octave-lyh: liboctave/fMatrix.cc annotate

annotate liboctave/fMatrix.cc @ 7875:bff8dbc1be11

mlock: doc fix

author	John W. Eaton <jwe@octave.org>
date	Fri, 06 Jun 2008 11:35:10 -0400
parents	a0c550b22e61
children	935be827eaf8

rev	line source
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1 // Matrix manipulations.
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2 /*
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	4 Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002,
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	5 2003, 2004, 2005, 2006, 2007 John W. Eaton
7804 a0c550b22e61 compound ops for float matrices Jaroslav Hajek <highegg@gmail.com> parents: 7797 diff changeset	6 Copyright (C) 2008 Jaroslav Hajek
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	7
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	8 This file is part of Octave.
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	9
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	10 Octave is free software; you can redistribute it and/or modify it
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	11 under the terms of the GNU General Public License as published by the
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	12 Free Software Foundation; either version 3 of the License, or (at your
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	13 option) any later version.
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	14
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	15 Octave is distributed in the hope that it will be useful, but WITHOUT
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	16 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	17 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	18 for more details.
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	19
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	20 You should have received a copy of the GNU General Public License
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	21 along with Octave; see the file COPYING. If not, see
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	22 <http://www.gnu.org/licenses/>.
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	23
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	24 */
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	25
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	26 #ifdef HAVE_CONFIG_H
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	27 #include <config.h>
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	28 #endif
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	29
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	30 #include <cfloat>
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	31
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	32 #include <iostream>
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	33 #include <vector>
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	34
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	35 #include "Array-util.h"
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	36 #include "byte-swap.h"
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	37 #include "fMatrix.h"
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	38 #include "floatDET.h"
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	39 #include "floatSCHUR.h"
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	40 #include "floatSVD.h"
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	41 #include "floatCHOL.h"
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	42 #include "f77-fcn.h"
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	43 #include "functor.h"
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	44 #include "lo-error.h"
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	45 #include "lo-ieee.h"
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	46 #include "lo-mappers.h"
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	47 #include "lo-utils.h"
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	48 #include "mx-base.h"
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	49 #include "mx-fm-fdm.h"
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	50 #include "mx-fdm-fm.h"
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	51 #include "mx-inlines.cc"
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	52 #include "oct-cmplx.h"
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	53 #include "quit.h"
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	54
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	55 #if defined (HAVE_FFTW3)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	56 #include "oct-fftw.h"
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	57 #endif
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	58
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	59 // Fortran functions we call.
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	60
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	61 extern "C"
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	62 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	63 F77_RET_T
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	64 F77_FUNC (xilaenv, XILAENV) (const octave_idx_type&, F77_CONST_CHAR_ARG_DECL,
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	65 F77_CONST_CHAR_ARG_DECL,
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	66 const octave_idx_type&, const octave_idx_type&,
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	67 const octave_idx_type&, const octave_idx_type&,
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	68 octave_idx_type&
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	69 F77_CHAR_ARG_LEN_DECL F77_CHAR_ARG_LEN_DECL);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	70
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	71 F77_RET_T
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	72 F77_FUNC (sgebal, SGEBAL) (F77_CONST_CHAR_ARG_DECL,
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	73 const octave_idx_type&, float*, const octave_idx_type&, octave_idx_type&,
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	74 octave_idx_type&, float*, octave_idx_type&
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	75 F77_CHAR_ARG_LEN_DECL);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	76
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	77 F77_RET_T
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	78 F77_FUNC (sgebak, SGEBAK) (F77_CONST_CHAR_ARG_DECL,
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	79 F77_CONST_CHAR_ARG_DECL,
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	80 const octave_idx_type&, const octave_idx_type&, const octave_idx_type&, float*,
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	81 const octave_idx_type&, float*, const octave_idx_type&, octave_idx_type&
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	82 F77_CHAR_ARG_LEN_DECL
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	83 F77_CHAR_ARG_LEN_DECL);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	84
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	85
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	86 F77_RET_T
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	87 F77_FUNC (sgemm, SGEMM) (F77_CONST_CHAR_ARG_DECL,
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	88 F77_CONST_CHAR_ARG_DECL,
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	89 const octave_idx_type&, const octave_idx_type&, const octave_idx_type&,
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	90 const float&, const float*, const octave_idx_type&,
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	91 const float*, const octave_idx_type&, const float&,
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	92 float*, const octave_idx_type&
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	93 F77_CHAR_ARG_LEN_DECL
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	94 F77_CHAR_ARG_LEN_DECL);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	95
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	96 F77_RET_T
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	97 F77_FUNC (sgemv, SGEMV) (F77_CONST_CHAR_ARG_DECL,
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	98 const octave_idx_type&, const octave_idx_type&, const float&,
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	99 const float, const octave_idx_type&, const float,
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	100 const octave_idx_type&, const float&, float*,
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	101 const octave_idx_type&
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	102 F77_CHAR_ARG_LEN_DECL);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	103
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	104 F77_RET_T
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	105 F77_FUNC (xsdot, XSDOT) (const octave_idx_type&, const float*, const octave_idx_type&,
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	106 const float*, const octave_idx_type&, float&);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	107
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	108 F77_RET_T
7804 a0c550b22e61 compound ops for float matrices Jaroslav Hajek <highegg@gmail.com> parents: 7797 diff changeset	109 F77_FUNC (ssyrk, SSYRK) (F77_CONST_CHAR_ARG_DECL,
a0c550b22e61 compound ops for float matrices Jaroslav Hajek <highegg@gmail.com> parents: 7797 diff changeset	110 F77_CONST_CHAR_ARG_DECL,
a0c550b22e61 compound ops for float matrices Jaroslav Hajek <highegg@gmail.com> parents: 7797 diff changeset	111 const octave_idx_type&, const octave_idx_type&,
a0c550b22e61 compound ops for float matrices Jaroslav Hajek <highegg@gmail.com> parents: 7797 diff changeset	112 const float&, const float*, const octave_idx_type&,
a0c550b22e61 compound ops for float matrices Jaroslav Hajek <highegg@gmail.com> parents: 7797 diff changeset	113 const float&, float*, const octave_idx_type&
a0c550b22e61 compound ops for float matrices Jaroslav Hajek <highegg@gmail.com> parents: 7797 diff changeset	114 F77_CHAR_ARG_LEN_DECL
a0c550b22e61 compound ops for float matrices Jaroslav Hajek <highegg@gmail.com> parents: 7797 diff changeset	115 F77_CHAR_ARG_LEN_DECL);
a0c550b22e61 compound ops for float matrices Jaroslav Hajek <highegg@gmail.com> parents: 7797 diff changeset	116
a0c550b22e61 compound ops for float matrices Jaroslav Hajek <highegg@gmail.com> parents: 7797 diff changeset	117 F77_RET_T
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	118 F77_FUNC (sgetrf, SGETRF) (const octave_idx_type&, const octave_idx_type&, float*, const octave_idx_type&,
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	119 octave_idx_type*, octave_idx_type&);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	120
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	121 F77_RET_T
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	122 F77_FUNC (sgetrs, SGETRS) (F77_CONST_CHAR_ARG_DECL, const octave_idx_type&, const octave_idx_type&,
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	123 const float*, const octave_idx_type&,
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	124 const octave_idx_type, float, const octave_idx_type&, octave_idx_type&
