	2096 ComplexColumnVector
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11574 diff changeset	2097 Matrix::solve (MatrixType &typ, const ComplexColumnVector& b,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	2098 octave_idx_type& info, double& rcon) const
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5775 diff changeset	2099 {
6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5775 diff changeset	2100 ComplexMatrix tmp (*this);
7788 45f5faba05a2 Add the rcond function David Bateman <dbateman@free.fr> parents: 7620 diff changeset	2101 return tmp.solve (typ, b, info, rcon);
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5775 diff changeset	2102 }
6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5775 diff changeset	2103
6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5775 diff changeset	2104 ComplexColumnVector
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11574 diff changeset	2105 Matrix::solve (MatrixType &typ, const ComplexColumnVector& b,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	2106 octave_idx_type& info, double& rcon,
17769 49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	2107 solve_singularity_handler sing_handler,
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	2108 blas_trans_type transt) const
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5775 diff changeset	2109 {
6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5775 diff changeset	2110 ComplexMatrix tmp (*this);
15018 3d8ace26c5b4 maint: Use Octave coding conventions for cuddled parentheses in liboctave/. Rik <rik@octave.org> parents: 14846 diff changeset	2111 return tmp.solve (typ, b, info, rcon, sing_handler, transt);
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5775 diff changeset	2112 }
6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5775 diff changeset	2113
6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5775 diff changeset	2114 Matrix
458 38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2115 Matrix::solve (const Matrix& b) const
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2116 {
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	2117 octave_idx_type info;
7788 45f5faba05a2 Add the rcond function David Bateman <dbateman@free.fr> parents: 7620 diff changeset	2118 double rcon;
45f5faba05a2 Add the rcond function David Bateman <dbateman@free.fr> parents: 7620 diff changeset	2119 return solve (b, info, rcon, 0);
458 38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2120 }
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2121
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2122 Matrix
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	2123 Matrix::solve (const Matrix& b, octave_idx_type& info) const
458 38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2124 {
7788 45f5faba05a2 Add the rcond function David Bateman <dbateman@free.fr> parents: 7620 diff changeset	2125 double rcon;
45f5faba05a2 Add the rcond function David Bateman <dbateman@free.fr> parents: 7620 diff changeset	2126 return solve (b, info, rcon, 0);
458 38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2127 }
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2128
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2129 Matrix
7788 45f5faba05a2 Add the rcond function David Bateman <dbateman@free.fr> parents: 7620 diff changeset	2130 Matrix::solve (const Matrix& b, octave_idx_type& info, double& rcon) const
458 38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2131 {
7788 45f5faba05a2 Add the rcond function David Bateman <dbateman@free.fr> parents: 7620 diff changeset	2132 return solve (b, info, rcon, 0);
3480 45742a3b1f7c [project @ 2000-01-26 06:16:41 by jwe] jwe parents: 3469 diff changeset	2133 }
45742a3b1f7c [project @ 2000-01-26 06:16:41 by jwe] jwe parents: 3469 diff changeset	2134
45742a3b1f7c [project @ 2000-01-26 06:16:41 by jwe] jwe parents: 3469 diff changeset	2135 Matrix
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5775 diff changeset	2136 Matrix::solve (const Matrix& b, octave_idx_type& info,
17769 49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	2137 double& rcon, solve_singularity_handler sing_handler,
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	2138 blas_trans_type transt) const
3480 45742a3b1f7c [project @ 2000-01-26 06:16:41 by jwe] jwe parents: 3469 diff changeset	2139 {
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5775 diff changeset	2140 MatrixType mattype (*this);
9661 afcf852256d2 optimize / and '\ for triangular matrices Jaroslav Hajek <highegg@gmail.com> parents: 9658 diff changeset	2141 return solve (mattype, b, info, rcon, sing_handler, true, transt);
458 38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2142 }
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2143
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2144 ComplexMatrix
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2145 Matrix::solve (const ComplexMatrix& b) const
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2146 {
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2147 ComplexMatrix tmp (*this);
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2148 return tmp.solve (b);
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2149 }
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2150
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2151 ComplexMatrix
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	2152 Matrix::solve (const ComplexMatrix& b, octave_idx_type& info) const
458 38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2153 {
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2154 ComplexMatrix tmp (*this);
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2155 return tmp.solve (b, info);
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2156 }
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2157
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2158 ComplexMatrix
17769 49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	2159 Matrix::solve (const ComplexMatrix& b, octave_idx_type& info,
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	2160 double& rcon) const
458 38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2161 {
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2162 ComplexMatrix tmp (*this);
7788 45f5faba05a2 Add the rcond function David Bateman <dbateman@free.fr> parents: 7620 diff changeset	2163 return tmp.solve (b, info, rcon);
458 38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2164 }
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2165
3480 45742a3b1f7c [project @ 2000-01-26 06:16:41 by jwe] jwe parents: 3469 diff changeset	2166 ComplexMatrix
7788 45f5faba05a2 Add the rcond function David Bateman <dbateman@free.fr> parents: 7620 diff changeset	2167 Matrix::solve (const ComplexMatrix& b, octave_idx_type& info, double& rcon,
17769 49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	2168 solve_singularity_handler sing_handler,
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	2169 blas_trans_type transt) const
3480 45742a3b1f7c [project @ 2000-01-26 06:16:41 by jwe] jwe parents: 3469 diff changeset	2170 {
45742a3b1f7c [project @ 2000-01-26 06:16:41 by jwe] jwe parents: 3469 diff changeset	2171 ComplexMatrix tmp (*this);
9661 afcf852256d2 optimize / and '\ for triangular matrices Jaroslav Hajek <highegg@gmail.com> parents: 9658 diff changeset	2172 return tmp.solve (b, info, rcon, sing_handler, transt);
3480 45742a3b1f7c [project @ 2000-01-26 06:16:41 by jwe] jwe parents: 3469 diff changeset	2173 }
45742a3b1f7c [project @ 2000-01-26 06:16:41 by jwe] jwe parents: 3469 diff changeset	2174
458 38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2175 ColumnVector
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2176 Matrix::solve (const ColumnVector& b) const
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2177 {
7788 45f5faba05a2 Add the rcond function David Bateman <dbateman@free.fr> parents: 7620 diff changeset	2178 octave_idx_type info; double rcon;
45f5faba05a2 Add the rcond function David Bateman <dbateman@free.fr> parents: 7620 diff changeset	2179 return solve (b, info, rcon);
458 38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2180 }
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2181
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2182 ColumnVector
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	2183 Matrix::solve (const ColumnVector& b, octave_idx_type& info) const
458 38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2184 {
7788 45f5faba05a2 Add the rcond function David Bateman <dbateman@free.fr> parents: 7620 diff changeset	2185 double rcon;
45f5faba05a2 Add the rcond function David Bateman <dbateman@free.fr> parents: 7620 diff changeset	2186 return solve (b, info, rcon);
458 38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2187 }
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2188
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2189 ColumnVector
7788 45f5faba05a2 Add the rcond function David Bateman <dbateman@free.fr> parents: 7620 diff changeset	2190 Matrix::solve (const ColumnVector& b, octave_idx_type& info, double& rcon) const
458 38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2191 {
7788 45f5faba05a2 Add the rcond function David Bateman <dbateman@free.fr> parents: 7620 diff changeset	2192 return solve (b, info, rcon, 0);
3480 45742a3b1f7c [project @ 2000-01-26 06:16:41 by jwe] jwe parents: 3469 diff changeset	2193 }
45742a3b1f7c [project @ 2000-01-26 06:16:41 by jwe] jwe parents: 3469 diff changeset	2194
45742a3b1f7c [project @ 2000-01-26 06:16:41 by jwe] jwe parents: 3469 diff changeset	2195 ColumnVector
7788 45f5faba05a2 Add the rcond function David Bateman <dbateman@free.fr> parents: 7620 diff changeset	2196 Matrix::solve (const ColumnVector& b, octave_idx_type& info, double& rcon,
17769 49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	2197 solve_singularity_handler sing_handler,
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	2198 blas_trans_type transt) const
3480 45742a3b1f7c [project @ 2000-01-26 06:16:41 by jwe] jwe parents: 3469 diff changeset	2199 {
5785 6b9cec830d72 [project @ 2006-05-03 19:32:46 by dbateman] dbateman parents: 5775 diff changeset	2200 MatrixType mattype (*this);
9661 afcf852256d2 optimize / and '\ for triangular matrices Jaroslav Hajek <highegg@gmail.com> parents: 9658 diff changeset	2201 return solve (mattype, b, info, rcon, sing_handler, transt);
458 38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2202 }
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2203
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2204 ComplexColumnVector
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2205 Matrix::solve (const ComplexColumnVector& b) const
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2206 {
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2207 ComplexMatrix tmp (*this);
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2208 return tmp.solve (b);
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2209 }
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2210
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2211 ComplexColumnVector
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	2212 Matrix::solve (const ComplexColumnVector& b, octave_idx_type& info) const
458 38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2213 {
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2214 ComplexMatrix tmp (*this);
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2215 return tmp.solve (b, info);
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2216 }
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2217
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2218 ComplexColumnVector
17769 49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	2219 Matrix::solve (const ComplexColumnVector& b, octave_idx_type& info,
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	2220 double& rcon) const
458 38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2221 {
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2222 ComplexMatrix tmp (*this);
7788 45f5faba05a2 Add the rcond function David Bateman <dbateman@free.fr> parents: 7620 diff changeset	2223 return tmp.solve (b, info, rcon);
458 38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2224 }
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2225
3480 45742a3b1f7c [project @ 2000-01-26 06:16:41 by jwe] jwe parents: 3469 diff changeset	2226 ComplexColumnVector
17769 49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	2227 Matrix::solve (const ComplexColumnVector& b, octave_idx_type& info,
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	2228 double& rcon,
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	2229 solve_singularity_handler sing_handler,
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	2230 blas_trans_type transt) const
3480 45742a3b1f7c [project @ 2000-01-26 06:16:41 by jwe] jwe parents: 3469 diff changeset	2231 {
45742a3b1f7c [project @ 2000-01-26 06:16:41 by jwe] jwe parents: 3469 diff changeset	2232 ComplexMatrix tmp (*this);
9661 afcf852256d2 optimize / and '\ for triangular matrices Jaroslav Hajek <highegg@gmail.com> parents: 9658 diff changeset	2233 return tmp.solve (b, info, rcon, sing_handler, transt);
3480 45742a3b1f7c [project @ 2000-01-26 06:16:41 by jwe] jwe parents: 3469 diff changeset	2234 }
45742a3b1f7c [project @ 2000-01-26 06:16:41 by jwe] jwe parents: 3469 diff changeset	2235
458 38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2236 Matrix
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2237 Matrix::lssolve (const Matrix& b) const
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2238 {
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	2239 octave_idx_type info;
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	2240 octave_idx_type rank;
7788 45f5faba05a2 Add the rcond function David Bateman <dbateman@free.fr> parents: 7620 diff changeset	2241 double rcon;
45f5faba05a2 Add the rcond function David Bateman <dbateman@free.fr> parents: 7620 diff changeset	2242 return lssolve (b, info, rank, rcon);
458 38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2243 }
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2244
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2245 Matrix
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	2246 Matrix::lssolve (const Matrix& b, octave_idx_type& info) const
458 38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2247 {
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	2248 octave_idx_type rank;
7788 45f5faba05a2 Add the rcond function David Bateman <dbateman@free.fr> parents: 7620 diff changeset	2249 double rcon;
45f5faba05a2 Add the rcond function David Bateman <dbateman@free.fr> parents: 7620 diff changeset	2250 return lssolve (b, info, rank, rcon);
458 38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2251 }
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2252
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2253 Matrix
7072 b48d486f641d [project @ 2007-10-26 15:52:57 by jwe] jwe parents: 7071 diff changeset	2254 Matrix::lssolve (const Matrix& b, octave_idx_type& info,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	2255 octave_idx_type& rank) const
458 38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2256 {
7788 45f5faba05a2 Add the rcond function David Bateman <dbateman@free.fr> parents: 7620 diff changeset	2257 double rcon;
45f5faba05a2 Add the rcond function David Bateman <dbateman@free.fr> parents: 7620 diff changeset	2258 return lssolve (b, info, rank, rcon);
7076 0bade2dc44a1 [project @ 2007-10-29 18:09:57 by jwe] jwe parents: 7072 diff changeset	2259 }
0bade2dc44a1 [project @ 2007-10-29 18:09:57 by jwe] jwe parents: 7072 diff changeset	2260
0bade2dc44a1 [project @ 2007-10-29 18:09:57 by jwe] jwe parents: 7072 diff changeset	2261 Matrix
0bade2dc44a1 [project @ 2007-10-29 18:09:57 by jwe] jwe parents: 7072 diff changeset	2262 Matrix::lssolve (const Matrix& b, octave_idx_type& info,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	2263 octave_idx_type& rank, double &rcon) const
7076 0bade2dc44a1 [project @ 2007-10-29 18:09:57 by jwe] jwe parents: 7072 diff changeset	2264 {
1948 d7dec93d4b87 [project @ 1996-02-14 03:45:49 by jwe] jwe parents: 1882 diff changeset	2265 Matrix retval;
d7dec93d4b87 [project @ 1996-02-14 03:45:49 by jwe] jwe parents: 1882 diff changeset	2266
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	2267 octave_idx_type nrhs = b.cols ();
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	2268
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	2269 octave_idx_type m = rows ();
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	2270 octave_idx_type n = cols ();
458 38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2271
6924 be176b7e110a [project @ 2007-09-25 19:08:19 by dbateman] dbateman parents: 6840 diff changeset	2272 if (m != b.rows ())
1948 d7dec93d4b87 [project @ 1996-02-14 03:45:49 by jwe] jwe parents: 1882 diff changeset	2273 (*current_liboctave_error_handler)
6924 be176b7e110a [project @ 2007-09-25 19:08:19 by dbateman] dbateman parents: 6840 diff changeset	2274 ("matrix dimension mismatch solution of linear equations");
be176b7e110a [project @ 2007-09-25 19:08:19 by dbateman] dbateman parents: 6840 diff changeset	2275 else if (m == 0 \|\| n == 0 \|\| b.cols () == 0)
be176b7e110a [project @ 2007-09-25 19:08:19 by dbateman] dbateman parents: 6840 diff changeset	2276 retval = Matrix (n, b.cols (), 0.0);
1948 d7dec93d4b87 [project @ 1996-02-14 03:45:49 by jwe] jwe parents: 1882 diff changeset	2277 else
458 38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2278 {
7072 b48d486f641d [project @ 2007-10-26 15:52:57 by jwe] jwe parents: 7071 diff changeset	2279 volatile octave_idx_type minmn = (m < n ? m : n);
b48d486f641d [project @ 2007-10-26 15:52:57 by jwe] jwe parents: 7071 diff changeset	2280 octave_idx_type maxmn = m > n ? m : n;
7788 45f5faba05a2 Add the rcond function David Bateman <dbateman@free.fr> parents: 7620 diff changeset	2281 rcon = -1.0;
7072 b48d486f641d [project @ 2007-10-26 15:52:57 by jwe] jwe parents: 7071 diff changeset	2282 if (m != n)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	2283 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	2284 retval = Matrix (maxmn, nrhs, 0.0);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	2285
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	2286 for (octave_idx_type j = 0; j < nrhs; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	2287 for (octave_idx_type i = 0; i < m; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	2288 retval.elem (i, j) = b.elem (i, j);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	2289 }
7072 b48d486f641d [project @ 2007-10-26 15:52:57 by jwe] jwe parents: 7071 diff changeset	2290 else
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	2291 retval = b;
7072 b48d486f641d [project @ 2007-10-26 15:52:57 by jwe] jwe parents: 7071 diff changeset	2292
1948 d7dec93d4b87 [project @ 1996-02-14 03:45:49 by jwe] jwe parents: 1882 diff changeset	2293 Matrix atmp = *this;
d7dec93d4b87 [project @ 1996-02-14 03:45:49 by jwe] jwe parents: 1882 diff changeset	2294 double *tmp_data = atmp.fortran_vec ();
d7dec93d4b87 [project @ 1996-02-14 03:45:49 by jwe] jwe parents: 1882 diff changeset	2295
7072 b48d486f641d [project @ 2007-10-26 15:52:57 by jwe] jwe parents: 7071 diff changeset	2296 double *pretval = retval.fortran_vec ();
11570 57632dea2446 attempt better backward compatibility for Array constructors John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	2297 Array<double> s (dim_vector (minmn, 1));
7071 c3b479e753dd [project @ 2007-10-26 15:14:34 by jwe] jwe parents: 7033 diff changeset	2298 double *ps = s.fortran_vec ();
1948 d7dec93d4b87 [project @ 1996-02-14 03:45:49 by jwe] jwe parents: 1882 diff changeset	2299
7072 b48d486f641d [project @ 2007-10-26 15:52:57 by jwe] jwe parents: 7071 diff changeset	2300 // Ask DGELSD what the dimension of WORK should be.