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	125 F77_CHAR_ARG_LEN_DECL);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	126
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	127 F77_RET_T
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	128 F77_FUNC (sgetri, SGETRI) (const octave_idx_type&, float, const octave_idx_type&, const octave_idx_type,
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	129 float*, const octave_idx_type&, octave_idx_type&);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	130
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	131 F77_RET_T
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	132 F77_FUNC (sgecon, SGECON) (F77_CONST_CHAR_ARG_DECL, const octave_idx_type&, float*,
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	133 const octave_idx_type&, const float&, float&,
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	134 float, octave_idx_type, octave_idx_type&
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	135 F77_CHAR_ARG_LEN_DECL);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	136
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	137 F77_RET_T
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	138 F77_FUNC (sgelsy, SGELSY) (const octave_idx_type&, const octave_idx_type&, const octave_idx_type&,
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	139 float, const octave_idx_type&, float,
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	140 const octave_idx_type&, octave_idx_type*, float&, octave_idx_type&,
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	141 float*, const octave_idx_type&, octave_idx_type&);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	142
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	143 F77_RET_T
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	144 F77_FUNC (sgelsd, SGELSD) (const octave_idx_type&, const octave_idx_type&, const octave_idx_type&,
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	145 float, const octave_idx_type&, float,
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	146 const octave_idx_type&, float*, float&, octave_idx_type&,
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	147 float, const octave_idx_type&, octave_idx_type,
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	148 octave_idx_type&);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	149
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	150 F77_RET_T
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	151 F77_FUNC (spotrf, SPOTRF) (F77_CONST_CHAR_ARG_DECL, const octave_idx_type&,
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	152 float *, const octave_idx_type&,
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	153 octave_idx_type& F77_CHAR_ARG_LEN_DECL);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	154
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	155 F77_RET_T
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	156 F77_FUNC (spocon, SPOCON) (F77_CONST_CHAR_ARG_DECL, const octave_idx_type&,
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	157 float*, const octave_idx_type&, const float&,
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	158 float&, float, octave_idx_type,
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	159 octave_idx_type& F77_CHAR_ARG_LEN_DECL);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	160 F77_RET_T
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	161 F77_FUNC (spotrs, SPOTRS) (F77_CONST_CHAR_ARG_DECL, const octave_idx_type&,
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	162 const octave_idx_type&, const float*,
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	163 const octave_idx_type&, float*,
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	164 const octave_idx_type&, octave_idx_type&
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	165 F77_CHAR_ARG_LEN_DECL);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	166
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	167 F77_RET_T
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	168 F77_FUNC (strtri, STRTRI) (F77_CONST_CHAR_ARG_DECL, F77_CONST_CHAR_ARG_DECL,
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	169 const octave_idx_type&, const float*,
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	170 const octave_idx_type&, octave_idx_type&
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	171 F77_CHAR_ARG_LEN_DECL
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	172 F77_CHAR_ARG_LEN_DECL);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	173 F77_RET_T
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	174 F77_FUNC (strcon, STRCON) (F77_CONST_CHAR_ARG_DECL, F77_CONST_CHAR_ARG_DECL,
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	175 F77_CONST_CHAR_ARG_DECL, const octave_idx_type&,
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	176 const float*, const octave_idx_type&, float&,
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	177 float, octave_idx_type, octave_idx_type&
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	178 F77_CHAR_ARG_LEN_DECL
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	179 F77_CHAR_ARG_LEN_DECL
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	180 F77_CHAR_ARG_LEN_DECL);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	181 F77_RET_T
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	182 F77_FUNC (strtrs, STRTRS) (F77_CONST_CHAR_ARG_DECL, F77_CONST_CHAR_ARG_DECL,
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	183 F77_CONST_CHAR_ARG_DECL, const octave_idx_type&,
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	184 const octave_idx_type&, const float*,
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	185 const octave_idx_type&, float*,
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	186 const octave_idx_type&, octave_idx_type&
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	187 F77_CHAR_ARG_LEN_DECL
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	188 F77_CHAR_ARG_LEN_DECL
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	189 F77_CHAR_ARG_LEN_DECL);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	190
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	191 // Note that the original complex fft routines were not written for
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	192 // float complex arguments. They have been modified by adding an
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	193 // implicit float precision (a-h,o-z) statement at the beginning of
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	194 // each subroutine.
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	195
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	196 F77_RET_T
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	197 F77_FUNC (cffti, CFFTI) (const octave_idx_type&, FloatComplex*);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	198
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	199 F77_RET_T
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	200 F77_FUNC (cfftf, CFFTF) (const octave_idx_type&, FloatComplex, FloatComplex);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	201
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	202 F77_RET_T
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	203 F77_FUNC (cfftb, CFFTB) (const octave_idx_type&, FloatComplex, FloatComplex);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	204
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	205 F77_RET_T
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	206 F77_FUNC (slartg, SLARTG) (const float&, const float&, float&,
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	207 float&, float&);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	208
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	209 F77_RET_T
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	210 F77_FUNC (strsyl, STRSYL) (F77_CONST_CHAR_ARG_DECL,
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	211 F77_CONST_CHAR_ARG_DECL,
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	212 const octave_idx_type&, const octave_idx_type&, const octave_idx_type&,
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	213 const float, const octave_idx_type&, const float,
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	214 const octave_idx_type&, const float*, const octave_idx_type&,
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	215 float&, octave_idx_type&
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	216 F77_CHAR_ARG_LEN_DECL
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	217 F77_CHAR_ARG_LEN_DECL);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	218
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	219 F77_RET_T
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	220 F77_FUNC (xslange, XSLANGE) (F77_CONST_CHAR_ARG_DECL, const octave_idx_type&,
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	221 const octave_idx_type&, const float*,
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	222 const octave_idx_type&, float*, float&
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	223 F77_CHAR_ARG_LEN_DECL);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	224 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	225
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	226 // Matrix class.
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	227
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	228 FloatMatrix::FloatMatrix (const FloatRowVector& rv)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	229 : MArray2<float> (1, rv.length (), 0.0)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	230 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	231 for (octave_idx_type i = 0; i < rv.length (); i++)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	232 elem (0, i) = rv.elem (i);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	233 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	234
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	235 FloatMatrix::FloatMatrix (const FloatColumnVector& cv)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	236 : MArray2<float> (cv.length (), 1, 0.0)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	237 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	238 for (octave_idx_type i = 0; i < cv.length (); i++)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	239 elem (i, 0) = cv.elem (i);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	240 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	241
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	242 FloatMatrix::FloatMatrix (const FloatDiagMatrix& a)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	243 : MArray2<float> (a.rows (), a.cols (), 0.0)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	244 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	245 for (octave_idx_type i = 0; i < a.length (); i++)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	246 elem (i, i) = a.elem (i, i);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	247 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	248
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	249 // FIXME -- could we use a templated mixed-type copy function
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	250 // here?