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	2301 octave_idx_type lwork = -1;
3752 719a44ff67c9 [project @ 2000-12-13 19:02:42 by jwe] jwe parents: 3726 diff changeset	2302
11570 57632dea2446 attempt better backward compatibility for Array constructors John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	2303 Array<double> work (dim_vector (1, 1));
1948 d7dec93d4b87 [project @ 1996-02-14 03:45:49 by jwe] jwe parents: 1882 diff changeset	2304
7477 8b22207ef9ca ilaenv --> xilaenv John W. Eaton <jwe@octave.org> parents: 7476 diff changeset	2305 octave_idx_type smlsiz;
8b22207ef9ca ilaenv --> xilaenv John W. Eaton <jwe@octave.org> parents: 7476 diff changeset	2306 F77_FUNC (xilaenv, XILAENV) (9, F77_CONST_CHAR_ARG2 ("DGELSD", 6),
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	2307 F77_CONST_CHAR_ARG2 (" ", 1),
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	2308 0, 0, 0, 0, smlsiz
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	2309 F77_CHAR_ARG_LEN (6)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	2310 F77_CHAR_ARG_LEN (1));
7079 6d3e53a2f963 [project @ 2007-10-30 19:26:32 by jwe] jwe parents: 7076 diff changeset	2311
7486 6a6d2abe51ff more xGELSD workspace fixes John W. Eaton <jwe@octave.org> parents: 7482 diff changeset	2312 octave_idx_type mnthr;
6a6d2abe51ff more xGELSD workspace fixes John W. Eaton <jwe@octave.org> parents: 7482 diff changeset	2313 F77_FUNC (xilaenv, XILAENV) (6, F77_CONST_CHAR_ARG2 ("DGELSD", 6),
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	2314 F77_CONST_CHAR_ARG2 (" ", 1),
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	2315 m, n, nrhs, -1, mnthr
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	2316 F77_CHAR_ARG_LEN (6)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	2317 F77_CHAR_ARG_LEN (1));
7486 6a6d2abe51ff more xGELSD workspace fixes John W. Eaton <jwe@octave.org> parents: 7482 diff changeset	2318
7079 6d3e53a2f963 [project @ 2007-10-30 19:26:32 by jwe] jwe parents: 7076 diff changeset	2319 // We compute the size of iwork because DGELSD in older versions
6d3e53a2f963 [project @ 2007-10-30 19:26:32 by jwe] jwe parents: 7076 diff changeset	2320 // of LAPACK does not return it on a query call.
7124 d07cb867891b [project @ 2007-11-08 01:09:44 by jwe] jwe parents: 7079 diff changeset	2321 double dminmn = static_cast<double> (minmn);
d07cb867891b [project @ 2007-11-08 01:09:44 by jwe] jwe parents: 7079 diff changeset	2322 double dsmlsizp1 = static_cast<double> (smlsiz+1);
19037 ff4da3c8ed16 use gnulib log2 modules (bug #42583) John W. Eaton <jwe@octave.org> parents: 17769 diff changeset	2323 double tmp = xlog2 (dminmn / dsmlsizp1);
ff4da3c8ed16 use gnulib log2 modules (bug #42583) John W. Eaton <jwe@octave.org> parents: 17769 diff changeset	2324
7544 f9983d2761df more xGELSD workspace fixes Jaroslav Hajek <highegg@gmail.com> parents: 7532 diff changeset	2325 octave_idx_type nlvl = static_cast<octave_idx_type> (tmp) + 1;
7079 6d3e53a2f963 [project @ 2007-10-30 19:26:32 by jwe] jwe parents: 7076 diff changeset	2326 if (nlvl < 0)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	2327 nlvl = 0;
7079 6d3e53a2f963 [project @ 2007-10-30 19:26:32 by jwe] jwe parents: 7076 diff changeset	2328
6d3e53a2f963 [project @ 2007-10-30 19:26:32 by jwe] jwe parents: 7076 diff changeset	2329 octave_idx_type liwork = 3 * minmn * nlvl + 11 * minmn;
6d3e53a2f963 [project @ 2007-10-30 19:26:32 by jwe] jwe parents: 7076 diff changeset	2330 if (liwork < 1)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	2331 liwork = 1;
11570 57632dea2446 attempt better backward compatibility for Array constructors John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	2332 Array<octave_idx_type> iwork (dim_vector (liwork, 1));
7072 b48d486f641d [project @ 2007-10-26 15:52:57 by jwe] jwe parents: 7071 diff changeset	2333 octave_idx_type* piwork = iwork.fortran_vec ();
b48d486f641d [project @ 2007-10-26 15:52:57 by jwe] jwe parents: 7071 diff changeset	2334
b48d486f641d [project @ 2007-10-26 15:52:57 by jwe] jwe parents: 7071 diff changeset	2335 F77_XFCN (dgelsd, DGELSD, (m, n, nrhs, tmp_data, m, pretval, maxmn,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	2336 ps, rcon, rank, work.fortran_vec (),
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	2337 lwork, piwork, info));
1948 d7dec93d4b87 [project @ 1996-02-14 03:45:49 by jwe] jwe parents: 1882 diff changeset	2338
7476 e9f10b4c05cf fix workspace size calculation for xGELSD Jason Riedy parents: 7416 diff changeset	2339 // The workspace query is broken in at least LAPACK 3.0.0
7488 6470f946a425 another small xGELSD workspace fix John W. Eaton <jwe@octave.org> parents: 7486 diff changeset	2340 // through 3.1.1 when n >= mnthr. The obtuse formula below
7476 e9f10b4c05cf fix workspace size calculation for xGELSD Jason Riedy parents: 7416 diff changeset	2341 // should provide sufficient workspace for DGELSD to operate
e9f10b4c05cf fix workspace size calculation for xGELSD Jason Riedy parents: 7416 diff changeset	2342 // efficiently.
10813 2c2d4a2f1047 fix workspace bug workaround for xGELSD (since 7486:6a6d2abe51ff) Jaroslav Hajek <highegg@gmail.com> parents: 10806 diff changeset	2343 if (n > m && n >= mnthr)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	2344 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	2345 const octave_idx_type wlalsd
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	2346 = 9m + 2msmlsiz + 8mnlvl + mnrhs + (smlsiz+1)*(smlsiz+1);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	2347
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	2348 octave_idx_type addend = m;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	2349
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	2350 if (2*m-4 > addend)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	2351 addend = 2*m-4;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	2352
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	2353 if (nrhs > addend)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	2354 addend = nrhs;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	2355
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	2356 if (n-3*m > addend)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	2357 addend = n-3*m;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	2358
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	2359 if (wlalsd > addend)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	2360 addend = wlalsd;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	2361
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	2362 const octave_idx_type lworkaround = 4m + mm + addend;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	2363
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	2364 if (work(0) < lworkaround)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	2365 work(0) = lworkaround;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	2366 }
7532 493bb0de3199 avoid another xGELSD workspace query bug John W. Eaton <jwe@octave.org> parents: 7503 diff changeset	2367 else if (m >= n)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	2368 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	2369 octave_idx_type lworkaround
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	2370 = 12n + 2nsmlsiz + 8nnlvl + nnrhs + (smlsiz+1)*(smlsiz+1);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	2371
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	2372 if (work(0) < lworkaround)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	2373 work(0) = lworkaround;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	2374 }
7476 e9f10b4c05cf fix workspace size calculation for xGELSD Jason Riedy parents: 7416 diff changeset	2375
7482 29980c6b8604 don't check f77_exception_encountered John W. Eaton <jwe@octave.org> parents: 7478 diff changeset	2376 lwork = static_cast<octave_idx_type> (work(0));
11574 a83bad07f7e3 attempt better backward compatibility for Array resize functions John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	2377 work.resize (dim_vector (lwork, 1));
7482 29980c6b8604 don't check f77_exception_encountered John W. Eaton <jwe@octave.org> parents: 7478 diff changeset	2378
29980c6b8604 don't check f77_exception_encountered John W. Eaton <jwe@octave.org> parents: 7478 diff changeset	2379 F77_XFCN (dgelsd, DGELSD, (m, n, nrhs, tmp_data, m, pretval,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	2380 maxmn, ps, rcon, rank,
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11574 diff changeset	2381 work.fortran_vec (), lwork,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	2382 piwork, info));
7482 29980c6b8604 don't check f77_exception_encountered John W. Eaton <jwe@octave.org> parents: 7478 diff changeset	2383
29980c6b8604 don't check f77_exception_encountered John W. Eaton <jwe@octave.org> parents: 7478 diff changeset	2384 if (s.elem (0) == 0.0)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	2385 rcon = 0.0;
1948 d7dec93d4b87 [project @ 1996-02-14 03:45:49 by jwe] jwe parents: 1882 diff changeset	2386 else
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	2387 rcon = s.elem (minmn - 1) / s.elem (0);
7482 29980c6b8604 don't check f77_exception_encountered John W. Eaton <jwe@octave.org> parents: 7478 diff changeset	2388
29980c6b8604 don't check f77_exception_encountered John W. Eaton <jwe@octave.org> parents: 7478 diff changeset	2389 retval.resize (n, nrhs);
458 38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2390 }
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2391
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2392 return retval;
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2393 }
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2394
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2395 ComplexMatrix
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2396 Matrix::lssolve (const ComplexMatrix& b) const
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2397 {
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2398 ComplexMatrix tmp (*this);
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	2399 octave_idx_type info;
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	2400 octave_idx_type rank;
7788 45f5faba05a2 Add the rcond function David Bateman <dbateman@free.fr> parents: 7620 diff changeset	2401 double rcon;
45f5faba05a2 Add the rcond function David Bateman <dbateman@free.fr> parents: 7620 diff changeset	2402 return tmp.lssolve (b, info, rank, rcon);
458 38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2403 }
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2404
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2405 ComplexMatrix
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	2406 Matrix::lssolve (const ComplexMatrix& b, octave_idx_type& info) const
458 38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2407 {
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2408 ComplexMatrix tmp (*this);
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	2409 octave_idx_type rank;
7788 45f5faba05a2 Add the rcond function David Bateman <dbateman@free.fr> parents: 7620 diff changeset	2410 double rcon;
45f5faba05a2 Add the rcond function David Bateman <dbateman@free.fr> parents: 7620 diff changeset	2411 return tmp.lssolve (b, info, rank, rcon);
458 38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2412 }
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2413
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2414 ComplexMatrix
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11574 diff changeset	2415 Matrix::lssolve (const ComplexMatrix& b, octave_idx_type& info,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	2416 octave_idx_type& rank) const
458 38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2417 {
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2418 ComplexMatrix tmp (*this);
7788 45f5faba05a2 Add the rcond function David Bateman <dbateman@free.fr> parents: 7620 diff changeset	2419 double rcon;
45f5faba05a2 Add the rcond function David Bateman <dbateman@free.fr> parents: 7620 diff changeset	2420 return tmp.lssolve (b, info, rank, rcon);
7076 0bade2dc44a1 [project @ 2007-10-29 18:09:57 by jwe] jwe parents: 7072 diff changeset	2421 }
0bade2dc44a1 [project @ 2007-10-29 18:09:57 by jwe] jwe parents: 7072 diff changeset	2422
0bade2dc44a1 [project @ 2007-10-29 18:09:57 by jwe] jwe parents: 7072 diff changeset	2423 ComplexMatrix
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11574 diff changeset	2424 Matrix::lssolve (const ComplexMatrix& b, octave_idx_type& info,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	2425 octave_idx_type& rank, double& rcon) const
7076 0bade2dc44a1 [project @ 2007-10-29 18:09:57 by jwe] jwe parents: 7072 diff changeset	2426 {
0bade2dc44a1 [project @ 2007-10-29 18:09:57 by jwe] jwe parents: 7072 diff changeset	2427 ComplexMatrix tmp (*this);
7788 45f5faba05a2 Add the rcond function David Bateman <dbateman@free.fr> parents: 7620 diff changeset	2428 return tmp.lssolve (b, info, rank, rcon);
458 38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2429 }
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2430
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2431 ColumnVector
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2432 Matrix::lssolve (const ColumnVector& b) const
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2433 {
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	2434 octave_idx_type info;
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	2435 octave_idx_type rank;
7788 45f5faba05a2 Add the rcond function David Bateman <dbateman@free.fr> parents: 7620 diff changeset	2436 double rcon;
45f5faba05a2 Add the rcond function David Bateman <dbateman@free.fr> parents: 7620 diff changeset	2437 return lssolve (b, info, rank, rcon);
458 38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2438 }
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2439
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2440 ColumnVector
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	2441 Matrix::lssolve (const ColumnVector& b, octave_idx_type& info) const
458 38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2442 {
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	2443 octave_idx_type rank;
7788 45f5faba05a2 Add the rcond function David Bateman <dbateman@free.fr> parents: 7620 diff changeset	2444 double rcon;
45f5faba05a2 Add the rcond function David Bateman <dbateman@free.fr> parents: 7620 diff changeset	2445 return lssolve (b, info, rank, rcon);
458 38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2446 }
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2447
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2448 ColumnVector
7072 b48d486f641d [project @ 2007-10-26 15:52:57 by jwe] jwe parents: 7071 diff changeset	2449 Matrix::lssolve (const ColumnVector& b, octave_idx_type& info,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	2450 octave_idx_type& rank) const
458 38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2451 {
7788 45f5faba05a2 Add the rcond function David Bateman <dbateman@free.fr> parents: 7620 diff changeset	2452 double rcon;
45f5faba05a2 Add the rcond function David Bateman <dbateman@free.fr> parents: 7620 diff changeset	2453 return lssolve (b, info, rank, rcon);
7076 0bade2dc44a1 [project @ 2007-10-29 18:09:57 by jwe] jwe parents: 7072 diff changeset	2454 }
0bade2dc44a1 [project @ 2007-10-29 18:09:57 by jwe] jwe parents: 7072 diff changeset	2455
0bade2dc44a1 [project @ 2007-10-29 18:09:57 by jwe] jwe parents: 7072 diff changeset	2456 ColumnVector
0bade2dc44a1 [project @ 2007-10-29 18:09:57 by jwe] jwe parents: 7072 diff changeset	2457 Matrix::lssolve (const ColumnVector& b, octave_idx_type& info,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	2458 octave_idx_type& rank, double &rcon) const
7076 0bade2dc44a1 [project @ 2007-10-29 18:09:57 by jwe] jwe parents: 7072 diff changeset	2459 {
1948 d7dec93d4b87 [project @ 1996-02-14 03:45:49 by jwe] jwe parents: 1882 diff changeset	2460 ColumnVector retval;
d7dec93d4b87 [project @ 1996-02-14 03:45:49 by jwe] jwe parents: 1882 diff changeset	2461
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	2462 octave_idx_type nrhs = 1;
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	2463
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	2464 octave_idx_type m = rows ();
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	2465 octave_idx_type n = cols ();
458 38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2466
6924 be176b7e110a [project @ 2007-09-25 19:08:19 by dbateman] dbateman parents: 6840 diff changeset	2467 if (m != b.length ())
1948 d7dec93d4b87 [project @ 1996-02-14 03:45:49 by jwe] jwe parents: 1882 diff changeset	2468 (*current_liboctave_error_handler)
6924 be176b7e110a [project @ 2007-09-25 19:08:19 by dbateman] dbateman parents: 6840 diff changeset	2469 ("matrix dimension mismatch solution of linear equations");
be176b7e110a [project @ 2007-09-25 19:08:19 by dbateman] dbateman parents: 6840 diff changeset	2470 else if (m == 0 \|\| n == 0)
be176b7e110a [project @ 2007-09-25 19:08:19 by dbateman] dbateman parents: 6840 diff changeset	2471 retval = ColumnVector (n, 0.0);
1948 d7dec93d4b87 [project @ 1996-02-14 03:45:49 by jwe] jwe parents: 1882 diff changeset	2472 else
458 38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2473 {
7072 b48d486f641d [project @ 2007-10-26 15:52:57 by jwe] jwe parents: 7071 diff changeset	2474 volatile octave_idx_type minmn = (m < n ? m : n);
b48d486f641d [project @ 2007-10-26 15:52:57 by jwe] jwe parents: 7071 diff changeset	2475 octave_idx_type maxmn = m > n ? m : n;
7788 45f5faba05a2 Add the rcond function David Bateman <dbateman@free.fr> parents: 7620 diff changeset	2476 rcon = -1.0;
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11574 diff changeset	2477
7072 b48d486f641d [project @ 2007-10-26 15:52:57 by jwe] jwe parents: 7071 diff changeset	2478 if (m != n)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	2479 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	2480 retval = ColumnVector (maxmn, 0.0);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	2481
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	2482 for (octave_idx_type i = 0; i < m; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	2483 retval.elem (i) = b.elem (i);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	2484 }
7072 b48d486f641d [project @ 2007-10-26 15:52:57 by jwe] jwe parents: 7071 diff changeset	2485 else
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	2486 retval = b;
7072 b48d486f641d [project @ 2007-10-26 15:52:57 by jwe] jwe parents: 7071 diff changeset	2487
1948 d7dec93d4b87 [project @ 1996-02-14 03:45:49 by jwe] jwe parents: 1882 diff changeset	2488 Matrix atmp = *this;
d7dec93d4b87 [project @ 1996-02-14 03:45:49 by jwe] jwe parents: 1882 diff changeset	2489 double *tmp_data = atmp.fortran_vec ();
d7dec93d4b87 [project @ 1996-02-14 03:45:49 by jwe] jwe parents: 1882 diff changeset	2490
7072 b48d486f641d [project @ 2007-10-26 15:52:57 by jwe] jwe parents: 7071 diff changeset	2491 double *pretval = retval.fortran_vec ();
11570 57632dea2446 attempt better backward compatibility for Array constructors John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	2492 Array<double> s (dim_vector (minmn, 1));
7071 c3b479e753dd [project @ 2007-10-26 15:14:34 by jwe] jwe parents: 7033 diff changeset	2493 double *ps = s.fortran_vec ();
1948 d7dec93d4b87 [project @ 1996-02-14 03:45:49 by jwe] jwe parents: 1882 diff changeset	2494
7072 b48d486f641d [project @ 2007-10-26 15:52:57 by jwe] jwe parents: 7071 diff changeset	2495 // Ask DGELSD what the dimension of WORK should be.
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	2496 octave_idx_type lwork = -1;
3752 719a44ff67c9 [project @ 2000-12-13 19:02:42 by jwe] jwe parents: 3726 diff changeset	2497
11570 57632dea2446 attempt better backward compatibility for Array constructors John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	2498 Array<double> work (dim_vector (1, 1));
3752 719a44ff67c9 [project @ 2000-12-13 19:02:42 by jwe] jwe parents: 3726 diff changeset	2499
7544 f9983d2761df more xGELSD workspace fixes Jaroslav Hajek <highegg@gmail.com> parents: 7532 diff changeset	2500 octave_idx_type smlsiz;
f9983d2761df more xGELSD workspace fixes Jaroslav Hajek <highegg@gmail.com> parents: 7532 diff changeset	2501 F77_FUNC (xilaenv, XILAENV) (9, F77_CONST_CHAR_ARG2 ("DGELSD", 6),
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	2502 F77_CONST_CHAR_ARG2 (" ", 1),
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	2503 0, 0, 0, 0, smlsiz
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	2504 F77_CHAR_ARG_LEN (6)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	2505 F77_CHAR_ARG_LEN (1));
7079 6d3e53a2f963 [project @ 2007-10-30 19:26:32 by jwe] jwe parents: 7076 diff changeset	2506
6d3e53a2f963 [project @ 2007-10-30 19:26:32 by jwe] jwe parents: 7076 diff changeset	2507 // We compute the size of iwork because DGELSD in older versions
6d3e53a2f963 [project @ 2007-10-30 19:26:32 by jwe] jwe parents: 7076 diff changeset	2508 // of LAPACK does not return it on a query call.
7124 d07cb867891b [project @ 2007-11-08 01:09:44 by jwe] jwe parents: 7079 diff changeset	2509 double dminmn = static_cast<double> (minmn);
d07cb867891b [project @ 2007-11-08 01:09:44 by jwe] jwe parents: 7079 diff changeset	2510 double dsmlsizp1 = static_cast<double> (smlsiz+1);
19037 ff4da3c8ed16 use gnulib log2 modules (bug #42583) John W. Eaton <jwe@octave.org> parents: 17769 diff changeset	2511 double tmp = xlog2 (dminmn / dsmlsizp1);
ff4da3c8ed16 use gnulib log2 modules (bug #42583) John W. Eaton <jwe@octave.org> parents: 17769 diff changeset	2512
7544 f9983d2761df more xGELSD workspace fixes Jaroslav Hajek <highegg@gmail.com> parents: 7532 diff changeset	2513 octave_idx_type nlvl = static_cast<octave_idx_type> (tmp) + 1;
7079 6d3e53a2f963 [project @ 2007-10-30 19:26:32 by jwe] jwe parents: 7076 diff changeset	2514 if (nlvl < 0)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	2515 nlvl = 0;
7079 6d3e53a2f963 [project @ 2007-10-30 19:26:32 by jwe] jwe parents: 7076 diff changeset	2516
6d3e53a2f963 [project @ 2007-10-30 19:26:32 by jwe] jwe parents: 7076 diff changeset	2517 octave_idx_type liwork = 3 * minmn * nlvl + 11 * minmn;
6d3e53a2f963 [project @ 2007-10-30 19:26:32 by jwe] jwe parents: 7076 diff changeset	2518 if (liwork < 1)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	2519 liwork = 1;
11570 57632dea2446 attempt better backward compatibility for Array constructors John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	2520 Array<octave_idx_type> iwork (dim_vector (liwork, 1));
7072 b48d486f641d [project @ 2007-10-26 15:52:57 by jwe] jwe parents: 7071 diff changeset	2521 octave_idx_type* piwork = iwork.fortran_vec ();
b48d486f641d [project @ 2007-10-26 15:52:57 by jwe] jwe parents: 7071 diff changeset	2522
b48d486f641d [project @ 2007-10-26 15:52:57 by jwe] jwe parents: 7071 diff changeset	2523 F77_XFCN (dgelsd, DGELSD, (m, n, nrhs, tmp_data, m, pretval, maxmn,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	2524 ps, rcon, rank, work.fortran_vec (),
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	2525 lwork, piwork, info));
1948 d7dec93d4b87 [project @ 1996-02-14 03:45:49 by jwe] jwe parents: 1882 diff changeset	2526
7482 29980c6b8604 don't check f77_exception_encountered John W. Eaton <jwe@octave.org> parents: 7478 diff changeset	2527 lwork = static_cast<octave_idx_type> (work(0));
11574 a83bad07f7e3 attempt better backward compatibility for Array resize functions John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	2528 work.resize (dim_vector (lwork, 1));
7482 29980c6b8604 don't check f77_exception_encountered John W. Eaton <jwe@octave.org> parents: 7478 diff changeset	2529
29980c6b8604 don't check f77_exception_encountered John W. Eaton <jwe@octave.org> parents: 7478 diff changeset	2530 F77_XFCN (dgelsd, DGELSD, (m, n, nrhs, tmp_data, m, pretval,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	2531 maxmn, ps, rcon, rank,
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11574 diff changeset	2532 work.fortran_vec (), lwork,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	2533 piwork, info));
7482 29980c6b8604 don't check f77_exception_encountered John W. Eaton <jwe@octave.org> parents: 7478 diff changeset	2534
29980c6b8604 don't check f77_exception_encountered John W. Eaton <jwe@octave.org> parents: 7478 diff changeset	2535 if (rank < minmn)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	2536 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	2537 if (s.elem (0) == 0.0)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	2538 rcon = 0.0;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	2539 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	2540 rcon = s.elem (minmn - 1) / s.elem (0);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	2541 }
7482 29980c6b8604 don't check f77_exception_encountered John W. Eaton <jwe@octave.org> parents: 7478 diff changeset	2542
29980c6b8604 don't check f77_exception_encountered John W. Eaton <jwe@octave.org> parents: 7478 diff changeset	2543 retval.resize (n, nrhs);
458 38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2544 }
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2545
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2546 return retval;
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2547 }
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2548
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2549 ComplexColumnVector
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2550 Matrix::lssolve (const ComplexColumnVector& b) const
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2551 {
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2552 ComplexMatrix tmp (*this);
7076 0bade2dc44a1 [project @ 2007-10-29 18:09:57 by jwe] jwe parents: 7072 diff changeset	2553 octave_idx_type info;
0bade2dc44a1 [project @ 2007-10-29 18:09:57 by jwe] jwe parents: 7072 diff changeset	2554 octave_idx_type rank;
7788 45f5faba05a2 Add the rcond function David Bateman <dbateman@free.fr> parents: 7620 diff changeset	2555 double rcon;
45f5faba05a2 Add the rcond function David Bateman <dbateman@free.fr> parents: 7620 diff changeset	2556 return tmp.lssolve (b, info, rank, rcon);
458 38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2557 }
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2558
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2559 ComplexColumnVector
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	2560 Matrix::lssolve (const ComplexColumnVector& b, octave_idx_type& info) const
458 38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2561 {
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2562 ComplexMatrix tmp (*this);
7076 0bade2dc44a1 [project @ 2007-10-29 18:09:57 by jwe] jwe parents: 7072 diff changeset	2563 octave_idx_type rank;
7788 45f5faba05a2 Add the rcond function David Bateman <dbateman@free.fr> parents: 7620 diff changeset	2564 double rcon;
45f5faba05a2 Add the rcond function David Bateman <dbateman@free.fr> parents: 7620 diff changeset	2565 return tmp.lssolve (b, info, rank, rcon);
458 38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2566 }
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2567
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2568 ComplexColumnVector
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11574 diff changeset	2569 Matrix::lssolve (const ComplexColumnVector& b, octave_idx_type& info,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	2570 octave_idx_type& rank) const
458 38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2571 {
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2572 ComplexMatrix tmp (*this);
7788 45f5faba05a2 Add the rcond function David Bateman <dbateman@free.fr> parents: 7620 diff changeset	2573 double rcon;
45f5faba05a2 Add the rcond function David Bateman <dbateman@free.fr> parents: 7620 diff changeset	2574 return tmp.lssolve (b, info, rank, rcon);
7076 0bade2dc44a1 [project @ 2007-10-29 18:09:57 by jwe] jwe parents: 7072 diff changeset	2575 }
0bade2dc44a1 [project @ 2007-10-29 18:09:57 by jwe] jwe parents: 7072 diff changeset	2576
0bade2dc44a1 [project @ 2007-10-29 18:09:57 by jwe] jwe parents: 7072 diff changeset	2577 ComplexColumnVector
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11574 diff changeset	2578 Matrix::lssolve (const ComplexColumnVector& b, octave_idx_type& info,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	2579 octave_idx_type& rank, double &rcon) const
7076 0bade2dc44a1 [project @ 2007-10-29 18:09:57 by jwe] jwe parents: 7072 diff changeset	2580 {
0bade2dc44a1 [project @ 2007-10-29 18:09:57 by jwe] jwe parents: 7072 diff changeset	2581 ComplexMatrix tmp (*this);
7788 45f5faba05a2 Add the rcond function David Bateman <dbateman@free.fr> parents: 7620 diff changeset	2582 return tmp.lssolve (b, info, rank, rcon);
458 38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2583 }
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2584
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2585 Matrix&
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2586 Matrix::operator += (const DiagMatrix& a)
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2587 {
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	2588 octave_idx_type nr = rows ();
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	2589 octave_idx_type nc = cols ();
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	2590
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	2591 octave_idx_type a_nr = a.rows ();
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	2592 octave_idx_type a_nc = a.cols ();
2385 170053c0f75e [project @ 1996-10-12 18:23:01 by jwe] jwe parents: 2354 diff changeset	2593
170053c0f75e [project @ 1996-10-12 18:23:01 by jwe] jwe parents: 2354 diff changeset	2594 if (nr != a_nr \|\| nc != a_nc)
458 38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2595 {
2385 170053c0f75e [project @ 1996-10-12 18:23:01 by jwe] jwe parents: 2354 diff changeset	2596 gripe_nonconformant ("operator +=", nr, nc, a_nr, a_nc);
458 38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2597 return *this;
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2598 }
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2599
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	2600 for (octave_idx_type i = 0; i < a.length (); i++)
458 38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2601 elem (i, i) += a.elem (i, i);
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2602
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2603 return *this;
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2604 }
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2605
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2606 Matrix&
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2607 Matrix::operator -= (const DiagMatrix& a)
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2608 {
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	2609 octave_idx_type nr = rows ();
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	2610 octave_idx_type nc = cols ();
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	2611
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	2612 octave_idx_type a_nr = a.rows ();
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	2613 octave_idx_type a_nc = a.cols ();
2385 170053c0f75e [project @ 1996-10-12 18:23:01 by jwe] jwe parents: 2354 diff changeset	2614
170053c0f75e [project @ 1996-10-12 18:23:01 by jwe] jwe parents: 2354 diff changeset	2615 if (nr != a_nr \|\| nc != a_nc)
458 38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2616 {
2385 170053c0f75e [project @ 1996-10-12 18:23:01 by jwe] jwe parents: 2354 diff changeset	2617 gripe_nonconformant ("operator -=", nr, nc, a_nr, a_nc);
458 38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2618 return *this;
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2619 }
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2620
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	2621 for (octave_idx_type i = 0; i < a.length (); i++)
458 38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2622 elem (i, i) -= a.elem (i, i);
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2623
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2624 return *this;
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2625 }
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2626
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2627 // unary operations
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2628
2964 0a2551ec7004 [project @ 1997-05-12 07:26:50 by jwe] jwe parents: 2870 diff changeset	2629 boolMatrix
458 38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2630 Matrix::operator ! (void) const
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2631 {
11130 7c573eb981eb consistently give error for operator not applied to NaN values John W. Eaton <jwe@octave.org> parents: 11010 diff changeset	2632 if (any_element_is_nan ())
7c573eb981eb consistently give error for operator not applied to NaN values John W. Eaton <jwe@octave.org> parents: 11010 diff changeset	2633 gripe_nan_to_logical_conversion ();
7c573eb981eb consistently give error for operator not applied to NaN values John W. Eaton <jwe@octave.org> parents: 11010 diff changeset	2634
10362 b47ab50a6aa8 simplify appliers in mx-inlines.cc Jaroslav Hajek <highegg@gmail.com> parents: 10352 diff changeset	2635 return do_mx_unary_op<bool, double> (*this, mx_inline_not);
458 38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2636 }
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2637
1205 8302fab9fe24 [project @ 1995-04-04 02:05:01 by jwe] jwe parents: 1195 diff changeset	2638 // column vector by row vector -> matrix operations
458 38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2639
1205 8302fab9fe24 [project @ 1995-04-04 02:05:01 by jwe] jwe parents: 1195 diff changeset	2640 Matrix
8302fab9fe24 [project @ 1995-04-04 02:05:01 by jwe] jwe parents: 1195 diff changeset	2641 operator * (const ColumnVector& v, const RowVector& a)
458 38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2642 {
1948 d7dec93d4b87 [project @ 1996-02-14 03:45:49 by jwe] jwe parents: 1882 diff changeset	2643 Matrix retval;
d7dec93d4b87 [project @ 1996-02-14 03:45:49 by jwe] jwe parents: 1882 diff changeset	2644
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	2645 octave_idx_type len = v.length ();
3233 98d0ee053ba4 [project @ 1999-01-27 20:23:40 by jwe] jwe parents: 3225 diff changeset	2646
98d0ee053ba4 [project @ 1999-01-27 20:23:40 by jwe] jwe parents: 3225 diff changeset	2647 if (len != 0)
1205 8302fab9fe24 [project @ 1995-04-04 02:05:01 by jwe] jwe parents: 1195 diff changeset	2648 {
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	2649 octave_idx_type a_len = a.length ();
3233 98d0ee053ba4 [project @ 1999-01-27 20:23:40 by jwe] jwe parents: 3225 diff changeset	2650
9359 be6867ba8104 avoid useless zero initialization when doing matrix multiply Jaroslav Hajek <highegg@gmail.com> parents: 9227 diff changeset	2651 retval = Matrix (len, a_len);
3233 98d0ee053ba4 [project @ 1999-01-27 20:23:40 by jwe] jwe parents: 3225 diff changeset	2652 double *c = retval.fortran_vec ();
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11574 diff changeset	2653
4552 6f3382e08a52 [project @ 2003-10-27 20:38:02 by jwe] jwe parents: 4513 diff changeset	2654 F77_XFCN (dgemm, DGEMM, (F77_CONST_CHAR_ARG2 ("N", 1),
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	2655 F77_CONST_CHAR_ARG2 ("N", 1),
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	2656 len, a_len, 1, 1.0, v.data (), len,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	2657 a.data (), 1, 0.0, c, len
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	2658 F77_CHAR_ARG_LEN (1)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	2659 F77_CHAR_ARG_LEN (1)));
1205 8302fab9fe24 [project @ 1995-04-04 02:05:01 by jwe] jwe parents: 1195 diff changeset	2660 }
458 38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2661
1948 d7dec93d4b87 [project @ 1996-02-14 03:45:49 by jwe] jwe parents: 1882 diff changeset	2662 return retval;
458 38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2663 }
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2664
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2665 // other operations.