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	251
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	252 FloatMatrix::FloatMatrix (const boolMatrix& a)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	253 : MArray2<float> (a.rows (), a.cols ())
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	254 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	255 for (octave_idx_type i = 0; i < a.rows (); i++)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	256 for (octave_idx_type j = 0; j < a.cols (); j++)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	257 elem (i, j) = a.elem (i, j);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	258 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	259
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	260 FloatMatrix::FloatMatrix (const charMatrix& a)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	261 : MArray2<float> (a.rows (), a.cols ())
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	262 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	263 for (octave_idx_type i = 0; i < a.rows (); i++)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	264 for (octave_idx_type j = 0; j < a.cols (); j++)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	265 elem (i, j) = a.elem (i, j);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	266 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	267
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	268 bool
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	269 FloatMatrix::operator == (const FloatMatrix& a) const
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	270 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	271 if (rows () != a.rows () \|\| cols () != a.cols ())
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	272 return false;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	273
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	274 return mx_inline_equal (data (), a.data (), length ());
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	275 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	276
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	277 bool
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	278 FloatMatrix::operator != (const FloatMatrix& a) const
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	279 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	280 return !(*this == a);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	281 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	282
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	283 bool
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	284 FloatMatrix::is_symmetric (void) const
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	285 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	286 if (is_square () && rows () > 0)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	287 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	288 for (octave_idx_type i = 0; i < rows (); i++)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	289 for (octave_idx_type j = i+1; j < cols (); j++)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	290 if (elem (i, j) != elem (j, i))
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	291 return false;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	292
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	293 return true;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	294 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	295
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	296 return false;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	297 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	298
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	299 FloatMatrix&
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	300 FloatMatrix::insert (const FloatMatrix& a, octave_idx_type r, octave_idx_type c)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	301 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	302 Array2<float>::insert (a, r, c);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	303 return *this;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	304 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	305
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	306 FloatMatrix&
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	307 FloatMatrix::insert (const FloatRowVector& a, octave_idx_type r, octave_idx_type c)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	308 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	309 octave_idx_type a_len = a.length ();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	310
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	311 if (r < 0 \|\| r >= rows () \|\| c < 0 \|\| c + a_len > cols ())
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	312 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	313 (*current_liboctave_error_handler) ("range error for insert");
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	314 return *this;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	315 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	316
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	317 if (a_len > 0)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	318 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	319 make_unique ();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	320
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	321 for (octave_idx_type i = 0; i < a_len; i++)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	322 xelem (r, c+i) = a.elem (i);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	323 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	324
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	325 return *this;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	326 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	327
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	328 FloatMatrix&
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	329 FloatMatrix::insert (const FloatColumnVector& a, octave_idx_type r, octave_idx_type c)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	330 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	331 octave_idx_type a_len = a.length ();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	332
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	333 if (r < 0 \|\| r + a_len > rows () \|\| c < 0 \|\| c >= cols ())
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	334 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	335 (*current_liboctave_error_handler) ("range error for insert");
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	336 return *this;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	337 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	338
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	339 if (a_len > 0)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	340 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	341 make_unique ();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	342
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	343 for (octave_idx_type i = 0; i < a_len; i++)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	344 xelem (r+i, c) = a.elem (i);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	345 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	346
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	347 return *this;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	348 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	349
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	350 FloatMatrix&
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	351 FloatMatrix::insert (const FloatDiagMatrix& a, octave_idx_type r, octave_idx_type c)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	352 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	353 octave_idx_type a_nr = a.rows ();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	354 octave_idx_type a_nc = a.cols ();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	355
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	356 if (r < 0 \|\| r + a_nr > rows () \|\| c < 0 \|\| c + a_nc > cols ())
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	357 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	358 (*current_liboctave_error_handler) ("range error for insert");
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	359 return *this;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	360 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	361
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	362 fill (0.0, r, c, r + a_nr - 1, c + a_nc - 1);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	363
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	364 octave_idx_type a_len = a.length ();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	365
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	366 if (a_len > 0)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	367 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	368 make_unique ();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	369
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	370 for (octave_idx_type i = 0; i < a_len; i++)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	371 xelem (r+i, c+i) = a.elem (i, i);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	372 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	373
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	374 return *this;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	375 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	376
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	377 FloatMatrix&
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	378 FloatMatrix::fill (float val)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	379 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	380 octave_idx_type nr = rows ();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	381 octave_idx_type nc = cols ();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	382
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	383 if (nr > 0 && nc > 0)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	384 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	385 make_unique ();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	386
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	387 for (octave_idx_type j = 0; j < nc; j++)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	388 for (octave_idx_type i = 0; i < nr; i++)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	389 xelem (i, j) = val;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	390 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	391
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	392 return *this;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	393 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	394
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	395 FloatMatrix&
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	396 FloatMatrix::fill (float val, octave_idx_type r1, octave_idx_type c1, octave_idx_type r2, octave_idx_type c2)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	397 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	398 octave_idx_type nr = rows ();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	399 octave_idx_type nc = cols ();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	400
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	401 if (r1 < 0 \|\| r2 < 0 \|\| c1 < 0 \|\| c2 < 0
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	402 \|\| r1 >= nr \|\| r2 >= nr \|\| c1 >= nc \|\| c2 >= nc)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	403 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	404 (*current_liboctave_error_handler) ("range error for fill");
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	405 return *this;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	406 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	407
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	408 if (r1 > r2) { octave_idx_type tmp = r1; r1 = r2; r2 = tmp; }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	409 if (c1 > c2) { octave_idx_type tmp = c1; c1 = c2; c2 = tmp; }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	410
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	411 if (r2 >= r1 && c2 >= c1)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	412 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	413 make_unique ();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	414
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	415 for (octave_idx_type j = c1; j <= c2; j++)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	416 for (octave_idx_type i = r1; i <= r2; i++)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	417 xelem (i, j) = val;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	418 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	419
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	420 return *this;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	421 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	422
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	423 FloatMatrix
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	424 FloatMatrix::append (const FloatMatrix& a) const
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	425 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	426 octave_idx_type nr = rows ();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	427 octave_idx_type nc = cols ();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	428 if (nr != a.rows ())
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	429 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	430 (*current_liboctave_error_handler) ("row dimension mismatch for append");
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	431 return FloatMatrix ();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	432 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	433
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	434 octave_idx_type nc_insert = nc;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	435 FloatMatrix retval (nr, nc + a.cols ());
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	436 retval.insert (*this, 0, 0);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	437 retval.insert (a, 0, nc_insert);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	438 return retval;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	439 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	440
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	441 FloatMatrix
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	442 FloatMatrix::append (const FloatRowVector& a) const
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	443 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	444 octave_idx_type nr = rows ();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	445 octave_idx_type nc = cols ();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	446 if (nr != 1)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	447 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	448 (*current_liboctave_error_handler) ("row dimension mismatch for append");
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	449 return FloatMatrix ();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	450 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	451
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	452 octave_idx_type nc_insert = nc;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	453 FloatMatrix retval (nr, nc + a.length ());
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	454 retval.insert (*this, 0, 0);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	455 retval.insert (a, 0, nc_insert);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	456 return retval;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	457 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	458
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	459 FloatMatrix
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	460 FloatMatrix::append (const FloatColumnVector& a) const
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	461 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	462 octave_idx_type nr = rows ();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	463 octave_idx_type nc = cols ();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	464 if (nr != a.length ())
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	465 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	466 (*current_liboctave_error_handler) ("row dimension mismatch for append");
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	467 return FloatMatrix ();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	468 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	469
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	470 octave_idx_type nc_insert = nc;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	471 FloatMatrix retval (nr, nc + 1);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	472 retval.insert (*this, 0, 0);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	473 retval.insert (a, 0, nc_insert);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	474 return retval;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	475 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	476
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	477 FloatMatrix
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	478 FloatMatrix::append (const FloatDiagMatrix& a) const
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	479 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	480 octave_idx_type nr = rows ();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	481 octave_idx_type nc = cols ();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	482 if (nr != a.rows ())
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	483 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	484 (*current_liboctave_error_handler) ("row dimension mismatch for append");
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	485 return *this;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	486 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	487
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	488 octave_idx_type nc_insert = nc;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	489 FloatMatrix retval (nr, nc + a.cols ());
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	490 retval.insert (*this, 0, 0);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	491 retval.insert (a, 0, nc_insert);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	492 return retval;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	493 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	494
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	495 FloatMatrix
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	496 FloatMatrix::stack (const FloatMatrix& a) const
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	497 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	498 octave_idx_type nr = rows ();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	499 octave_idx_type nc = cols ();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	500 if (nc != a.cols ())
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	501 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	502 (*current_liboctave_error_handler)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	503 ("column dimension mismatch for stack");