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2666
2385 170053c0f75e [project @ 1996-10-12 18:23:01 by jwe] jwe parents: 2354 diff changeset	2667 bool
4431 c4bde1d5eb98 [project @ 2003-06-18 15:47:09 by jwe] jwe parents: 4384 diff changeset	2668 Matrix::any_element_is_negative (bool neg_zero) const
2385 170053c0f75e [project @ 1996-10-12 18:23:01 by jwe] jwe parents: 2354 diff changeset	2669 {
11010 9478b216752e simplify more array tests Jaroslav Hajek <highegg@gmail.com> parents: 11008 diff changeset	2670 return (neg_zero ? test_all (xnegative_sign)
9478b216752e simplify more array tests Jaroslav Hajek <highegg@gmail.com> parents: 11008 diff changeset	2671 : do_mx_check<double> (*this, mx_inline_any_negative));
2385 170053c0f75e [project @ 1996-10-12 18:23:01 by jwe] jwe parents: 2354 diff changeset	2672 }
170053c0f75e [project @ 1996-10-12 18:23:01 by jwe] jwe parents: 2354 diff changeset	2673
7922 935be827eaf8 error for NaN values in & and \| expressions John W. Eaton <jwe@octave.org> parents: 7803 diff changeset	2674 bool
13756 6dfebfa334cb allow negative data log plots with OpenGL+FLTK graphics (bug #34232) John W. Eaton <jwe@octave.org> parents: 13007 diff changeset	2675 Matrix::any_element_is_positive (bool neg_zero) const
6dfebfa334cb allow negative data log plots with OpenGL+FLTK graphics (bug #34232) John W. Eaton <jwe@octave.org> parents: 13007 diff changeset	2676 {
6dfebfa334cb allow negative data log plots with OpenGL+FLTK graphics (bug #34232) John W. Eaton <jwe@octave.org> parents: 13007 diff changeset	2677 return (neg_zero ? test_all (xpositive_sign)
6dfebfa334cb allow negative data log plots with OpenGL+FLTK graphics (bug #34232) John W. Eaton <jwe@octave.org> parents: 13007 diff changeset	2678 : do_mx_check<double> (*this, mx_inline_any_positive));
6dfebfa334cb allow negative data log plots with OpenGL+FLTK graphics (bug #34232) John W. Eaton <jwe@octave.org> parents: 13007 diff changeset	2679 }
6dfebfa334cb allow negative data log plots with OpenGL+FLTK graphics (bug #34232) John W. Eaton <jwe@octave.org> parents: 13007 diff changeset	2680
6dfebfa334cb allow negative data log plots with OpenGL+FLTK graphics (bug #34232) John W. Eaton <jwe@octave.org> parents: 13007 diff changeset	2681 bool
7922 935be827eaf8 error for NaN values in & and \| expressions John W. Eaton <jwe@octave.org> parents: 7803 diff changeset	2682 Matrix::any_element_is_nan (void) const
935be827eaf8 error for NaN values in & and \| expressions John W. Eaton <jwe@octave.org> parents: 7803 diff changeset	2683 {
11010 9478b216752e simplify more array tests Jaroslav Hajek <highegg@gmail.com> parents: 11008 diff changeset	2684 return do_mx_check<double> (*this, mx_inline_any_nan);
7922 935be827eaf8 error for NaN values in & and \| expressions John W. Eaton <jwe@octave.org> parents: 7803 diff changeset	2685 }
2385 170053c0f75e [project @ 1996-10-12 18:23:01 by jwe] jwe parents: 2354 diff changeset	2686
170053c0f75e [project @ 1996-10-12 18:23:01 by jwe] jwe parents: 2354 diff changeset	2687 bool
170053c0f75e [project @ 1996-10-12 18:23:01 by jwe] jwe parents: 2354 diff changeset	2688 Matrix::any_element_is_inf_or_nan (void) const
170053c0f75e [project @ 1996-10-12 18:23:01 by jwe] jwe parents: 2354 diff changeset	2689 {
11010 9478b216752e simplify more array tests Jaroslav Hajek <highegg@gmail.com> parents: 11008 diff changeset	2690 return ! do_mx_check<double> (*this, mx_inline_all_finite);
2385 170053c0f75e [project @ 1996-10-12 18:23:01 by jwe] jwe parents: 2354 diff changeset	2691 }
170053c0f75e [project @ 1996-10-12 18:23:01 by jwe] jwe parents: 2354 diff changeset	2692
170053c0f75e [project @ 1996-10-12 18:23:01 by jwe] jwe parents: 2354 diff changeset	2693 bool
5943 c038c2947ee1 [project @ 2006-08-18 21:27:03 by jwe] jwe parents: 5785 diff changeset	2694 Matrix::any_element_not_one_or_zero (void) const
c038c2947ee1 [project @ 2006-08-18 21:27:03 by jwe] jwe parents: 5785 diff changeset	2695 {
11010 9478b216752e simplify more array tests Jaroslav Hajek <highegg@gmail.com> parents: 11008 diff changeset	2696 return ! test_all (xis_one_or_zero);
5943 c038c2947ee1 [project @ 2006-08-18 21:27:03 by jwe] jwe parents: 5785 diff changeset	2697 }
c038c2947ee1 [project @ 2006-08-18 21:27:03 by jwe] jwe parents: 5785 diff changeset	2698
c038c2947ee1 [project @ 2006-08-18 21:27:03 by jwe] jwe parents: 5785 diff changeset	2699 bool
2385 170053c0f75e [project @ 1996-10-12 18:23:01 by jwe] jwe parents: 2354 diff changeset	2700 Matrix::all_elements_are_int_or_inf_or_nan (void) const
170053c0f75e [project @ 1996-10-12 18:23:01 by jwe] jwe parents: 2354 diff changeset	2701 {
11010 9478b216752e simplify more array tests Jaroslav Hajek <highegg@gmail.com> parents: 11008 diff changeset	2702 return test_all (xis_int_or_inf_or_nan);
2385 170053c0f75e [project @ 1996-10-12 18:23:01 by jwe] jwe parents: 2354 diff changeset	2703 }
170053c0f75e [project @ 1996-10-12 18:23:01 by jwe] jwe parents: 2354 diff changeset	2704
1968 a2e206524aa0 [project @ 1996-02-17 02:54:24 by jwe] jwe parents: 1959 diff changeset	2705 // Return nonzero if any element of M is not an integer. Also extract
a2e206524aa0 [project @ 1996-02-17 02:54:24 by jwe] jwe parents: 1959 diff changeset	2706 // the largest and smallest values and return them in MAX_VAL and MIN_VAL.
a2e206524aa0 [project @ 1996-02-17 02:54:24 by jwe] jwe parents: 1959 diff changeset	2707
2385 170053c0f75e [project @ 1996-10-12 18:23:01 by jwe] jwe parents: 2354 diff changeset	2708 bool
1968 a2e206524aa0 [project @ 1996-02-17 02:54:24 by jwe] jwe parents: 1959 diff changeset	2709 Matrix::all_integers (double& max_val, double& min_val) const
a2e206524aa0 [project @ 1996-02-17 02:54:24 by jwe] jwe parents: 1959 diff changeset	2710 {
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	2711 octave_idx_type nel = nelem ();
4634 79fe96966ca0 [project @ 2003-11-19 21:22:39 by jwe] jwe parents: 4593 diff changeset	2712
79fe96966ca0 [project @ 2003-11-19 21:22:39 by jwe] jwe parents: 4593 diff changeset	2713 if (nel > 0)
1968 a2e206524aa0 [project @ 1996-02-17 02:54:24 by jwe] jwe parents: 1959 diff changeset	2714 {
4634 79fe96966ca0 [project @ 2003-11-19 21:22:39 by jwe] jwe parents: 4593 diff changeset	2715 max_val = elem (0);
79fe96966ca0 [project @ 2003-11-19 21:22:39 by jwe] jwe parents: 4593 diff changeset	2716 min_val = elem (0);
1968 a2e206524aa0 [project @ 1996-02-17 02:54:24 by jwe] jwe parents: 1959 diff changeset	2717 }
a2e206524aa0 [project @ 1996-02-17 02:54:24 by jwe] jwe parents: 1959 diff changeset	2718 else
2385 170053c0f75e [project @ 1996-10-12 18:23:01 by jwe] jwe parents: 2354 diff changeset	2719 return false;
1968 a2e206524aa0 [project @ 1996-02-17 02:54:24 by jwe] jwe parents: 1959 diff changeset	2720
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	2721 for (octave_idx_type i = 0; i < nel; i++)
4634 79fe96966ca0 [project @ 2003-11-19 21:22:39 by jwe] jwe parents: 4593 diff changeset	2722 {
79fe96966ca0 [project @ 2003-11-19 21:22:39 by jwe] jwe parents: 4593 diff changeset	2723 double val = elem (i);
79fe96966ca0 [project @ 2003-11-19 21:22:39 by jwe] jwe parents: 4593 diff changeset	2724
79fe96966ca0 [project @ 2003-11-19 21:22:39 by jwe] jwe parents: 4593 diff changeset	2725 if (val > max_val)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	2726 max_val = val;
4634 79fe96966ca0 [project @ 2003-11-19 21:22:39 by jwe] jwe parents: 4593 diff changeset	2727
79fe96966ca0 [project @ 2003-11-19 21:22:39 by jwe] jwe parents: 4593 diff changeset	2728 if (val < min_val)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	2729 min_val = val;
4634 79fe96966ca0 [project @ 2003-11-19 21:22:39 by jwe] jwe parents: 4593 diff changeset	2730
11010 9478b216752e simplify more array tests Jaroslav Hajek <highegg@gmail.com> parents: 11008 diff changeset	2731 if (! xisinteger (val))
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	2732 return false;
4634 79fe96966ca0 [project @ 2003-11-19 21:22:39 by jwe] jwe parents: 4593 diff changeset	2733 }
2385 170053c0f75e [project @ 1996-10-12 18:23:01 by jwe] jwe parents: 2354 diff changeset	2734
170053c0f75e [project @ 1996-10-12 18:23:01 by jwe] jwe parents: 2354 diff changeset	2735 return true;
1968 a2e206524aa0 [project @ 1996-02-17 02:54:24 by jwe] jwe parents: 1959 diff changeset	2736 }
a2e206524aa0 [project @ 1996-02-17 02:54:24 by jwe] jwe parents: 1959 diff changeset	2737
2385 170053c0f75e [project @ 1996-10-12 18:23:01 by jwe] jwe parents: 2354 diff changeset	2738 bool
1968 a2e206524aa0 [project @ 1996-02-17 02:54:24 by jwe] jwe parents: 1959 diff changeset	2739 Matrix::too_large_for_float (void) const
a2e206524aa0 [project @ 1996-02-17 02:54:24 by jwe] jwe parents: 1959 diff changeset	2740 {
15212 4bbd3bbb8912 reduce code duplication in too_large_for_float array functions John W. Eaton <jwe@octave.org> parents: 15018 diff changeset	2741 return test_any (xtoo_large_for_float);
1968 a2e206524aa0 [project @ 1996-02-17 02:54:24 by jwe] jwe parents: 1959 diff changeset	2742 }
a2e206524aa0 [project @ 1996-02-17 02:54:24 by jwe] jwe parents: 1959 diff changeset	2743
17769 49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	2744 // FIXME: Do these really belong here? Maybe they should be in a base class?
458 38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2745
2832 4dff308e9acc [project @ 1997-03-26 05:16:58 by jwe] jwe parents: 2828 diff changeset	2746 boolMatrix
4015 6476dd85a65f [project @ 2002-08-02 07:59:19 by jwe] jwe parents: 3887 diff changeset	2747 Matrix::all (int dim) const
458 38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2748 {
10362 b47ab50a6aa8 simplify appliers in mx-inlines.cc Jaroslav Hajek <highegg@gmail.com> parents: 10352 diff changeset	2749 return do_mx_red_op<bool, double> (*this, dim, mx_inline_all);
458 38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2750 }
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2751
2832 4dff308e9acc [project @ 1997-03-26 05:16:58 by jwe] jwe parents: 2828 diff changeset	2752 boolMatrix
4015 6476dd85a65f [project @ 2002-08-02 07:59:19 by jwe] jwe parents: 3887 diff changeset	2753 Matrix::any (int dim) const
458 38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2754 {
10362 b47ab50a6aa8 simplify appliers in mx-inlines.cc Jaroslav Hajek <highegg@gmail.com> parents: 10352 diff changeset	2755 return do_mx_red_op<bool, double> (*this, dim, mx_inline_any);
458 38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2756 }
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2757
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2758 Matrix
3723 4c3774db5b3c [project @ 2000-10-12 05:10:08 by jwe] jwe parents: 3585 diff changeset	2759 Matrix::cumprod (int dim) const
458 38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2760 {
10362 b47ab50a6aa8 simplify appliers in mx-inlines.cc Jaroslav Hajek <highegg@gmail.com> parents: 10352 diff changeset	2761 return do_mx_cum_op<double, double> (*this, dim, mx_inline_cumprod);
458 38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2762 }
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2763
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2764 Matrix
3723 4c3774db5b3c [project @ 2000-10-12 05:10:08 by jwe] jwe parents: 3585 diff changeset	2765 Matrix::cumsum (int dim) const
458 38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2766 {
10362 b47ab50a6aa8 simplify appliers in mx-inlines.cc Jaroslav Hajek <highegg@gmail.com> parents: 10352 diff changeset	2767 return do_mx_cum_op<double, double> (*this, dim, mx_inline_cumsum);
458 38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2768 }
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2769
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2770 Matrix
3723 4c3774db5b3c [project @ 2000-10-12 05:10:08 by jwe] jwe parents: 3585 diff changeset	2771 Matrix::prod (int dim) const
458 38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2772 {
10362 b47ab50a6aa8 simplify appliers in mx-inlines.cc Jaroslav Hajek <highegg@gmail.com> parents: 10352 diff changeset	2773 return do_mx_red_op<double, double> (*this, dim, mx_inline_prod);
458 38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2774 }
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2775
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2776 Matrix
3723 4c3774db5b3c [project @ 2000-10-12 05:10:08 by jwe] jwe parents: 3585 diff changeset	2777 Matrix::sum (int dim) const
458 38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2778 {
10362 b47ab50a6aa8 simplify appliers in mx-inlines.cc Jaroslav Hajek <highegg@gmail.com> parents: 10352 diff changeset	2779 return do_mx_red_op<double, double> (*this, dim, mx_inline_sum);
458 38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2780 }
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2781
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2782 Matrix
3723 4c3774db5b3c [project @ 2000-10-12 05:10:08 by jwe] jwe parents: 3585 diff changeset	2783 Matrix::sumsq (int dim) const
458 38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2784 {
10362 b47ab50a6aa8 simplify appliers in mx-inlines.cc Jaroslav Hajek <highegg@gmail.com> parents: 10352 diff changeset	2785 return do_mx_red_op<double, double> (*this, dim, mx_inline_sumsq);
458 38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2786 }
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2787
2385 170053c0f75e [project @ 1996-10-12 18:23:01 by jwe] jwe parents: 2354 diff changeset	2788 Matrix
170053c0f75e [project @ 1996-10-12 18:23:01 by jwe] jwe parents: 2354 diff changeset	2789 Matrix::abs (void) const
170053c0f75e [project @ 1996-10-12 18:23:01 by jwe] jwe parents: 2354 diff changeset	2790 {
10363 a0728e81ed25 improve diag matrix interface & implementation Jaroslav Hajek <highegg@gmail.com> parents: 10362 diff changeset	2791 return do_mx_unary_map<double, double, std::abs> (*this);
2385 170053c0f75e [project @ 1996-10-12 18:23:01 by jwe] jwe parents: 2354 diff changeset	2792 }
170053c0f75e [project @ 1996-10-12 18:23:01 by jwe] jwe parents: 2354 diff changeset	2793
7620 36594d5bbe13 Move diag function into the octave_value class David Bateman <dbateman@free.fr> parents: 7544 diff changeset	2794 Matrix
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	2795 Matrix::diag (octave_idx_type k) const
458 38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2796 {
10350 12884915a8e4 merge MArray classes & improve Array interface Jaroslav Hajek <highegg@gmail.com> parents: 10314 diff changeset	2797 return MArray<double>::diag (k);
458 38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2798 }
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2799
14557 e8e86ae3abbc make diag (x, m, n) return a proper diagonal matrix object (bug #36099) John W. Eaton <jwe@octave.org> parents: 14427 diff changeset	2800 DiagMatrix
e8e86ae3abbc make diag (x, m, n) return a proper diagonal matrix object (bug #36099) John W. Eaton <jwe@octave.org> parents: 14427 diff changeset	2801 Matrix::diag (octave_idx_type m, octave_idx_type n) const
e8e86ae3abbc make diag (x, m, n) return a proper diagonal matrix object (bug #36099) John W. Eaton <jwe@octave.org> parents: 14427 diff changeset	2802 {
e8e86ae3abbc make diag (x, m, n) return a proper diagonal matrix object (bug #36099) John W. Eaton <jwe@octave.org> parents: 14427 diff changeset	2803 DiagMatrix retval;
e8e86ae3abbc make diag (x, m, n) return a proper diagonal matrix object (bug #36099) John W. Eaton <jwe@octave.org> parents: 14427 diff changeset	2804
e8e86ae3abbc make diag (x, m, n) return a proper diagonal matrix object (bug #36099) John W. Eaton <jwe@octave.org> parents: 14427 diff changeset	2805 octave_idx_type nr = rows ();
e8e86ae3abbc make diag (x, m, n) return a proper diagonal matrix object (bug #36099) John W. Eaton <jwe@octave.org> parents: 14427 diff changeset	2806 octave_idx_type nc = cols ();
e8e86ae3abbc make diag (x, m, n) return a proper diagonal matrix object (bug #36099) John W. Eaton <jwe@octave.org> parents: 14427 diff changeset	2807
e8e86ae3abbc make diag (x, m, n) return a proper diagonal matrix object (bug #36099) John W. Eaton <jwe@octave.org> parents: 14427 diff changeset	2808 if (nr == 1 \|\| nc == 1)
e8e86ae3abbc make diag (x, m, n) return a proper diagonal matrix object (bug #36099) John W. Eaton <jwe@octave.org> parents: 14427 diff changeset	2809 retval = DiagMatrix (*this, m, n);
e8e86ae3abbc make diag (x, m, n) return a proper diagonal matrix object (bug #36099) John W. Eaton <jwe@octave.org> parents: 14427 diff changeset	2810 else
e8e86ae3abbc make diag (x, m, n) return a proper diagonal matrix object (bug #36099) John W. Eaton <jwe@octave.org> parents: 14427 diff changeset	2811 (*current_liboctave_error_handler)
e8e86ae3abbc make diag (x, m, n) return a proper diagonal matrix object (bug #36099) John W. Eaton <jwe@octave.org> parents: 14427 diff changeset	2812 ("diag: expecting vector argument");
e8e86ae3abbc make diag (x, m, n) return a proper diagonal matrix object (bug #36099) John W. Eaton <jwe@octave.org> parents: 14427 diff changeset	2813
e8e86ae3abbc make diag (x, m, n) return a proper diagonal matrix object (bug #36099) John W. Eaton <jwe@octave.org> parents: 14427 diff changeset	2814 return retval;
e8e86ae3abbc make diag (x, m, n) return a proper diagonal matrix object (bug #36099) John W. Eaton <jwe@octave.org> parents: 14427 diff changeset	2815 }
e8e86ae3abbc make diag (x, m, n) return a proper diagonal matrix object (bug #36099) John W. Eaton <jwe@octave.org> parents: 14427 diff changeset	2816
458 38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2817 ColumnVector
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2818 Matrix::row_min (void) const
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2819 {
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	2820 Array<octave_idx_type> dummy_idx;
4587 7b957b442818 [project @ 2003-11-10 15:50:39 by jwe] jwe parents: 4574 diff changeset	2821 return row_min (dummy_idx);
458 38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2822 }
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2823
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2824 ColumnVector
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	2825 Matrix::row_min (Array<octave_idx_type>& idx_arg) const
458 38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2826 {
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2827 ColumnVector result;
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2828
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	2829 octave_idx_type nr = rows ();
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	2830 octave_idx_type nc = cols ();
458 38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2831
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2832 if (nr > 0 && nc > 0)
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2833 {
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2834 result.resize (nr);
11574 a83bad07f7e3 attempt better backward compatibility for Array resize functions John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	2835 idx_arg.resize (dim_vector (nr, 1));
458 38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2836
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	2837 for (octave_idx_type i = 0; i < nr; i++)
458 38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2838 {
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	2839 octave_idx_type idx_j;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	2840
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	2841 double tmp_min = octave_NaN;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	2842
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	2843 for (idx_j = 0; idx_j < nc; idx_j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	2844 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	2845 tmp_min = elem (i, idx_j);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	2846
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	2847 if (! xisnan (tmp_min))
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	2848 break;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	2849 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	2850
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	2851 for (octave_idx_type j = idx_j+1; j < nc; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	2852 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	2853 double tmp = elem (i, j);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	2854
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	2855 if (xisnan (tmp))
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	2856 continue;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	2857 else if (tmp < tmp_min)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	2858 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	2859 idx_j = j;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	2860 tmp_min = tmp;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	2861 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	2862 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	2863
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	2864 result.elem (i) = tmp_min;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	2865 idx_arg.elem (i) = xisnan (tmp_min) ? 0 : idx_j;
458 38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2866 }
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2867 }
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2868
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2869 return result;
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2870 }
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2871
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2872 ColumnVector
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2873 Matrix::row_max (void) const
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2874 {
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	2875 Array<octave_idx_type> dummy_idx;
4587 7b957b442818 [project @ 2003-11-10 15:50:39 by jwe] jwe parents: 4574 diff changeset	2876 return row_max (dummy_idx);
458 38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2877 }
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2878
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2879 ColumnVector
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	2880 Matrix::row_max (Array<octave_idx_type>& idx_arg) const
458 38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2881 {
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2882 ColumnVector result;
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2883
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	2884 octave_idx_type nr = rows ();
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	2885 octave_idx_type nc = cols ();
458 38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2886
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2887 if (nr > 0 && nc > 0)
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2888 {
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2889 result.resize (nr);
11574 a83bad07f7e3 attempt better backward compatibility for Array resize functions John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	2890 idx_arg.resize (dim_vector (nr, 1));
458 38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2891
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	2892 for (octave_idx_type i = 0; i < nr; i++)
458 38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2893 {
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	2894 octave_idx_type idx_j;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	2895
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	2896 double tmp_max = octave_NaN;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	2897
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	2898 for (idx_j = 0; idx_j < nc; idx_j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	2899 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	2900 tmp_max = elem (i, idx_j);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	2901
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	2902 if (! xisnan (tmp_max))
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	2903 break;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	2904 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	2905
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	2906 for (octave_idx_type j = idx_j+1; j < nc; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	2907 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	2908 double tmp = elem (i, j);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	2909
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	2910 if (xisnan (tmp))
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	2911 continue;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	2912 else if (tmp > tmp_max)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	2913 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	2914 idx_j = j;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	2915 tmp_max = tmp;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	2916 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	2917 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	2918
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	2919 result.elem (i) = tmp_max;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	2920 idx_arg.elem (i) = xisnan (tmp_max) ? 0 : idx_j;
458 38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2921 }
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2922 }
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2923
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2924 return result;
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2925 }
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2926
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2927 RowVector
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2928 Matrix::column_min (void) const
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2929 {
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	2930 Array<octave_idx_type> dummy_idx;
4587 7b957b442818 [project @ 2003-11-10 15:50:39 by jwe] jwe parents: 4574 diff changeset	2931 return column_min (dummy_idx);
458 38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2932 }
2354 2ce6e1ec9b53 [project @ 1996-08-20 22:44:25 by jwe] jwe parents: 2349 diff changeset	2933
458 38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2934 RowVector
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	2935 Matrix::column_min (Array<octave_idx_type>& idx_arg) const
458 38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2936 {
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2937 RowVector result;
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2938
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	2939 octave_idx_type nr = rows ();
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	2940 octave_idx_type nc = cols ();
458 38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2941
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2942 if (nr > 0 && nc > 0)
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2943 {
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2944 result.resize (nc);
11574 a83bad07f7e3 attempt better backward compatibility for Array resize functions John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	2945 idx_arg.resize (dim_vector (1, nc));
458 38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2946
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	2947 for (octave_idx_type j = 0; j < nc; j++)
458 38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2948 {
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	2949 octave_idx_type idx_i;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	2950
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	2951 double tmp_min = octave_NaN;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	2952
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	2953 for (idx_i = 0; idx_i < nr; idx_i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	2954 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	2955 tmp_min = elem (idx_i, j);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	2956
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	2957 if (! xisnan (tmp_min))
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	2958 break;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	2959 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	2960
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	2961 for (octave_idx_type i = idx_i+1; i < nr; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	2962 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	2963 double tmp = elem (i, j);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	2964
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	2965 if (xisnan (tmp))
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	2966 continue;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	2967 else if (tmp < tmp_min)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	2968 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	2969 idx_i = i;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	2970 tmp_min = tmp;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	2971 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	2972 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	2973
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	2974 result.elem (j) = tmp_min;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	2975 idx_arg.elem (j) = xisnan (tmp_min) ? 0 : idx_i;
458 38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2976 }
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2977 }
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2978
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2979 return result;
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2980 }
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2981
2354 2ce6e1ec9b53 [project @ 1996-08-20 22:44:25 by jwe] jwe parents: 2349 diff changeset	2982 RowVector
2ce6e1ec9b53 [project @ 1996-08-20 22:44:25 by jwe] jwe parents: 2349 diff changeset	2983 Matrix::column_max (void) const
2ce6e1ec9b53 [project @ 1996-08-20 22:44:25 by jwe] jwe parents: 2349 diff changeset	2984 {
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	2985 Array<octave_idx_type> dummy_idx;
4587 7b957b442818 [project @ 2003-11-10 15:50:39 by jwe] jwe parents: 4574 diff changeset	2986 return column_max (dummy_idx);
2354 2ce6e1ec9b53 [project @ 1996-08-20 22:44:25 by jwe] jwe parents: 2349 diff changeset	2987 }
458 38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2988
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2989 RowVector
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	2990 Matrix::column_max (Array<octave_idx_type>& idx_arg) const
458 38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2991 {
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2992 RowVector result;
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2993
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	2994 octave_idx_type nr = rows ();
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	2995 octave_idx_type nc = cols ();
458 38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2996
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2997 if (nr > 0 && nc > 0)
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2998 {
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	2999 result.resize (nc);
11574 a83bad07f7e3 attempt better backward compatibility for Array resize functions John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	3000 idx_arg.resize (dim_vector (1, nc));
458 38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	3001
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	3002 for (octave_idx_type j = 0; j < nc; j++)
458 38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	3003 {
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	3004 octave_idx_type idx_i;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	3005
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	3006 double tmp_max = octave_NaN;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	3007
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	3008 for (idx_i = 0; idx_i < nr; idx_i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	3009 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	3010 tmp_max = elem (idx_i, j);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	3011
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	3012 if (! xisnan (tmp_max))
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	3013 break;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	3014 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	3015
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	3016 for (octave_idx_type i = idx_i+1; i < nr; i++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	3017 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	3018 double tmp = elem (i, j);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	3019
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	3020 if (xisnan (tmp))
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	3021 continue;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	3022 else if (tmp > tmp_max)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	3023 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	3024 idx_i = i;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	3025 tmp_max = tmp;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	3026 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	3027 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	3028
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	3029 result.elem (j) = tmp_max;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	3030 idx_arg.elem (j) = xisnan (tmp_max) ? 0 : idx_i;
458 38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	3031 }
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	3032 }
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	3033
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	3034 return result;
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	3035 }
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	3036
3504 5eef8a2294bd [project @ 2000-02-01 10:06:51 by jwe] jwe parents: 3503 diff changeset	3037 std::ostream&
5eef8a2294bd [project @ 2000-02-01 10:06:51 by jwe] jwe parents: 3503 diff changeset	3038 operator << (std::ostream& os, const Matrix& a)
458 38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	3039 {
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	3040 for (octave_idx_type i = 0; i < a.rows (); i++)
458 38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	3041 {
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	3042 for (octave_idx_type j = 0; j < a.cols (); j++)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	3043 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	3044 os << " ";
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	3045 octave_write_double (os, a.elem (i, j));
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	3046 }
458 38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	3047 os << "\n";
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	3048 }
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	3049 return os;
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	3050 }
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	3051
3504 5eef8a2294bd [project @ 2000-02-01 10:06:51 by jwe] jwe parents: 3503 diff changeset	3052 std::istream&
5eef8a2294bd [project @ 2000-02-01 10:06:51 by jwe] jwe parents: 3503 diff changeset	3053 operator >> (std::istream& is, Matrix& a)
458 38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	3054 {
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	3055 octave_idx_type nr = a.rows ();
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	3056 octave_idx_type nc = a.cols ();
458 38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	3057
8999 dc07bc4157b8 allow empty matrices in stream input operators Jaroslav Hajek <highegg@gmail.com> parents: 8956 diff changeset	3058 if (nr > 0 && nc > 0)
458 38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	3059 {
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	3060 double tmp;
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	3061 for (octave_idx_type i = 0; i < nr; i++)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	3062 for (octave_idx_type j = 0; j < nc; j++)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	3063 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	3064 tmp = octave_read_value<double> (is);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	3065 if (is)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	3066 a.elem (i, j) = tmp;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	3067 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	3068 goto done;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	3069 }
458 38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	3070 }
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	3071
17769 49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	3072 done:
2795 14d07e4a0265 [project @ 1997-03-07 02:18:49 by jwe] jwe parents: 2676 diff changeset	3073
458 38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	3074 return is;
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	3075 }
38cb88095913 [project @ 1994-06-06 00:41:10 by jwe] jwe parents: diff changeset	3076
1819 8b8498bf8ec5 [project @ 1996-01-31 11:29:17 by jwe] jwe parents: 1698 diff changeset	3077 Matrix
8b8498bf8ec5 [project @ 1996-01-31 11:29:17 by jwe] jwe parents: 1698 diff changeset	3078 Givens (double x, double y)
8b8498bf8ec5 [project @ 1996-01-31 11:29:17 by jwe] jwe parents: 1698 diff changeset	3079 {
8b8498bf8ec5 [project @ 1996-01-31 11:29:17 by jwe] jwe parents: 1698 diff changeset	3080 double cc, s, temp_r;
8b8498bf8ec5 [project @ 1996-01-31 11:29:17 by jwe] jwe parents: 1698 diff changeset	3081
3887 7da18459c08b [project @ 2002-04-04 00:44:21 by jwe] jwe parents: 3864 diff changeset	3082 F77_FUNC (dlartg, DLARTG) (x, y, cc, s, temp_r);
1819 8b8498bf8ec5 [project @ 1996-01-31 11:29:17 by jwe] jwe parents: 1698 diff changeset	3083
8b8498bf8ec5 [project @ 1996-01-31 11:29:17 by jwe] jwe parents: 1698 diff changeset	3084 Matrix g (2, 2);
8b8498bf8ec5 [project @ 1996-01-31 11:29:17 by jwe] jwe parents: 1698 diff changeset	3085
8b8498bf8ec5 [project @ 1996-01-31 11:29:17 by jwe] jwe parents: 1698 diff changeset	3086 g.elem (0, 0) = cc;
8b8498bf8ec5 [project @ 1996-01-31 11:29:17 by jwe] jwe parents: 1698 diff changeset	3087 g.elem (1, 1) = cc;
8b8498bf8ec5 [project @ 1996-01-31 11:29:17 by jwe] jwe parents: 1698 diff changeset	3088 g.elem (0, 1) = s;
8b8498bf8ec5 [project @ 1996-01-31 11:29:17 by jwe] jwe parents: 1698 diff changeset	3089 g.elem (1, 0) = -s;
8b8498bf8ec5 [project @ 1996-01-31 11:29:17 by jwe] jwe parents: 1698 diff changeset	3090
8b8498bf8ec5 [project @ 1996-01-31 11:29:17 by jwe] jwe parents: 1698 diff changeset	3091 return g;
8b8498bf8ec5 [project @ 1996-01-31 11:29:17 by jwe] jwe parents: 1698 diff changeset	3092 }
8b8498bf8ec5 [project @ 1996-01-31 11:29:17 by jwe] jwe parents: 1698 diff changeset	3093
8b8498bf8ec5 [project @ 1996-01-31 11:29:17 by jwe] jwe parents: 1698 diff changeset	3094 Matrix
8b8498bf8ec5 [project @ 1996-01-31 11:29:17 by jwe] jwe parents: 1698 diff changeset	3095 Sylvester (const Matrix& a, const Matrix& b, const Matrix& c)
8b8498bf8ec5 [project @ 1996-01-31 11:29:17 by jwe] jwe parents: 1698 diff changeset	3096 {
8b8498bf8ec5 [project @ 1996-01-31 11:29:17 by jwe] jwe parents: 1698 diff changeset	3097 Matrix retval;
8b8498bf8ec5 [project @ 1996-01-31 11:29:17 by jwe] jwe parents: 1698 diff changeset	3098
17769 49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	3099 // FIXME: need to check that a, b, and c are all the same size.