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	504 return FloatMatrix ();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	505 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	506
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	507 octave_idx_type nr_insert = nr;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	508 FloatMatrix retval (nr + a.rows (), nc);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	509 retval.insert (*this, 0, 0);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	510 retval.insert (a, nr_insert, 0);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	511 return retval;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	512 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	513
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	514 FloatMatrix
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	515 FloatMatrix::stack (const FloatRowVector& a) const
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	516 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	517 octave_idx_type nr = rows ();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	518 octave_idx_type nc = cols ();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	519 if (nc != a.length ())
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	520 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	521 (*current_liboctave_error_handler)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	522 ("column dimension mismatch for stack");
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	523 return FloatMatrix ();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	524 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	525
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	526 octave_idx_type nr_insert = nr;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	527 FloatMatrix retval (nr + 1, nc);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	528 retval.insert (*this, 0, 0);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	529 retval.insert (a, nr_insert, 0);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	530 return retval;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	531 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	532
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	533 FloatMatrix
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	534 FloatMatrix::stack (const FloatColumnVector& a) const
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	535 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	536 octave_idx_type nr = rows ();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	537 octave_idx_type nc = cols ();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	538 if (nc != 1)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	539 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	540 (*current_liboctave_error_handler)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	541 ("column dimension mismatch for stack");
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	542 return FloatMatrix ();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	543 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	544
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	545 octave_idx_type nr_insert = nr;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	546 FloatMatrix retval (nr + a.length (), nc);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	547 retval.insert (*this, 0, 0);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	548 retval.insert (a, nr_insert, 0);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	549 return retval;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	550 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	551
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	552 FloatMatrix
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	553 FloatMatrix::stack (const FloatDiagMatrix& a) const
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	554 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	555 octave_idx_type nr = rows ();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	556 octave_idx_type nc = cols ();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	557 if (nc != a.cols ())
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	558 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	559 (*current_liboctave_error_handler)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	560 ("column dimension mismatch for stack");
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	561 return FloatMatrix ();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	562 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	563
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	564 octave_idx_type nr_insert = nr;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	565 FloatMatrix retval (nr + a.rows (), nc);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	566 retval.insert (*this, 0, 0);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	567 retval.insert (a, nr_insert, 0);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	568 return retval;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	569 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	570
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	571 FloatMatrix
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	572 real (const FloatComplexMatrix& a)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	573 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	574 octave_idx_type a_len = a.length ();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	575 FloatMatrix retval;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	576 if (a_len > 0)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	577 retval = FloatMatrix (mx_inline_real_dup (a.data (), a_len),
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	578 a.rows (), a.cols ());
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	579 return retval;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	580 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	581
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	582 FloatMatrix
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	583 imag (const FloatComplexMatrix& a)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	584 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	585 octave_idx_type a_len = a.length ();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	586 FloatMatrix retval;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	587 if (a_len > 0)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	588 retval = FloatMatrix (mx_inline_imag_dup (a.data (), a_len),
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	589 a.rows (), a.cols ());
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	590 return retval;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	591 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	592
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	593 FloatMatrix
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	594 FloatMatrix::extract (octave_idx_type r1, octave_idx_type c1, octave_idx_type r2, octave_idx_type c2) const
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	595 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	596 if (r1 > r2) { octave_idx_type tmp = r1; r1 = r2; r2 = tmp; }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	597 if (c1 > c2) { octave_idx_type tmp = c1; c1 = c2; c2 = tmp; }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	598
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	599 octave_idx_type new_r = r2 - r1 + 1;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	600 octave_idx_type new_c = c2 - c1 + 1;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	601
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	602 FloatMatrix result (new_r, new_c);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	603
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	604 for (octave_idx_type j = 0; j < new_c; j++)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	605 for (octave_idx_type i = 0; i < new_r; i++)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	606 result.xelem (i, j) = elem (r1+i, c1+j);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	607
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	608 return result;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	609 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	610
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	611 FloatMatrix
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	612 FloatMatrix::extract_n (octave_idx_type r1, octave_idx_type c1, octave_idx_type nr, octave_idx_type nc) const
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	613 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	614 FloatMatrix result (nr, nc);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	615
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	616 for (octave_idx_type j = 0; j < nc; j++)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	617 for (octave_idx_type i = 0; i < nr; i++)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	618 result.xelem (i, j) = elem (r1+i, c1+j);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	619
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	620 return result;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	621 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	622
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	623 // extract row or column i.
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	624
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	625 FloatRowVector
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	626 FloatMatrix::row (octave_idx_type i) const
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	627 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	628 octave_idx_type nc = cols ();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	629 if (i < 0 \|\| i >= rows ())
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	630 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	631 (*current_liboctave_error_handler) ("invalid row selection");
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	632 return FloatRowVector ();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	633 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	634
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	635 FloatRowVector retval (nc);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	636 for (octave_idx_type j = 0; j < nc; j++)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	637 retval.xelem (j) = elem (i, j);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	638
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	639 return retval;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	640 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	641
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	642 FloatColumnVector
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	643 FloatMatrix::column (octave_idx_type i) const
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	644 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	645 octave_idx_type nr = rows ();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	646 if (i < 0 \|\| i >= cols ())
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	647 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	648 (*current_liboctave_error_handler) ("invalid column selection");
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	649 return FloatColumnVector ();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	650 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	651
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	652 FloatColumnVector retval (nr);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	653 for (octave_idx_type j = 0; j < nr; j++)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	654 retval.xelem (j) = elem (j, i);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	655
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	656 return retval;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	657 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	658
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	659 FloatMatrix
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	660 FloatMatrix::inverse (void) const
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	661 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	662 octave_idx_type info;
7797 f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	663 float rcon;
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	664 MatrixType mattype (*this);
7797 f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	665 return inverse (mattype, info, rcon, 0, 0);
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	666 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	667
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	668 FloatMatrix
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	669 FloatMatrix::inverse (octave_idx_type& info) const
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	670 {
7797 f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	671 float rcon;
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	672 MatrixType mattype (*this);
7797 f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	673 return inverse (mattype, info, rcon, 0, 0);
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	674 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	675
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	676 FloatMatrix
7797 f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	677 FloatMatrix::inverse (octave_idx_type& info, float& rcon, int force,
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	678 int calc_cond) const
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	679 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	680 MatrixType mattype (*this);
7797 f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	681 return inverse (mattype, info, rcon, force, calc_cond);
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	682 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	683
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	684 FloatMatrix
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	685 FloatMatrix::inverse (MatrixType& mattype) const
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	686 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	687 octave_idx_type info;
7797 f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	688 float rcon;
f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	689 return inverse (mattype, info, rcon, 0, 0);
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	690 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	691
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	692 FloatMatrix
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	693 FloatMatrix::inverse (MatrixType &mattype, octave_idx_type& info) const
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	694 {
7797 f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	695 float rcon;
f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	696 return inverse (mattype, info, rcon, 0, 0);
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	697 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	698
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	699 FloatMatrix
7797 f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	700 FloatMatrix::tinverse (MatrixType &mattype, octave_idx_type& info, float& rcon,
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	701 int force, int calc_cond) const
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	702 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	703 FloatMatrix retval;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	704
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	705 octave_idx_type nr = rows ();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	706 octave_idx_type nc = cols ();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	707
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	708 if (nr != nc \|\| nr == 0 \|\| nc == 0)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	709 (*current_liboctave_error_handler) ("inverse requires square matrix");
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	710 else
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	711 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	712 int typ = mattype.type ();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	713 char uplo = (typ == MatrixType::Lower ? 'L' : 'U');
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	714 char udiag = 'N';
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	715 retval = *this;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	716 float *tmp_data = retval.fortran_vec ();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	717
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	718 F77_XFCN (strtri, STRTRI, (F77_CONST_CHAR_ARG2 (&uplo, 1),
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	719 F77_CONST_CHAR_ARG2 (&udiag, 1),
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	720 nr, tmp_data, nr, info
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	721 F77_CHAR_ARG_LEN (1)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	722 F77_CHAR_ARG_LEN (1)));
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	723
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	724 // Throw-away extra info LAPACK gives so as to not change output.
7797 f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	725 rcon = 0.0;
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	726 if (info != 0)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	727 info = -1;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	728 else if (calc_cond)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	729 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	730 octave_idx_type dtrcon_info = 0;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	731 char job = '1';
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	732
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	733 OCTAVE_LOCAL_BUFFER (float, work, 3 * nr);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	734 OCTAVE_LOCAL_BUFFER (octave_idx_type, iwork, nr);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	735
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	736 F77_XFCN (strcon, STRCON, (F77_CONST_CHAR_ARG2 (&job, 1),
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	737 F77_CONST_CHAR_ARG2 (&uplo, 1),
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	738 F77_CONST_CHAR_ARG2 (&udiag, 1),
7797 f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	739 nr, tmp_data, nr, rcon,
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	740 work, iwork, dtrcon_info
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	741 F77_CHAR_ARG_LEN (1)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	742 F77_CHAR_ARG_LEN (1)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	743 F77_CHAR_ARG_LEN (1)));
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	744
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	745 if (dtrcon_info != 0)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	746 info = -1;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	747 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	748
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	749 if (info == -1 && ! force)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	750 retval = *this; // Restore matrix contents.