1819 8b8498bf8ec5 [project @ 1996-01-31 11:29:17 by jwe] jwe parents: 1698 diff changeset	3100
8b8498bf8ec5 [project @ 1996-01-31 11:29:17 by jwe] jwe parents: 1698 diff changeset	3101 // Compute Schur decompositions.
8b8498bf8ec5 [project @ 1996-01-31 11:29:17 by jwe] jwe parents: 1698 diff changeset	3102
8b8498bf8ec5 [project @ 1996-01-31 11:29:17 by jwe] jwe parents: 1698 diff changeset	3103 SCHUR as (a, "U");
8b8498bf8ec5 [project @ 1996-01-31 11:29:17 by jwe] jwe parents: 1698 diff changeset	3104 SCHUR bs (b, "U");
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11574 diff changeset	3105
1819 8b8498bf8ec5 [project @ 1996-01-31 11:29:17 by jwe] jwe parents: 1698 diff changeset	3106 // Transform c to new coordinates.
8b8498bf8ec5 [project @ 1996-01-31 11:29:17 by jwe] jwe parents: 1698 diff changeset	3107
8b8498bf8ec5 [project @ 1996-01-31 11:29:17 by jwe] jwe parents: 1698 diff changeset	3108 Matrix ua = as.unitary_matrix ();
8b8498bf8ec5 [project @ 1996-01-31 11:29:17 by jwe] jwe parents: 1698 diff changeset	3109 Matrix sch_a = as.schur_matrix ();
8b8498bf8ec5 [project @ 1996-01-31 11:29:17 by jwe] jwe parents: 1698 diff changeset	3110
8b8498bf8ec5 [project @ 1996-01-31 11:29:17 by jwe] jwe parents: 1698 diff changeset	3111 Matrix ub = bs.unitary_matrix ();
8b8498bf8ec5 [project @ 1996-01-31 11:29:17 by jwe] jwe parents: 1698 diff changeset	3112 Matrix sch_b = bs.schur_matrix ();
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11574 diff changeset	3113
1819 8b8498bf8ec5 [project @ 1996-01-31 11:29:17 by jwe] jwe parents: 1698 diff changeset	3114 Matrix cx = ua.transpose () * c * ub;
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11574 diff changeset	3115
17769 49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	3116 // Solve the sylvester equation, back-transform, and return the solution.
1819 8b8498bf8ec5 [project @ 1996-01-31 11:29:17 by jwe] jwe parents: 1698 diff changeset	3117
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	3118 octave_idx_type a_nr = a.rows ();
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	3119 octave_idx_type b_nr = b.rows ();
1819 8b8498bf8ec5 [project @ 1996-01-31 11:29:17 by jwe] jwe parents: 1698 diff changeset	3120
8b8498bf8ec5 [project @ 1996-01-31 11:29:17 by jwe] jwe parents: 1698 diff changeset	3121 double scale;
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	3122 octave_idx_type info;
1819 8b8498bf8ec5 [project @ 1996-01-31 11:29:17 by jwe] jwe parents: 1698 diff changeset	3123
1950 ab6abe89aaa1 [project @ 1996-02-14 04:36:21 by jwe] jwe parents: 1948 diff changeset	3124 double *pa = sch_a.fortran_vec ();
ab6abe89aaa1 [project @ 1996-02-14 04:36:21 by jwe] jwe parents: 1948 diff changeset	3125 double *pb = sch_b.fortran_vec ();
ab6abe89aaa1 [project @ 1996-02-14 04:36:21 by jwe] jwe parents: 1948 diff changeset	3126 double *px = cx.fortran_vec ();
ab6abe89aaa1 [project @ 1996-02-14 04:36:21 by jwe] jwe parents: 1948 diff changeset	3127
4552 6f3382e08a52 [project @ 2003-10-27 20:38:02 by jwe] jwe parents: 4513 diff changeset	3128 F77_XFCN (dtrsyl, DTRSYL, (F77_CONST_CHAR_ARG2 ("N", 1),
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	3129 F77_CONST_CHAR_ARG2 ("N", 1),
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	3130 1, a_nr, b_nr, pa, a_nr, pb,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	3131 b_nr, px, a_nr, scale, info
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	3132 F77_CHAR_ARG_LEN (1)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	3133 F77_CHAR_ARG_LEN (1)));
1950 ab6abe89aaa1 [project @ 1996-02-14 04:36:21 by jwe] jwe parents: 1948 diff changeset	3134
ab6abe89aaa1 [project @ 1996-02-14 04:36:21 by jwe] jwe parents: 1948 diff changeset	3135
17769 49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	3136 // FIXME: check info?
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11574 diff changeset	3137
7482 29980c6b8604 don't check f77_exception_encountered John W. Eaton <jwe@octave.org> parents: 7478 diff changeset	3138 retval = -uacxub.transpose ();
1819 8b8498bf8ec5 [project @ 1996-01-31 11:29:17 by jwe] jwe parents: 1698 diff changeset	3139
8b8498bf8ec5 [project @ 1996-01-31 11:29:17 by jwe] jwe parents: 1698 diff changeset	3140 return retval;
8b8498bf8ec5 [project @ 1996-01-31 11:29:17 by jwe] jwe parents: 1698 diff changeset	3141 }
8b8498bf8ec5 [project @ 1996-01-31 11:29:17 by jwe] jwe parents: 1698 diff changeset	3142
2828 92826d6e8bd9 [project @ 1997-03-25 23:41:41 by jwe] jwe parents: 2800 diff changeset	3143 // matrix by matrix -> matrix operations
92826d6e8bd9 [project @ 1997-03-25 23:41:41 by jwe] jwe parents: 2800 diff changeset	3144
14427 d07e989686b0 Use Octave coding conventions in liboctave %!test blocks Rik <octave@nomad.inbox5.com> parents: 14138 diff changeset	3145 /*
d07e989686b0 Use Octave coding conventions in liboctave %!test blocks Rik <octave@nomad.inbox5.com> parents: 14138 diff changeset	3146
d07e989686b0 Use Octave coding conventions in liboctave %!test blocks Rik <octave@nomad.inbox5.com> parents: 14138 diff changeset	3147 ## Simple Dot Product, Matrix-Vector and Matrix-Matrix Unit tests
d07e989686b0 Use Octave coding conventions in liboctave %!test blocks Rik <octave@nomad.inbox5.com> parents: 14138 diff changeset	3148 %!assert ([1 2 3] * [ 4 ; 5 ; 6], 32, 1e-14)
d07e989686b0 Use Octave coding conventions in liboctave %!test blocks Rik <octave@nomad.inbox5.com> parents: 14138 diff changeset	3149 %!assert ([1 2 ; 3 4 ] * [5 ; 6], [17 ; 39 ], 1e-14)
d07e989686b0 Use Octave coding conventions in liboctave %!test blocks Rik <octave@nomad.inbox5.com> parents: 14138 diff changeset	3150 %!assert ([1 2 ; 3 4 ] * [5 6 ; 7 8], [19 22; 43 50], 1e-14)
d07e989686b0 Use Octave coding conventions in liboctave %!test blocks Rik <octave@nomad.inbox5.com> parents: 14138 diff changeset	3151
d07e989686b0 Use Octave coding conventions in liboctave %!test blocks Rik <octave@nomad.inbox5.com> parents: 14138 diff changeset	3152 ## Test some simple identities
12992 0413227e407b dMatrix.cc: Fix tests introduced by changeset f217edac2c71. Declare variables Marco atzeri <marco.atzeri@gmail.com> parents: 12986 diff changeset	3153 %!shared M, cv, rv, Mt, rvt
14427 d07e989686b0 Use Octave coding conventions in liboctave %!test blocks Rik <octave@nomad.inbox5.com> parents: 14138 diff changeset	3154 %! M = randn (10,10) + 100*eye (10,10);
12986 f217edac2c71 fix dimension check for A'\B (bug #33997) John W. Eaton <jwe@octave.org> parents: 11586 diff changeset	3155 %! Mt = M';
14427 d07e989686b0 Use Octave coding conventions in liboctave %!test blocks Rik <octave@nomad.inbox5.com> parents: 14138 diff changeset	3156 %! cv = randn (10,1);
d07e989686b0 Use Octave coding conventions in liboctave %!test blocks Rik <octave@nomad.inbox5.com> parents: 14138 diff changeset	3157 %! rv = randn (1,10);
12986 f217edac2c71 fix dimension check for A'\B (bug #33997) John W. Eaton <jwe@octave.org> parents: 11586 diff changeset	3158 %! rvt = rv';
14427 d07e989686b0 Use Octave coding conventions in liboctave %!test blocks Rik <octave@nomad.inbox5.com> parents: 14138 diff changeset	3159 %!assert ([Mcv,Mcv], M*[cv,cv], 1e-13)
d07e989686b0 Use Octave coding conventions in liboctave %!test blocks Rik <octave@nomad.inbox5.com> parents: 14138 diff changeset	3160 %!assert ([M'cv,M'cv], M'*[cv,cv], 1e-13)
d07e989686b0 Use Octave coding conventions in liboctave %!test blocks Rik <octave@nomad.inbox5.com> parents: 14138 diff changeset	3161 %!assert ([rvM;rvM], [rv;rv]*M, 1e-13)
d07e989686b0 Use Octave coding conventions in liboctave %!test blocks Rik <octave@nomad.inbox5.com> parents: 14138 diff changeset	3162 %!assert ([rvM';rvM'], [rv;rv]*M', 1e-13)
d07e989686b0 Use Octave coding conventions in liboctave %!test blocks Rik <octave@nomad.inbox5.com> parents: 14138 diff changeset	3163 %!assert (2rvcv, [rv,rv]*[cv;cv], 1e-13)
d07e989686b0 Use Octave coding conventions in liboctave %!test blocks Rik <octave@nomad.inbox5.com> parents: 14138 diff changeset	3164 %!assert (M'\cv, Mt\cv, 1e-14)
d07e989686b0 Use Octave coding conventions in liboctave %!test blocks Rik <octave@nomad.inbox5.com> parents: 14138 diff changeset	3165 %!assert (M'\rv', Mt\rvt, 1e-14)
d07e989686b0 Use Octave coding conventions in liboctave %!test blocks Rik <octave@nomad.inbox5.com> parents: 14138 diff changeset	3166
6162 b3c425131211 [project @ 2006-11-14 15:33:22 by jwe] jwe parents: 5983 diff changeset	3167 */
b3c425131211 [project @ 2006-11-14 15:33:22 by jwe] jwe parents: 5983 diff changeset	3168
11516 53edbf95fbb6 avoid GCC warnings John W. Eaton <jwe@octave.org> parents: 11130 diff changeset	3169 static inline char
7800 5861b95e9879 support for compound operators, implement trans_mul, mul_trans, herm_mul and mul_herm Jaroslav Hajek <highegg@gmail.com> parents: 7789 diff changeset	3170 get_blas_trans_arg (bool trans)
5861b95e9879 support for compound operators, implement trans_mul, mul_trans, herm_mul and mul_herm Jaroslav Hajek <highegg@gmail.com> parents: 7789 diff changeset	3171 {
11516 53edbf95fbb6 avoid GCC warnings John W. Eaton <jwe@octave.org> parents: 11130 diff changeset	3172 return trans ? 'T' : 'N';
7800 5861b95e9879 support for compound operators, implement trans_mul, mul_trans, herm_mul and mul_herm Jaroslav Hajek <highegg@gmail.com> parents: 7789 diff changeset	3173 }
5861b95e9879 support for compound operators, implement trans_mul, mul_trans, herm_mul and mul_herm Jaroslav Hajek <highegg@gmail.com> parents: 7789 diff changeset	3174
5861b95e9879 support for compound operators, implement trans_mul, mul_trans, herm_mul and mul_herm Jaroslav Hajek <highegg@gmail.com> parents: 7789 diff changeset	3175 // the general GEMM operation
5861b95e9879 support for compound operators, implement trans_mul, mul_trans, herm_mul and mul_herm Jaroslav Hajek <highegg@gmail.com> parents: 7789 diff changeset	3176
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11574 diff changeset	3177 Matrix
12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11574 diff changeset	3178 xgemm (const Matrix& a, const Matrix& b,
9665 1dba57e9d08d use blas_trans_type for xgemm Jaroslav Hajek <highegg@gmail.com> parents: 9662 diff changeset	3179 blas_trans_type transa, blas_trans_type transb)
2828 92826d6e8bd9 [project @ 1997-03-25 23:41:41 by jwe] jwe parents: 2800 diff changeset	3180 {
92826d6e8bd9 [project @ 1997-03-25 23:41:41 by jwe] jwe parents: 2800 diff changeset	3181 Matrix retval;
92826d6e8bd9 [project @ 1997-03-25 23:41:41 by jwe] jwe parents: 2800 diff changeset	3182
18084 8e056300994b Follow coding convention of defining and initializing only 1 variable per line in liboctave. Rik <rik@octave.org> parents: 18083 diff changeset	3183 bool tra = transa != blas_no_trans;
8e056300994b Follow coding convention of defining and initializing only 1 variable per line in liboctave. Rik <rik@octave.org> parents: 18083 diff changeset	3184 bool trb = transb != blas_no_trans;
9665 1dba57e9d08d use blas_trans_type for xgemm Jaroslav Hajek <highegg@gmail.com> parents: 9662 diff changeset	3185
1dba57e9d08d use blas_trans_type for xgemm Jaroslav Hajek <highegg@gmail.com> parents: 9662 diff changeset	3186 octave_idx_type a_nr = tra ? a.cols () : a.rows ();
1dba57e9d08d use blas_trans_type for xgemm Jaroslav Hajek <highegg@gmail.com> parents: 9662 diff changeset	3187 octave_idx_type a_nc = tra ? a.rows () : a.cols ();
1dba57e9d08d use blas_trans_type for xgemm Jaroslav Hajek <highegg@gmail.com> parents: 9662 diff changeset	3188
1dba57e9d08d use blas_trans_type for xgemm Jaroslav Hajek <highegg@gmail.com> parents: 9662 diff changeset	3189 octave_idx_type b_nr = trb ? b.cols () : b.rows ();
1dba57e9d08d use blas_trans_type for xgemm Jaroslav Hajek <highegg@gmail.com> parents: 9662 diff changeset	3190 octave_idx_type b_nc = trb ? b.rows () : b.cols ();
7800 5861b95e9879 support for compound operators, implement trans_mul, mul_trans, herm_mul and mul_herm Jaroslav Hajek <highegg@gmail.com> parents: 7789 diff changeset	3191
5861b95e9879 support for compound operators, implement trans_mul, mul_trans, herm_mul and mul_herm Jaroslav Hajek <highegg@gmail.com> parents: 7789 diff changeset	3192 if (a_nc != b_nr)
5861b95e9879 support for compound operators, implement trans_mul, mul_trans, herm_mul and mul_herm Jaroslav Hajek <highegg@gmail.com> parents: 7789 diff changeset	3193 gripe_nonconformant ("operator *", a_nr, a_nc, b_nr, b_nc);
2828 92826d6e8bd9 [project @ 1997-03-25 23:41:41 by jwe] jwe parents: 2800 diff changeset	3194 else
92826d6e8bd9 [project @ 1997-03-25 23:41:41 by jwe] jwe parents: 2800 diff changeset	3195 {
7800 5861b95e9879 support for compound operators, implement trans_mul, mul_trans, herm_mul and mul_herm Jaroslav Hajek <highegg@gmail.com> parents: 7789 diff changeset	3196 if (a_nr == 0 \|\| a_nc == 0 \|\| b_nc == 0)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	3197 retval = Matrix (a_nr, b_nc, 0.0);
9665 1dba57e9d08d use blas_trans_type for xgemm Jaroslav Hajek <highegg@gmail.com> parents: 9662 diff changeset	3198 else if (a.data () == b.data () && a_nr == b_nc && tra != trb)
7801 776791438957 map symmetric cases to xHERK, xSYRK Jaroslav Hajek <highegg@gmail.com> parents: 7800 diff changeset	3199 {
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	3200 octave_idx_type lda = a.rows ();
7801 776791438957 map symmetric cases to xHERK, xSYRK Jaroslav Hajek <highegg@gmail.com> parents: 7800 diff changeset	3201
9359 be6867ba8104 avoid useless zero initialization when doing matrix multiply Jaroslav Hajek <highegg@gmail.com> parents: 9227 diff changeset	3202 retval = Matrix (a_nr, b_nc);
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	3203 double *c = retval.fortran_vec ();
7801 776791438957 map symmetric cases to xHERK, xSYRK Jaroslav Hajek <highegg@gmail.com> parents: 7800 diff changeset	3204
11516 53edbf95fbb6 avoid GCC warnings John W. Eaton <jwe@octave.org> parents: 11130 diff changeset	3205 const char ctra = get_blas_trans_arg (tra);
7801 776791438957 map symmetric cases to xHERK, xSYRK Jaroslav Hajek <highegg@gmail.com> parents: 7800 diff changeset	3206 F77_XFCN (dsyrk, DSYRK, (F77_CONST_CHAR_ARG2 ("U", 1),
11516 53edbf95fbb6 avoid GCC warnings John W. Eaton <jwe@octave.org> parents: 11130 diff changeset	3207 F77_CONST_CHAR_ARG2 (&ctra, 1),
7801 776791438957 map symmetric cases to xHERK, xSYRK Jaroslav Hajek <highegg@gmail.com> parents: 7800 diff changeset	3208 a_nr, a_nc, 1.0,
776791438957 map symmetric cases to xHERK, xSYRK Jaroslav Hajek <highegg@gmail.com> parents: 7800 diff changeset	3209 a.data (), lda, 0.0, c, a_nr
776791438957 map symmetric cases to xHERK, xSYRK Jaroslav Hajek <highegg@gmail.com> parents: 7800 diff changeset	3210 F77_CHAR_ARG_LEN (1)
776791438957 map symmetric cases to xHERK, xSYRK Jaroslav Hajek <highegg@gmail.com> parents: 7800 diff changeset	3211 F77_CHAR_ARG_LEN (1)));
776791438957 map symmetric cases to xHERK, xSYRK Jaroslav Hajek <highegg@gmail.com> parents: 7800 diff changeset	3212 for (int j = 0; j < a_nr; j++)
776791438957 map symmetric cases to xHERK, xSYRK Jaroslav Hajek <highegg@gmail.com> parents: 7800 diff changeset	3213 for (int i = 0; i < j; i++)
776791438957 map symmetric cases to xHERK, xSYRK Jaroslav Hajek <highegg@gmail.com> parents: 7800 diff changeset	3214 retval.xelem (j,i) = retval.xelem (i,j);
776791438957 map symmetric cases to xHERK, xSYRK Jaroslav Hajek <highegg@gmail.com> parents: 7800 diff changeset	3215
776791438957 map symmetric cases to xHERK, xSYRK Jaroslav Hajek <highegg@gmail.com> parents: 7800 diff changeset	3216 }
2828 92826d6e8bd9 [project @ 1997-03-25 23:41:41 by jwe] jwe parents: 2800 diff changeset	3217 else
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	3218 {
18084 8e056300994b Follow coding convention of defining and initializing only 1 variable per line in liboctave. Rik <rik@octave.org> parents: 18083 diff changeset	3219 octave_idx_type lda = a.rows ();
8e056300994b Follow coding convention of defining and initializing only 1 variable per line in liboctave. Rik <rik@octave.org> parents: 18083 diff changeset	3220 octave_idx_type tda = a.cols ();
8e056300994b Follow coding convention of defining and initializing only 1 variable per line in liboctave. Rik <rik@octave.org> parents: 18083 diff changeset	3221 octave_idx_type ldb = b.rows ();
8e056300994b Follow coding convention of defining and initializing only 1 variable per line in liboctave. Rik <rik@octave.org> parents: 18083 diff changeset	3222 octave_idx_type tdb = b.cols ();
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	3223
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	3224 retval = Matrix (a_nr, b_nc);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	3225 double *c = retval.fortran_vec ();
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	3226
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	3227 if (b_nc == 1)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	3228 {
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	3229 if (a_nr == 1)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	3230 F77_FUNC (xddot, XDDOT) (a_nc, a.data (), 1, b.data (), 1, *c);
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	3231 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	3232 {
11516 53edbf95fbb6 avoid GCC warnings John W. Eaton <jwe@octave.org> parents: 11130 diff changeset	3233 const char ctra = get_blas_trans_arg (tra);
53edbf95fbb6 avoid GCC warnings John W. Eaton <jwe@octave.org> parents: 11130 diff changeset	3234 F77_XFCN (dgemv, DGEMV, (F77_CONST_CHAR_ARG2 (&ctra, 1),
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	3235 lda, tda, 1.0, a.data (), lda,
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	3236 b.data (), 1, 0.0, c, 1
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	3237 F77_CHAR_ARG_LEN (1)));
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	3238 }
5983 ae09df27153f [project @ 2006-09-12 02:15:47 by jwe] jwe parents: 5958 diff changeset	3239 }
7800 5861b95e9879 support for compound operators, implement trans_mul, mul_trans, herm_mul and mul_herm Jaroslav Hajek <highegg@gmail.com> parents: 7789 diff changeset	3240 else if (a_nr == 1)
5861b95e9879 support for compound operators, implement trans_mul, mul_trans, herm_mul and mul_herm Jaroslav Hajek <highegg@gmail.com> parents: 7789 diff changeset	3241 {
11516 53edbf95fbb6 avoid GCC warnings John W. Eaton <jwe@octave.org> parents: 11130 diff changeset	3242 const char crevtrb = get_blas_trans_arg (! trb);
53edbf95fbb6 avoid GCC warnings John W. Eaton <jwe@octave.org> parents: 11130 diff changeset	3243 F77_XFCN (dgemv, DGEMV, (F77_CONST_CHAR_ARG2 (&crevtrb, 1),
7800 5861b95e9879 support for compound operators, implement trans_mul, mul_trans, herm_mul and mul_herm Jaroslav Hajek <highegg@gmail.com> parents: 7789 diff changeset	3244 ldb, tdb, 1.0, b.data (), ldb,
5861b95e9879 support for compound operators, implement trans_mul, mul_trans, herm_mul and mul_herm Jaroslav Hajek <highegg@gmail.com> parents: 7789 diff changeset	3245 a.data (), 1, 0.0, c, 1
5861b95e9879 support for compound operators, implement trans_mul, mul_trans, herm_mul and mul_herm Jaroslav Hajek <highegg@gmail.com> parents: 7789 diff changeset	3246 F77_CHAR_ARG_LEN (1)));
5861b95e9879 support for compound operators, implement trans_mul, mul_trans, herm_mul and mul_herm Jaroslav Hajek <highegg@gmail.com> parents: 7789 diff changeset	3247 }
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	3248 else
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	3249 {
11516 53edbf95fbb6 avoid GCC warnings John W. Eaton <jwe@octave.org> parents: 11130 diff changeset	3250 const char ctra = get_blas_trans_arg (tra);
53edbf95fbb6 avoid GCC warnings John W. Eaton <jwe@octave.org> parents: 11130 diff changeset	3251 const char ctrb = get_blas_trans_arg (trb);
53edbf95fbb6 avoid GCC warnings John W. Eaton <jwe@octave.org> parents: 11130 diff changeset	3252 F77_XFCN (dgemm, DGEMM, (F77_CONST_CHAR_ARG2 (&ctra, 1),
53edbf95fbb6 avoid GCC warnings John W. Eaton <jwe@octave.org> parents: 11130 diff changeset	3253 F77_CONST_CHAR_ARG2 (&ctrb, 1),
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	3254 a_nr, b_nc, a_nc, 1.0, a.data (),
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	3255 lda, b.data (), ldb, 0.0, c, a_nr
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	3256 F77_CHAR_ARG_LEN (1)
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	3257 F77_CHAR_ARG_LEN (1)));
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	3258 }
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	3259 }
2828 92826d6e8bd9 [project @ 1997-03-25 23:41:41 by jwe] jwe parents: 2800 diff changeset	3260 }
92826d6e8bd9 [project @ 1997-03-25 23:41:41 by jwe] jwe parents: 2800 diff changeset	3261
92826d6e8bd9 [project @ 1997-03-25 23:41:41 by jwe] jwe parents: 2800 diff changeset	3262 return retval;
92826d6e8bd9 [project @ 1997-03-25 23:41:41 by jwe] jwe parents: 2800 diff changeset	3263 }
92826d6e8bd9 [project @ 1997-03-25 23:41:41 by jwe] jwe parents: 2800 diff changeset	3264
7800 5861b95e9879 support for compound operators, implement trans_mul, mul_trans, herm_mul and mul_herm Jaroslav Hajek <highegg@gmail.com> parents: 7789 diff changeset	3265 Matrix
5861b95e9879 support for compound operators, implement trans_mul, mul_trans, herm_mul and mul_herm Jaroslav Hajek <highegg@gmail.com> parents: 7789 diff changeset	3266 operator * (const Matrix& a, const Matrix& b)
5861b95e9879 support for compound operators, implement trans_mul, mul_trans, herm_mul and mul_herm Jaroslav Hajek <highegg@gmail.com> parents: 7789 diff changeset	3267 {
9665 1dba57e9d08d use blas_trans_type for xgemm Jaroslav Hajek <highegg@gmail.com> parents: 9662 diff changeset	3268 return xgemm (a, b);
7800 5861b95e9879 support for compound operators, implement trans_mul, mul_trans, herm_mul and mul_herm Jaroslav Hajek <highegg@gmail.com> parents: 7789 diff changeset	3269 }
5861b95e9879 support for compound operators, implement trans_mul, mul_trans, herm_mul and mul_herm Jaroslav Hajek <highegg@gmail.com> parents: 7789 diff changeset	3270
17769 49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	3271 // FIXME: it would be nice to share code among the min/max functions below.
4309 a9560cebae6e [project @ 2003-01-28 23:24:58 by jwe] jwe parents: 4293 diff changeset	3272
a9560cebae6e [project @ 2003-01-28 23:24:58 by jwe] jwe parents: 4293 diff changeset	3273 #define EMPTY_RETURN_CHECK(T) \
a9560cebae6e [project @ 2003-01-28 23:24:58 by jwe] jwe parents: 4293 diff changeset	3274 if (nr == 0 \|\| nc == 0) \
a9560cebae6e [project @ 2003-01-28 23:24:58 by jwe] jwe parents: 4293 diff changeset	3275 return T (nr, nc);
a9560cebae6e [project @ 2003-01-28 23:24:58 by jwe] jwe parents: 4293 diff changeset	3276
a9560cebae6e [project @ 2003-01-28 23:24:58 by jwe] jwe parents: 4293 diff changeset	3277 Matrix
a9560cebae6e [project @ 2003-01-28 23:24:58 by jwe] jwe parents: 4293 diff changeset	3278 min (double d, const Matrix& m)
a9560cebae6e [project @ 2003-01-28 23:24:58 by jwe] jwe parents: 4293 diff changeset	3279 {
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	3280 octave_idx_type nr = m.rows ();
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	3281 octave_idx_type nc = m.columns ();
4309 a9560cebae6e [project @ 2003-01-28 23:24:58 by jwe] jwe parents: 4293 diff changeset	3282
a9560cebae6e [project @ 2003-01-28 23:24:58 by jwe] jwe parents: 4293 diff changeset	3283 EMPTY_RETURN_CHECK (Matrix);
a9560cebae6e [project @ 2003-01-28 23:24:58 by jwe] jwe parents: 4293 diff changeset	3284
a9560cebae6e [project @ 2003-01-28 23:24:58 by jwe] jwe parents: 4293 diff changeset	3285 Matrix result (nr, nc);
a9560cebae6e [project @ 2003-01-28 23:24:58 by jwe] jwe parents: 4293 diff changeset	3286
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	3287 for (octave_idx_type j = 0; j < nc; j++)
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	3288 for (octave_idx_type i = 0; i < nr; i++)
4309 a9560cebae6e [project @ 2003-01-28 23:24:58 by jwe] jwe parents: 4293 diff changeset	3289 {
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	3290 octave_quit ();
18083 938f01339043 maint: Use Octave coding convention for indexing vs. function calls in liboctave/array. Rik <rik@octave.org> parents: 17769 diff changeset	3291 result(i, j) = xmin (d, m(i, j));
4309 a9560cebae6e [project @ 2003-01-28 23:24:58 by jwe] jwe parents: 4293 diff changeset	3292 }
a9560cebae6e [project @ 2003-01-28 23:24:58 by jwe] jwe parents: 4293 diff changeset	3293
a9560cebae6e [project @ 2003-01-28 23:24:58 by jwe] jwe parents: 4293 diff changeset	3294 return result;
a9560cebae6e [project @ 2003-01-28 23:24:58 by jwe] jwe parents: 4293 diff changeset	3295 }
a9560cebae6e [project @ 2003-01-28 23:24:58 by jwe] jwe parents: 4293 diff changeset	3296
a9560cebae6e [project @ 2003-01-28 23:24:58 by jwe] jwe parents: 4293 diff changeset	3297 Matrix
a9560cebae6e [project @ 2003-01-28 23:24:58 by jwe] jwe parents: 4293 diff changeset	3298 min (const Matrix& m, double d)
a9560cebae6e [project @ 2003-01-28 23:24:58 by jwe] jwe parents: 4293 diff changeset	3299 {
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	3300 octave_idx_type nr = m.rows ();
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	3301 octave_idx_type nc = m.columns ();
4309 a9560cebae6e [project @ 2003-01-28 23:24:58 by jwe] jwe parents: 4293 diff changeset	3302
a9560cebae6e [project @ 2003-01-28 23:24:58 by jwe] jwe parents: 4293 diff changeset	3303 EMPTY_RETURN_CHECK (Matrix);
a9560cebae6e [project @ 2003-01-28 23:24:58 by jwe] jwe parents: 4293 diff changeset	3304
a9560cebae6e [project @ 2003-01-28 23:24:58 by jwe] jwe parents: 4293 diff changeset	3305 Matrix result (nr, nc);
a9560cebae6e [project @ 2003-01-28 23:24:58 by jwe] jwe parents: 4293 diff changeset	3306
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	3307 for (octave_idx_type j = 0; j < nc; j++)
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	3308 for (octave_idx_type i = 0; i < nr; i++)
4309 a9560cebae6e [project @ 2003-01-28 23:24:58 by jwe] jwe parents: 4293 diff changeset	3309 {
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	3310 octave_quit ();
18083 938f01339043 maint: Use Octave coding convention for indexing vs. function calls in liboctave/array. Rik <rik@octave.org> parents: 17769 diff changeset	3311 result(i, j) = xmin (m(i, j), d);
4309 a9560cebae6e [project @ 2003-01-28 23:24:58 by jwe] jwe parents: 4293 diff changeset	3312 }
a9560cebae6e [project @ 2003-01-28 23:24:58 by jwe] jwe parents: 4293 diff changeset	3313
a9560cebae6e [project @ 2003-01-28 23:24:58 by jwe] jwe parents: 4293 diff changeset	3314 return result;
a9560cebae6e [project @ 2003-01-28 23:24:58 by jwe] jwe parents: 4293 diff changeset	3315 }
a9560cebae6e [project @ 2003-01-28 23:24:58 by jwe] jwe parents: 4293 diff changeset	3316
a9560cebae6e [project @ 2003-01-28 23:24:58 by jwe] jwe parents: 4293 diff changeset	3317 Matrix
a9560cebae6e [project @ 2003-01-28 23:24:58 by jwe] jwe parents: 4293 diff changeset	3318 min (const Matrix& a, const Matrix& b)
a9560cebae6e [project @ 2003-01-28 23:24:58 by jwe] jwe parents: 4293 diff changeset	3319 {
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	3320 octave_idx_type nr = a.rows ();
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	3321 octave_idx_type nc = a.columns ();
4309 a9560cebae6e [project @ 2003-01-28 23:24:58 by jwe] jwe parents: 4293 diff changeset	3322
a9560cebae6e [project @ 2003-01-28 23:24:58 by jwe] jwe parents: 4293 diff changeset	3323 if (nr != b.rows () \|\| nc != b.columns ())
a9560cebae6e [project @ 2003-01-28 23:24:58 by jwe] jwe parents: 4293 diff changeset	3324 {
a9560cebae6e [project @ 2003-01-28 23:24:58 by jwe] jwe parents: 4293 diff changeset	3325 (*current_liboctave_error_handler)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	3326 ("two-arg min expecting args of same size");
4309 a9560cebae6e [project @ 2003-01-28 23:24:58 by jwe] jwe parents: 4293 diff changeset	3327 return Matrix ();
a9560cebae6e [project @ 2003-01-28 23:24:58 by jwe] jwe parents: 4293 diff changeset	3328 }