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	751 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	752
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	753 return retval;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	754 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	755
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	756
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	757 FloatMatrix
7797 f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	758 FloatMatrix::finverse (MatrixType &mattype, octave_idx_type& info, float& rcon,
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	759 int force, int calc_cond) const
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	760 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	761 FloatMatrix retval;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	762
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	763 octave_idx_type nr = rows ();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	764 octave_idx_type nc = cols ();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	765
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	766 if (nr != nc \|\| nr == 0 \|\| nc == 0)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	767 (*current_liboctave_error_handler) ("inverse requires square matrix");
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	768 else
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	769 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	770 Array<octave_idx_type> ipvt (nr);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	771 octave_idx_type *pipvt = ipvt.fortran_vec ();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	772
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	773 retval = *this;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	774 float *tmp_data = retval.fortran_vec ();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	775
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	776 Array<float> z(1);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	777 octave_idx_type lwork = -1;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	778
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	779 // Query the optimum work array size.
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	780 F77_XFCN (sgetri, SGETRI, (nc, tmp_data, nr, pipvt,
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	781 z.fortran_vec (), lwork, info));
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	782
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	783 lwork = static_cast<octave_idx_type> (z(0));
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	784 lwork = (lwork < 2 nc ? 2nc : lwork);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	785 z.resize (lwork);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	786 float *pz = z.fortran_vec ();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	787
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	788 info = 0;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	789
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	790 // Calculate the norm of the matrix, for later use.
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	791 float anorm = 0;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	792 if (calc_cond)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	793 anorm = retval.abs().sum().row(static_cast<octave_idx_type>(0)).max();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	794
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	795 F77_XFCN (sgetrf, SGETRF, (nc, nc, tmp_data, nr, pipvt, info));
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	796
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	797 // Throw-away extra info LAPACK gives so as to not change output.
7797 f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	798 rcon = 0.0;
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	799 if (info != 0)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	800 info = -1;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	801 else if (calc_cond)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	802 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	803 octave_idx_type dgecon_info = 0;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	804
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	805 // Now calculate the condition number for non-singular matrix.
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	806 char job = '1';
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	807 Array<octave_idx_type> iz (nc);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	808 octave_idx_type *piz = iz.fortran_vec ();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	809 F77_XFCN (sgecon, SGECON, (F77_CONST_CHAR_ARG2 (&job, 1),
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	810 nc, tmp_data, nr, anorm,
7797 f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	811 rcon, pz, piz, dgecon_info
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	812 F77_CHAR_ARG_LEN (1)));
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	813
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	814 if (dgecon_info != 0)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	815 info = -1;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	816 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	817
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	818 if (info == -1 && ! force)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	819 retval = *this; // Restore matrix contents.
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	820 else
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	821 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	822 octave_idx_type dgetri_info = 0;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	823
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	824 F77_XFCN (sgetri, SGETRI, (nc, tmp_data, nr, pipvt,
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	825 pz, lwork, dgetri_info));
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	826
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	827 if (dgetri_info != 0)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	828 info = -1;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	829 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	830
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	831 if (info != 0)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	832 mattype.mark_as_rectangular();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	833 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	834
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	835 return retval;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	836 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	837
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	838 FloatMatrix
7797 f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	839 FloatMatrix::inverse (MatrixType &mattype, octave_idx_type& info, float& rcon,
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	840 int force, int calc_cond) const
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	841 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	842 int typ = mattype.type (false);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	843 FloatMatrix ret;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	844
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	845 if (typ == MatrixType::Unknown)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	846 typ = mattype.type (*this);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	847
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	848 if (typ == MatrixType::Upper \|\| typ == MatrixType::Lower)
7797 f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	849 ret = tinverse (mattype, info, rcon, force, calc_cond);
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	850 else
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	851 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	852 if (mattype.is_hermitian ())
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	853 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	854 FloatCHOL chol (*this, info, calc_cond);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	855 if (info == 0)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	856 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	857 if (calc_cond)
7797 f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	858 rcon = chol.rcond ();
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	859 else
7797 f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	860 rcon = 1.0;
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	861 ret = chol.inverse ();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	862 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	863 else
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	864 mattype.mark_as_unsymmetric ();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	865 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	866
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	867 if (!mattype.is_hermitian ())
7797 f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	868 ret = finverse(mattype, info, rcon, force, calc_cond);
f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	869
f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	870 if ((mattype.is_hermitian () \|\| calc_cond) && rcon == 0.)
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	871 ret = FloatMatrix (rows (), columns (), octave_Float_Inf);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	872 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	873
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	874 return ret;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	875 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	876
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	877 FloatMatrix
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	878 FloatMatrix::pseudo_inverse (float tol) const
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	879 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	880 FloatSVD result (*this, SVD::economy);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	881
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	882 FloatDiagMatrix S = result.singular_values ();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	883 FloatMatrix U = result.left_singular_matrix ();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	884 FloatMatrix V = result.right_singular_matrix ();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	885
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	886 FloatColumnVector sigma = S.diag ();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	887
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	888 octave_idx_type r = sigma.length () - 1;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	889 octave_idx_type nr = rows ();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	890 octave_idx_type nc = cols ();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	891
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	892 if (tol <= 0.0)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	893 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	894 if (nr > nc)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	895 tol = nr * sigma.elem (0) * DBL_EPSILON;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	896 else
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	897 tol = nc * sigma.elem (0) * DBL_EPSILON;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	898 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	899
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	900 while (r >= 0 && sigma.elem (r) < tol)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	901 r--;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	902
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	903 if (r < 0)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	904 return FloatMatrix (nc, nr, 0.0);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	905 else
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	906 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	907 FloatMatrix Ur = U.extract (0, 0, nr-1, r);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	908 FloatDiagMatrix D = FloatDiagMatrix (sigma.extract (0, r)) . inverse ();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	909 FloatMatrix Vr = V.extract (0, 0, nc-1, r);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	910 return Vr * D * Ur.transpose ();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	911 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	912 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	913
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	914 #if defined (HAVE_FFTW3)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	915
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	916 FloatComplexMatrix
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	917 FloatMatrix::fourier (void) const
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	918 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	919 size_t nr = rows ();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	920 size_t nc = cols ();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	921
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	922 FloatComplexMatrix retval (nr, nc);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	923
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	924 size_t npts, nsamples;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	925
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	926 if (nr == 1 \|\| nc == 1)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	927 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	928 npts = nr > nc ? nr : nc;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	929 nsamples = 1;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	930 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	931 else
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	932 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	933 npts = nr;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	934 nsamples = nc;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	935 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	936
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	937 const float *in (fortran_vec ());
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	938 FloatComplex *out (retval.fortran_vec ());
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	939
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	940 octave_fftw::fft (in, out, npts, nsamples);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	941
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	942 return retval;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	943 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	944
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	945 FloatComplexMatrix
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	946 FloatMatrix::ifourier (void) const
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	947 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	948 size_t nr = rows ();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	949 size_t nc = cols ();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	950
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	951 FloatComplexMatrix retval (nr, nc);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	952
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	953 size_t npts, nsamples;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	954
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	955 if (nr == 1 \|\| nc == 1)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	956 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	957 npts = nr > nc ? nr : nc;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	958 nsamples = 1;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	959 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	960 else
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	961 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	962 npts = nr;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	963 nsamples = nc;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	964 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	965
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	966 FloatComplexMatrix tmp (*this);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	967 FloatComplex *in (tmp.fortran_vec ());
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	968 FloatComplex *out (retval.fortran_vec ());
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	969
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	970 octave_fftw::ifft (in, out, npts, nsamples);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	971
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	972 return retval;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	973 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	974
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	975 FloatComplexMatrix
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	976 FloatMatrix::fourier2d (void) const
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	977 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	978 dim_vector dv(rows (), cols ());
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	979
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	980 const float *in = fortran_vec ();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	981 FloatComplexMatrix retval (rows (), cols ());
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	982 octave_fftw::fftNd (in, retval.fortran_vec (), 2, dv);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	983
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	984 return retval;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	985 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	986
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	987 FloatComplexMatrix
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	988 FloatMatrix::ifourier2d (void) const
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	989 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	990 dim_vector dv(rows (), cols ());
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	991
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	992 FloatComplexMatrix retval (*this);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	993 FloatComplex *out (retval.fortran_vec ());
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	994
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	995 octave_fftw::ifftNd (out, out, 2, dv);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	996
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	997 return retval;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	998 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	999
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1000 #else
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1001
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1002 FloatComplexMatrix