a9560cebae6e [project @ 2003-01-28 23:24:58 by jwe] jwe parents: 4293 diff changeset	3329
a9560cebae6e [project @ 2003-01-28 23:24:58 by jwe] jwe parents: 4293 diff changeset	3330 EMPTY_RETURN_CHECK (Matrix);
a9560cebae6e [project @ 2003-01-28 23:24:58 by jwe] jwe parents: 4293 diff changeset	3331
a9560cebae6e [project @ 2003-01-28 23:24:58 by jwe] jwe parents: 4293 diff changeset	3332 Matrix result (nr, nc);
a9560cebae6e [project @ 2003-01-28 23:24:58 by jwe] jwe parents: 4293 diff changeset	3333
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	3334 for (octave_idx_type j = 0; j < nc; j++)
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	3335 for (octave_idx_type i = 0; i < nr; i++)
4309 a9560cebae6e [project @ 2003-01-28 23:24:58 by jwe] jwe parents: 4293 diff changeset	3336 {
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	3337 octave_quit ();
18083 938f01339043 maint: Use Octave coding convention for indexing vs. function calls in liboctave/array. Rik <rik@octave.org> parents: 17769 diff changeset	3338 result(i, j) = xmin (a(i, j), b(i, j));
4309 a9560cebae6e [project @ 2003-01-28 23:24:58 by jwe] jwe parents: 4293 diff changeset	3339 }
a9560cebae6e [project @ 2003-01-28 23:24:58 by jwe] jwe parents: 4293 diff changeset	3340
a9560cebae6e [project @ 2003-01-28 23:24:58 by jwe] jwe parents: 4293 diff changeset	3341 return result;
a9560cebae6e [project @ 2003-01-28 23:24:58 by jwe] jwe parents: 4293 diff changeset	3342 }
a9560cebae6e [project @ 2003-01-28 23:24:58 by jwe] jwe parents: 4293 diff changeset	3343
a9560cebae6e [project @ 2003-01-28 23:24:58 by jwe] jwe parents: 4293 diff changeset	3344 Matrix
a9560cebae6e [project @ 2003-01-28 23:24:58 by jwe] jwe parents: 4293 diff changeset	3345 max (double d, const Matrix& m)
a9560cebae6e [project @ 2003-01-28 23:24:58 by jwe] jwe parents: 4293 diff changeset	3346 {
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	3347 octave_idx_type nr = m.rows ();
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	3348 octave_idx_type nc = m.columns ();
4309 a9560cebae6e [project @ 2003-01-28 23:24:58 by jwe] jwe parents: 4293 diff changeset	3349
a9560cebae6e [project @ 2003-01-28 23:24:58 by jwe] jwe parents: 4293 diff changeset	3350 EMPTY_RETURN_CHECK (Matrix);
a9560cebae6e [project @ 2003-01-28 23:24:58 by jwe] jwe parents: 4293 diff changeset	3351
a9560cebae6e [project @ 2003-01-28 23:24:58 by jwe] jwe parents: 4293 diff changeset	3352 Matrix result (nr, nc);
a9560cebae6e [project @ 2003-01-28 23:24:58 by jwe] jwe parents: 4293 diff changeset	3353
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	3354 for (octave_idx_type j = 0; j < nc; j++)
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	3355 for (octave_idx_type i = 0; i < nr; i++)
4309 a9560cebae6e [project @ 2003-01-28 23:24:58 by jwe] jwe parents: 4293 diff changeset	3356 {
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	3357 octave_quit ();
18083 938f01339043 maint: Use Octave coding convention for indexing vs. function calls in liboctave/array. Rik <rik@octave.org> parents: 17769 diff changeset	3358 result(i, j) = xmax (d, m(i, j));
4309 a9560cebae6e [project @ 2003-01-28 23:24:58 by jwe] jwe parents: 4293 diff changeset	3359 }
a9560cebae6e [project @ 2003-01-28 23:24:58 by jwe] jwe parents: 4293 diff changeset	3360
a9560cebae6e [project @ 2003-01-28 23:24:58 by jwe] jwe parents: 4293 diff changeset	3361 return result;
a9560cebae6e [project @ 2003-01-28 23:24:58 by jwe] jwe parents: 4293 diff changeset	3362 }
a9560cebae6e [project @ 2003-01-28 23:24:58 by jwe] jwe parents: 4293 diff changeset	3363
a9560cebae6e [project @ 2003-01-28 23:24:58 by jwe] jwe parents: 4293 diff changeset	3364 Matrix
a9560cebae6e [project @ 2003-01-28 23:24:58 by jwe] jwe parents: 4293 diff changeset	3365 max (const Matrix& m, double d)
a9560cebae6e [project @ 2003-01-28 23:24:58 by jwe] jwe parents: 4293 diff changeset	3366 {
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	3367 octave_idx_type nr = m.rows ();
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	3368 octave_idx_type nc = m.columns ();
4309 a9560cebae6e [project @ 2003-01-28 23:24:58 by jwe] jwe parents: 4293 diff changeset	3369
a9560cebae6e [project @ 2003-01-28 23:24:58 by jwe] jwe parents: 4293 diff changeset	3370 EMPTY_RETURN_CHECK (Matrix);
a9560cebae6e [project @ 2003-01-28 23:24:58 by jwe] jwe parents: 4293 diff changeset	3371
a9560cebae6e [project @ 2003-01-28 23:24:58 by jwe] jwe parents: 4293 diff changeset	3372 Matrix result (nr, nc);
a9560cebae6e [project @ 2003-01-28 23:24:58 by jwe] jwe parents: 4293 diff changeset	3373
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	3374 for (octave_idx_type j = 0; j < nc; j++)
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	3375 for (octave_idx_type i = 0; i < nr; i++)
4309 a9560cebae6e [project @ 2003-01-28 23:24:58 by jwe] jwe parents: 4293 diff changeset	3376 {
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	3377 octave_quit ();
18083 938f01339043 maint: Use Octave coding convention for indexing vs. function calls in liboctave/array. Rik <rik@octave.org> parents: 17769 diff changeset	3378 result(i, j) = xmax (m(i, j), d);
4309 a9560cebae6e [project @ 2003-01-28 23:24:58 by jwe] jwe parents: 4293 diff changeset	3379 }
a9560cebae6e [project @ 2003-01-28 23:24:58 by jwe] jwe parents: 4293 diff changeset	3380
a9560cebae6e [project @ 2003-01-28 23:24:58 by jwe] jwe parents: 4293 diff changeset	3381 return result;
a9560cebae6e [project @ 2003-01-28 23:24:58 by jwe] jwe parents: 4293 diff changeset	3382 }
a9560cebae6e [project @ 2003-01-28 23:24:58 by jwe] jwe parents: 4293 diff changeset	3383
a9560cebae6e [project @ 2003-01-28 23:24:58 by jwe] jwe parents: 4293 diff changeset	3384 Matrix
a9560cebae6e [project @ 2003-01-28 23:24:58 by jwe] jwe parents: 4293 diff changeset	3385 max (const Matrix& a, const Matrix& b)
a9560cebae6e [project @ 2003-01-28 23:24:58 by jwe] jwe parents: 4293 diff changeset	3386 {
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	3387 octave_idx_type nr = a.rows ();
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	3388 octave_idx_type nc = a.columns ();
4309 a9560cebae6e [project @ 2003-01-28 23:24:58 by jwe] jwe parents: 4293 diff changeset	3389
a9560cebae6e [project @ 2003-01-28 23:24:58 by jwe] jwe parents: 4293 diff changeset	3390 if (nr != b.rows () \|\| nc != b.columns ())
a9560cebae6e [project @ 2003-01-28 23:24:58 by jwe] jwe parents: 4293 diff changeset	3391 {
a9560cebae6e [project @ 2003-01-28 23:24:58 by jwe] jwe parents: 4293 diff changeset	3392 (*current_liboctave_error_handler)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	3393 ("two-arg max expecting args of same size");
4309 a9560cebae6e [project @ 2003-01-28 23:24:58 by jwe] jwe parents: 4293 diff changeset	3394 return Matrix ();
a9560cebae6e [project @ 2003-01-28 23:24:58 by jwe] jwe parents: 4293 diff changeset	3395 }
a9560cebae6e [project @ 2003-01-28 23:24:58 by jwe] jwe parents: 4293 diff changeset	3396
a9560cebae6e [project @ 2003-01-28 23:24:58 by jwe] jwe parents: 4293 diff changeset	3397 EMPTY_RETURN_CHECK (Matrix);
a9560cebae6e [project @ 2003-01-28 23:24:58 by jwe] jwe parents: 4293 diff changeset	3398
a9560cebae6e [project @ 2003-01-28 23:24:58 by jwe] jwe parents: 4293 diff changeset	3399 Matrix result (nr, nc);
a9560cebae6e [project @ 2003-01-28 23:24:58 by jwe] jwe parents: 4293 diff changeset	3400
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	3401 for (octave_idx_type j = 0; j < nc; j++)
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	3402 for (octave_idx_type i = 0; i < nr; i++)
4309 a9560cebae6e [project @ 2003-01-28 23:24:58 by jwe] jwe parents: 4293 diff changeset	3403 {
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10213 diff changeset	3404 octave_quit ();
18083 938f01339043 maint: Use Octave coding convention for indexing vs. function calls in liboctave/array. Rik <rik@octave.org> parents: 17769 diff changeset	3405 result(i, j) = xmax (a(i, j), b(i, j));
4309 a9560cebae6e [project @ 2003-01-28 23:24:58 by jwe] jwe parents: 4293 diff changeset	3406 }
a9560cebae6e [project @ 2003-01-28 23:24:58 by jwe] jwe parents: 4293 diff changeset	3407
a9560cebae6e [project @ 2003-01-28 23:24:58 by jwe] jwe parents: 4293 diff changeset	3408 return result;
a9560cebae6e [project @ 2003-01-28 23:24:58 by jwe] jwe parents: 4293 diff changeset	3409 }
a9560cebae6e [project @ 2003-01-28 23:24:58 by jwe] jwe parents: 4293 diff changeset	3410
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11574 diff changeset	3411 Matrix linspace (const ColumnVector& x1,
12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11574 diff changeset	3412 const ColumnVector& x2,
9653 e087d7c77ff9 improve linspace in liboctave Jaroslav Hajek <highegg@gmail.com> parents: 9601 diff changeset	3413 octave_idx_type n)
e087d7c77ff9 improve linspace in liboctave Jaroslav Hajek <highegg@gmail.com> parents: 9601 diff changeset	3414
e087d7c77ff9 improve linspace in liboctave Jaroslav Hajek <highegg@gmail.com> parents: 9601 diff changeset	3415 {
e087d7c77ff9 improve linspace in liboctave Jaroslav Hajek <highegg@gmail.com> parents: 9601 diff changeset	3416 if (n < 1) n = 1;
e087d7c77ff9 improve linspace in liboctave Jaroslav Hajek <highegg@gmail.com> parents: 9601 diff changeset	3417
e087d7c77ff9 improve linspace in liboctave Jaroslav Hajek <highegg@gmail.com> parents: 9601 diff changeset	3418 octave_idx_type m = x1.length ();
e087d7c77ff9 improve linspace in liboctave Jaroslav Hajek <highegg@gmail.com> parents: 9601 diff changeset	3419
e087d7c77ff9 improve linspace in liboctave Jaroslav Hajek <highegg@gmail.com> parents: 9601 diff changeset	3420 if (x2.length () != m)
17769 49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	3421 (*current_liboctave_error_handler)
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	3422 ("linspace: vectors must be of equal length");
9653 e087d7c77ff9 improve linspace in liboctave Jaroslav Hajek <highegg@gmail.com> parents: 9601 diff changeset	3423
e087d7c77ff9 improve linspace in liboctave Jaroslav Hajek <highegg@gmail.com> parents: 9601 diff changeset	3424 NoAlias<Matrix> retval;
e087d7c77ff9 improve linspace in liboctave Jaroslav Hajek <highegg@gmail.com> parents: 9601 diff changeset	3425
e087d7c77ff9 improve linspace in liboctave Jaroslav Hajek <highegg@gmail.com> parents: 9601 diff changeset	3426 retval.clear (m, n);
e087d7c77ff9 improve linspace in liboctave Jaroslav Hajek <highegg@gmail.com> parents: 9601 diff changeset	3427 for (octave_idx_type i = 0; i < m; i++)
e087d7c77ff9 improve linspace in liboctave Jaroslav Hajek <highegg@gmail.com> parents: 9601 diff changeset	3428 retval(i, 0) = x1(i);
e087d7c77ff9 improve linspace in liboctave Jaroslav Hajek <highegg@gmail.com> parents: 9601 diff changeset	3429
e087d7c77ff9 improve linspace in liboctave Jaroslav Hajek <highegg@gmail.com> parents: 9601 diff changeset	3430 // The last column is not needed while using delta.
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11574 diff changeset	3431 double *delta = &retval(0, n-1);
9653 e087d7c77ff9 improve linspace in liboctave Jaroslav Hajek <highegg@gmail.com> parents: 9601 diff changeset	3432 for (octave_idx_type i = 0; i < m; i++)
e087d7c77ff9 improve linspace in liboctave Jaroslav Hajek <highegg@gmail.com> parents: 9601 diff changeset	3433 delta[i] = (x2(i) - x1(i)) / (n - 1);
e087d7c77ff9 improve linspace in liboctave Jaroslav Hajek <highegg@gmail.com> parents: 9601 diff changeset	3434
e087d7c77ff9 improve linspace in liboctave Jaroslav Hajek <highegg@gmail.com> parents: 9601 diff changeset	3435 for (octave_idx_type j = 1; j < n-1; j++)
e087d7c77ff9 improve linspace in liboctave Jaroslav Hajek <highegg@gmail.com> parents: 9601 diff changeset	3436 for (octave_idx_type i = 0; i < m; i++)
9658 3429c956de6f extend linspace & fix up liboctave rewrite Jaroslav Hajek <highegg@gmail.com> parents: 9653 diff changeset	3437 retval(i, j) = x1(i) + j*delta[i];
9653 e087d7c77ff9 improve linspace in liboctave Jaroslav Hajek <highegg@gmail.com> parents: 9601 diff changeset	3438
e087d7c77ff9 improve linspace in liboctave Jaroslav Hajek <highegg@gmail.com> parents: 9601 diff changeset	3439 for (octave_idx_type i = 0; i < m; i++)
e087d7c77ff9 improve linspace in liboctave Jaroslav Hajek <highegg@gmail.com> parents: 9601 diff changeset	3440 retval(i, n-1) = x2(i);
e087d7c77ff9 improve linspace in liboctave Jaroslav Hajek <highegg@gmail.com> parents: 9601 diff changeset	3441
e087d7c77ff9 improve linspace in liboctave Jaroslav Hajek <highegg@gmail.com> parents: 9601 diff changeset	3442 return retval;
e087d7c77ff9 improve linspace in liboctave Jaroslav Hajek <highegg@gmail.com> parents: 9601 diff changeset	3443 }
e087d7c77ff9 improve linspace in liboctave Jaroslav Hajek <highegg@gmail.com> parents: 9601 diff changeset	3444
9578 7dafdb8b062f refactor comparison ops implementations Jaroslav Hajek <highegg@gmail.com> parents: 9553 diff changeset	3445 MS_CMP_OPS (Matrix, double)
9550 3d6a9aea2aea refactor binary & bool ops in liboctave Jaroslav Hajek <highegg@gmail.com> parents: 9528 diff changeset	3446 MS_BOOL_OPS (Matrix, double)
2870 3241d0057e78 [project @ 1997-04-19 01:21:29 by jwe] jwe parents: 2847 diff changeset	3447
9578 7dafdb8b062f refactor comparison ops implementations Jaroslav Hajek <highegg@gmail.com> parents: 9553 diff changeset	3448 SM_CMP_OPS (double, Matrix)
9550 3d6a9aea2aea refactor binary & bool ops in liboctave Jaroslav Hajek <highegg@gmail.com> parents: 9528 diff changeset	3449 SM_BOOL_OPS (double, Matrix)
2870 3241d0057e78 [project @ 1997-04-19 01:21:29 by jwe] jwe parents: 2847 diff changeset	3450
9578 7dafdb8b062f refactor comparison ops implementations Jaroslav Hajek <highegg@gmail.com> parents: 9553 diff changeset	3451 MM_CMP_OPS (Matrix, Matrix)
9550 3d6a9aea2aea refactor binary & bool ops in liboctave Jaroslav Hajek <highegg@gmail.com> parents: 9528 diff changeset	3452 MM_BOOL_OPS (Matrix, Matrix)

Mercurial > hg > octave-nkf

annotate liboctave/array/dMatrix.cc @ 19040:479d1d3cb5c3