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1003 FloatMatrix::fourier (void) const
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1004 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1005 FloatComplexMatrix retval;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1006
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1007 octave_idx_type nr = rows ();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1008 octave_idx_type nc = cols ();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1009
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1010 octave_idx_type npts, nsamples;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1011
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1012 if (nr == 1 \|\| nc == 1)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1013 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1014 npts = nr > nc ? nr : nc;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1015 nsamples = 1;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1016 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1017 else
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1018 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1019 npts = nr;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1020 nsamples = nc;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1021 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1022
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1023 octave_idx_type nn = 4*npts+15;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1024
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1025 Array<FloatComplex> wsave (nn);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1026 FloatComplex *pwsave = wsave.fortran_vec ();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1027
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1028 retval = FloatComplexMatrix (*this);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1029 FloatComplex *tmp_data = retval.fortran_vec ();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1030
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1031 F77_FUNC (cffti, CFFTI) (npts, pwsave);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1032
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1033 for (octave_idx_type j = 0; j < nsamples; j++)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1034 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1035 OCTAVE_QUIT;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1036
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1037 F77_FUNC (cfftf, CFFTF) (npts, &tmp_data[npts*j], pwsave);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1038 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1039
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1040 return retval;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1041 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1042
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1043 FloatComplexMatrix
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1044 FloatMatrix::ifourier (void) const
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1045 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1046 FloatComplexMatrix retval;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1047
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1048 octave_idx_type nr = rows ();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1049 octave_idx_type nc = cols ();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1050
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1051 octave_idx_type npts, nsamples;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1052
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1053 if (nr == 1 \|\| nc == 1)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1054 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1055 npts = nr > nc ? nr : nc;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1056 nsamples = 1;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1057 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1058 else
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1059 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1060 npts = nr;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1061 nsamples = nc;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1062 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1063
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1064 octave_idx_type nn = 4*npts+15;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1065
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1066 Array<FloatComplex> wsave (nn);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1067 FloatComplex *pwsave = wsave.fortran_vec ();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1068
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1069 retval = FloatComplexMatrix (*this);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1070 FloatComplex *tmp_data = retval.fortran_vec ();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1071
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1072 F77_FUNC (cffti, CFFTI) (npts, pwsave);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1073
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1074 for (octave_idx_type j = 0; j < nsamples; j++)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1075 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1076 OCTAVE_QUIT;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1077
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1078 F77_FUNC (cfftb, CFFTB) (npts, &tmp_data[npts*j], pwsave);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1079 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1080
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1081 for (octave_idx_type j = 0; j < npts*nsamples; j++)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1082 tmp_data[j] = tmp_data[j] / static_cast<float> (npts);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1083
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1084 return retval;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1085 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1086
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1087 FloatComplexMatrix
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1088 FloatMatrix::fourier2d (void) const
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1089 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1090 FloatComplexMatrix retval;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1091
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1092 octave_idx_type nr = rows ();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1093 octave_idx_type nc = cols ();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1094
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1095 octave_idx_type npts, nsamples;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1096
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1097 if (nr == 1 \|\| nc == 1)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1098 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1099 npts = nr > nc ? nr : nc;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1100 nsamples = 1;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1101 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1102 else
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1103 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1104 npts = nr;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1105 nsamples = nc;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1106 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1107
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1108 octave_idx_type nn = 4*npts+15;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1109
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1110 Array<FloatComplex> wsave (nn);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1111 FloatComplex *pwsave = wsave.fortran_vec ();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1112
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1113 retval = FloatComplexMatrix (*this);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1114 FloatComplex *tmp_data = retval.fortran_vec ();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1115
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1116 F77_FUNC (cffti, CFFTI) (npts, pwsave);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1117
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1118 for (octave_idx_type j = 0; j < nsamples; j++)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1119 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1120 OCTAVE_QUIT;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1121
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1122 F77_FUNC (cfftf, CFFTF) (npts, &tmp_data[npts*j], pwsave);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1123 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1124
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1125 npts = nc;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1126 nsamples = nr;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1127 nn = 4*npts+15;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1128
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1129 wsave.resize (nn);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1130 pwsave = wsave.fortran_vec ();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1131
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1132 Array<FloatComplex> tmp (npts);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1133 FloatComplex *prow = tmp.fortran_vec ();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1134
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1135 F77_FUNC (cffti, CFFTI) (npts, pwsave);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1136
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1137 for (octave_idx_type j = 0; j < nsamples; j++)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1138 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1139 OCTAVE_QUIT;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1140
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1141 for (octave_idx_type i = 0; i < npts; i++)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1142 prow[i] = tmp_data[i*nr + j];
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1143
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1144 F77_FUNC (cfftf, CFFTF) (npts, prow, pwsave);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1145
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1146 for (octave_idx_type i = 0; i < npts; i++)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1147 tmp_data[i*nr + j] = prow[i];
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1148 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1149
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1150 return retval;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1151 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1152
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1153 FloatComplexMatrix
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1154 FloatMatrix::ifourier2d (void) const
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1155 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1156 FloatComplexMatrix retval;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1157
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1158 octave_idx_type nr = rows ();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1159 octave_idx_type nc = cols ();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1160
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1161 octave_idx_type npts, nsamples;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1162
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1163 if (nr == 1 \|\| nc == 1)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1164 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1165 npts = nr > nc ? nr : nc;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1166 nsamples = 1;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1167 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1168 else
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1169 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1170 npts = nr;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1171 nsamples = nc;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1172 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1173
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1174 octave_idx_type nn = 4*npts+15;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1175
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1176 Array<FloatComplex> wsave (nn);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1177 FloatComplex *pwsave = wsave.fortran_vec ();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1178
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1179 retval = FloatComplexMatrix (*this);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1180 FloatComplex *tmp_data = retval.fortran_vec ();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1181
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1182 F77_FUNC (cffti, CFFTI) (npts, pwsave);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1183
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1184 for (octave_idx_type j = 0; j < nsamples; j++)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1185 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1186 OCTAVE_QUIT;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1187
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1188 F77_FUNC (cfftb, CFFTB) (npts, &tmp_data[npts*j], pwsave);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1189 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1190
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1191 for (octave_idx_type j = 0; j < npts*nsamples; j++)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1192 tmp_data[j] = tmp_data[j] / static_cast<float> (npts);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1193
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1194 npts = nc;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1195 nsamples = nr;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1196 nn = 4*npts+15;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1197
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1198 wsave.resize (nn);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1199 pwsave = wsave.fortran_vec ();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1200
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1201 Array<FloatComplex> tmp (npts);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1202 FloatComplex *prow = tmp.fortran_vec ();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1203
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1204 F77_FUNC (cffti, CFFTI) (npts, pwsave);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1205
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1206 for (octave_idx_type j = 0; j < nsamples; j++)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1207 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1208 OCTAVE_QUIT;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1209
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1210 for (octave_idx_type i = 0; i < npts; i++)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1211 prow[i] = tmp_data[i*nr + j];
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1212
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1213 F77_FUNC (cfftb, CFFTB) (npts, prow, pwsave);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1214
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1215 for (octave_idx_type i = 0; i < npts; i++)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1216 tmp_data[i*nr + j] = prow[i] / static_cast<float> (npts);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1217 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1218
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1219 return retval;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1220 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1221
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1222 #endif
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1223
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1224 FloatDET
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1225 FloatMatrix::determinant (void) const
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1226 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1227 octave_idx_type info;
7797 f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1228 float rcon;
f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1229 return determinant (info, rcon, 0);
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1230 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1231
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1232 FloatDET
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1233 FloatMatrix::determinant (octave_idx_type& info) const
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1234 {
7797 f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1235 float rcon;
f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1236 return determinant (info, rcon, 0);
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1237 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1238
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1239 FloatDET
7797 f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1240 FloatMatrix::determinant (octave_idx_type& info, float& rcon, int calc_cond) const
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1241 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1242 FloatDET retval;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1243
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1244 octave_idx_type nr = rows ();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1245 octave_idx_type nc = cols ();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1246
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1247 if (nr == 0 \|\| nc == 0)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1248 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1249 retval = FloatDET (1.0, 0);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1250 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1251 else
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1252 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1253 Array<octave_idx_type> ipvt (nr);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1254 octave_idx_type *pipvt = ipvt.fortran_vec ();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1255
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1256 FloatMatrix atmp = *this;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1257 float *tmp_data = atmp.fortran_vec ();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1258
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1259 info = 0;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1260
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1261 // Calculate the norm of the matrix, for later use.
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1262 float anorm = 0;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1263 if (calc_cond)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1264 anorm = atmp.abs().sum().row(static_cast<octave_idx_type>(0)).max();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1265
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1266 F77_XFCN (sgetrf, SGETRF, (nr, nr, tmp_data, nr, pipvt, info));
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1267
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1268 // Throw-away extra info LAPACK gives so as to not change output.
7797 f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1269 rcon = 0.0;
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1270 if (info != 0)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1271 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1272 info = -1;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1273 retval = FloatDET ();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1274 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1275 else
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1276 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1277 if (calc_cond)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1278 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1279 // Now calc the condition number for non-singular matrix.
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1280 char job = '1';
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1281 Array<float> z (4 * nc);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1282 float *pz = z.fortran_vec ();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1283 Array<octave_idx_type> iz (nc);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1284 octave_idx_type *piz = iz.fortran_vec ();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1285
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1286 F77_XFCN (sgecon, SGECON, (F77_CONST_CHAR_ARG2 (&job, 1),
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1287 nc, tmp_data, nr, anorm,
7797 f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1288 rcon, pz, piz, info
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1289 F77_CHAR_ARG_LEN (1)));
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1290 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1291
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1292 if (info != 0)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1293 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1294 info = -1;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1295 retval = FloatDET ();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1296 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1297 else
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1298 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1299 float c = 1.0;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1300 int e = 0;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1301
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1302 for (octave_idx_type i = 0; i < nc; i++)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1303 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1304 if (ipvt(i) != (i+1))
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1305 c = -c;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1306
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1307 c *= atmp(i,i);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1308
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1309 if (c == 0.0)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1310 break;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1311
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1312 while (fabs (c) < 0.5)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1313 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1314 c *= 2.0;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1315 e--;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1316 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1317
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1318 while (fabs (c) >= 2.0)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1319 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1320 c /= 2.0;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1321 e++;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1322 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1323 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1324
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1325 retval = FloatDET (c, e);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1326 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1327 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1328 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1329
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1330 return retval;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1331 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1332
7797 f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1333 float
f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1334 FloatMatrix::rcond (void) const
f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1335 {
f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1336 MatrixType mattype (*this);
f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1337 return rcond (mattype);
f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1338 }
f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1339
f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1340 float
f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1341 FloatMatrix::rcond (MatrixType &mattype) const
f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1342 {
f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1343 float rcon;
f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1344 octave_idx_type nr = rows ();
f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1345 octave_idx_type nc = cols ();
f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1346
f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1347 if (nr != nc)
f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1348 (*current_liboctave_error_handler) ("matrix must be square");
f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1349 else if (nr == 0 \|\| nc == 0)
f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1350 rcon = octave_Inf;
f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1351 else
f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1352 {
f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1353 int typ = mattype.type ();
f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1354
f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1355 if (typ == MatrixType::Unknown)
f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1356 typ = mattype.type (*this);
f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1357
f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1358 // Only calculate the condition number for LU/Cholesky
f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1359 if (typ == MatrixType::Upper)
f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1360 {
f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1361 const float *tmp_data = fortran_vec ();
f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1362 octave_idx_type info = 0;
f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1363 char norm = '1';
f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1364 char uplo = 'U';
f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1365 char dia = 'N';
f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1366
f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1367 Array<float> z (3 * nc);
f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1368 float *pz = z.fortran_vec ();
f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1369 Array<octave_idx_type> iz (nc);
f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1370 octave_idx_type *piz = iz.fortran_vec ();
f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1371
f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1372 F77_XFCN (strcon, STRCON, (F77_CONST_CHAR_ARG2 (&norm, 1),
f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1373 F77_CONST_CHAR_ARG2 (&uplo, 1),
f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1374 F77_CONST_CHAR_ARG2 (&dia, 1),
f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1375 nr, tmp_data, nr, rcon,
f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1376 pz, piz, info
f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1377 F77_CHAR_ARG_LEN (1)
f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1378 F77_CHAR_ARG_LEN (1)
f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1379 F77_CHAR_ARG_LEN (1)));
f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1380
f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1381 if (info != 0)
f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1382 rcon = 0.0;
f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1383 }
f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1384 else if (typ == MatrixType::Permuted_Upper)
f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1385 (*current_liboctave_error_handler)
f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1386 ("permuted triangular matrix not implemented");
f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1387 else if (typ == MatrixType::Lower)
f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1388 {
f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1389 const float *tmp_data = fortran_vec ();
f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1390 octave_idx_type info = 0;
f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1391 char norm = '1';
f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1392 char uplo = 'L';
f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1393 char dia = 'N';
f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1394
f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1395 Array<float> z (3 * nc);
f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1396 float *pz = z.fortran_vec ();
f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1397 Array<octave_idx_type> iz (nc);
f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1398 octave_idx_type *piz = iz.fortran_vec ();
f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1399
f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1400 F77_XFCN (strcon, STRCON, (F77_CONST_CHAR_ARG2 (&norm, 1),
f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1401 F77_CONST_CHAR_ARG2 (&uplo, 1),
f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1402 F77_CONST_CHAR_ARG2 (&dia, 1),
f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1403 nr, tmp_data, nr, rcon,
f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1404 pz, piz, info
f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1405 F77_CHAR_ARG_LEN (1)
f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1406 F77_CHAR_ARG_LEN (1)
f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1407 F77_CHAR_ARG_LEN (1)));
f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1408
f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1409 if (info != 0)
f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1410 rcon = 0.0;
f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1411 }
f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1412 else if (typ == MatrixType::Permuted_Lower)
f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1413 (*current_liboctave_error_handler)
f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1414 ("permuted triangular matrix not implemented");
f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1415 else if (typ == MatrixType::Full \|\| typ == MatrixType::Hermitian)
f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1416 {
f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1417 float anorm = -1.0;
f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1418 FloatMatrix atmp = *this;
f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1419 float *tmp_data = atmp.fortran_vec ();
f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1420
f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1421 if (typ == MatrixType::Hermitian)
f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1422 {
f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1423 octave_idx_type info = 0;
f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1424 char job = 'L';
f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1425 anorm = atmp.abs().sum().
f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1426 row(static_cast<octave_idx_type>(0)).max();
f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1427
f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1428 F77_XFCN (spotrf, SPOTRF, (F77_CONST_CHAR_ARG2 (&job, 1), nr,
f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1429 tmp_data, nr, info
f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1430 F77_CHAR_ARG_LEN (1)));
f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1431
f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1432 if (info != 0)
f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1433 {
f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1434 rcon = 0.0;
f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1435 mattype.mark_as_unsymmetric ();
f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1436 typ = MatrixType::Full;
f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1437 }
f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1438 else
f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1439 {
f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1440 Array<float> z (3 * nc);
f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1441 float *pz = z.fortran_vec ();
f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1442 Array<octave_idx_type> iz (nc);
f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1443 octave_idx_type *piz = iz.fortran_vec ();
f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1444
f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1445 F77_XFCN (spocon, SPOCON, (F77_CONST_CHAR_ARG2 (&job, 1),
f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1446 nr, tmp_data, nr, anorm,
f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1447 rcon, pz, piz, info
f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1448 F77_CHAR_ARG_LEN (1)));
f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1449
f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1450 if (info != 0)
f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1451 rcon = 0.0;
f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1452 }
f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1453 }
f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1454
f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1455 if (typ == MatrixType::Full)
f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1456 {
f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1457 octave_idx_type info = 0;
f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1458
f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1459 Array<octave_idx_type> ipvt (nr);
f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1460 octave_idx_type *pipvt = ipvt.fortran_vec ();
f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1461
f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1462 if(anorm < 0.)
f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1463 anorm = atmp.abs().sum().
f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1464 row(static_cast<octave_idx_type>(0)).max();
f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1465
f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1466 Array<float> z (4 * nc);
f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1467 float *pz = z.fortran_vec ();
f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1468 Array<octave_idx_type> iz (nc);
f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1469 octave_idx_type *piz = iz.fortran_vec ();
f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1470
f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1471 F77_XFCN (sgetrf, SGETRF, (nr, nr, tmp_data, nr, pipvt, info));
f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1472
f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1473 if (info != 0)
f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1474 {
f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1475 rcon = 0.0;
f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1476 mattype.mark_as_rectangular ();
f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1477 }
f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1478 else
f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1479 {
f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1480 char job = '1';
f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1481 F77_XFCN (sgecon, SGECON, (F77_CONST_CHAR_ARG2 (&job, 1),
f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1482 nc, tmp_data, nr, anorm,
f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1483 rcon, pz, piz, info
f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1484 F77_CHAR_ARG_LEN (1)));
f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1485
f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1486 if (info != 0)
f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1487 rcon = 0.0;
f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1488 }
f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1489 }
f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1490 }
f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1491 else
f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1492 rcon = 0.0;
f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1493 }
f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1494
f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1495 return rcon;
f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1496 }
f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1497
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1498 FloatMatrix
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1499 FloatMatrix::utsolve (MatrixType &mattype, const FloatMatrix& b, octave_idx_type& info,
7797 f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1500 float& rcon, solve_singularity_handler sing_handler,
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1501 bool calc_cond) const
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1502 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1503 FloatMatrix retval;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1504
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1505 octave_idx_type nr = rows ();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1506 octave_idx_type nc = cols ();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1507
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1508 if (nr != b.rows ())
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1509 (*current_liboctave_error_handler)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1510 ("matrix dimension mismatch solution of linear equations");
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1511 else if (nr == 0 \|\| nc == 0 \|\| b.cols () == 0)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1512 retval = FloatMatrix (nc, b.cols (), 0.0);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1513 else
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1514 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1515 volatile int typ = mattype.type ();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1516
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1517 if (typ == MatrixType::Permuted_Upper \|\|
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1518 typ == MatrixType::Upper)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1519 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1520 octave_idx_type b_nc = b.cols ();
7797 f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1521 rcon = 1.;
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1522 info = 0;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1523
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1524 if (typ == MatrixType::Permuted_Upper)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1525 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1526 (*current_liboctave_error_handler)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1527 ("permuted triangular matrix not implemented");
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1528 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1529 else
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1530 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1531 const float *tmp_data = fortran_vec ();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1532
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1533 if (calc_cond)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1534 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1535 char norm = '1';
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1536 char uplo = 'U';
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1537 char dia = 'N';
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1538
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1539 Array<float> z (3 * nc);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1540 float *pz = z.fortran_vec ();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1541 Array<octave_idx_type> iz (nc);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1542 octave_idx_type *piz = iz.fortran_vec ();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1543
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1544 F77_XFCN (strcon, STRCON, (F77_CONST_CHAR_ARG2 (&norm, 1),
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1545 F77_CONST_CHAR_ARG2 (&uplo, 1),
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1546 F77_CONST_CHAR_ARG2 (&dia, 1),
7797 f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1547 nr, tmp_data, nr, rcon,
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1548 pz, piz, info
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1549 F77_CHAR_ARG_LEN (1)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1550 F77_CHAR_ARG_LEN (1)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1551 F77_CHAR_ARG_LEN (1)));
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1552
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1553 if (info != 0)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1554 info = -2;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1555
7797 f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1556 volatile float rcond_plus_one = rcon + 1.0;
f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1557
f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1558 if (rcond_plus_one == 1.0 \|\| xisnan (rcon))
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1559 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1560 info = -2;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1561
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1562 if (sing_handler)
7797 f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1563 sing_handler (rcon);
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1564 else
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1565 (*current_liboctave_error_handler)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1566 ("matrix singular to machine precision, rcond = %g",
7797 f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1567 rcon);
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1568 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1569 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1570
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1571 if (info == 0)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1572 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1573 retval = b;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1574 float *result = retval.fortran_vec ();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1575
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1576 char uplo = 'U';
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1577 char trans = 'N';
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1578 char dia = 'N';
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1579
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1580 F77_XFCN (strtrs, STRTRS, (F77_CONST_CHAR_ARG2 (&uplo, 1),
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1581 F77_CONST_CHAR_ARG2 (&trans, 1),
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1582 F77_CONST_CHAR_ARG2 (&dia, 1),
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1583 nr, b_nc, tmp_data, nr,
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1584 result, nr, info
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1585 F77_CHAR_ARG_LEN (1)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1586 F77_CHAR_ARG_LEN (1)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1587 F77_CHAR_ARG_LEN (1)));
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1588 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1589 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1590 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1591 else
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1592 (*current_liboctave_error_handler) ("incorrect matrix type");
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1593 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1594
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1595 return retval;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1596 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1597
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1598 FloatMatrix
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1599 FloatMatrix::ltsolve (MatrixType &mattype, const FloatMatrix& b, octave_idx_type& info,
7797 f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1600 float& rcon, solve_singularity_handler sing_handler,
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1601 bool calc_cond) const
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1602 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1603 FloatMatrix retval;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1604
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1605 octave_idx_type nr = rows ();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1606 octave_idx_type nc = cols ();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1607
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1608 if (nr != b.rows ())
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1609 (*current_liboctave_error_handler)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1610 ("matrix dimension mismatch solution of linear equations");
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1611 else if (nr == 0 \|\| nc == 0 \|\| b.cols () == 0)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1612 retval = FloatMatrix (nc, b.cols (), 0.0);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1613 else
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1614 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1615 volatile int typ = mattype.type ();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1616
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1617 if (typ == MatrixType::Permuted_Lower \|\|
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1618 typ == MatrixType::Lower)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1619 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1620 octave_idx_type b_nc = b.cols ();
7797 f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1621 rcon = 1.;
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1622 info = 0;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1623
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1624 if (typ == MatrixType::Permuted_Lower)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1625 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1626 (*current_liboctave_error_handler)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1627 ("permuted triangular matrix not implemented");
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1628 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1629 else
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1630 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1631 const float *tmp_data = fortran_vec ();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1632
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1633 if (calc_cond)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1634 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1635 char norm = '1';
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1636 char uplo = 'L';
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1637 char dia = 'N';
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1638
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1639 Array<float> z (3 * nc);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1640 float *pz = z.fortran_vec ();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1641 Array<octave_idx_type> iz (nc);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1642 octave_idx_type *piz = iz.fortran_vec ();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1643
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1644 F77_XFCN (strcon, STRCON, (F77_CONST_CHAR_ARG2 (&norm, 1),
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1645 F77_CONST_CHAR_ARG2 (&uplo, 1),
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1646 F77_CONST_CHAR_ARG2 (&dia, 1),
7797 f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1647 nr, tmp_data, nr, rcon,
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1648 pz, piz, info
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1649 F77_CHAR_ARG_LEN (1)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1650 F77_CHAR_ARG_LEN (1)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1651 F77_CHAR_ARG_LEN (1)));
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1652
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1653 if (info != 0)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1654 info = -2;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1655
7797 f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1656 volatile float rcond_plus_one = rcon + 1.0;
f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1657
f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1658 if (rcond_plus_one == 1.0 \|\| xisnan (rcon))
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1659 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1660 info = -2;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1661
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1662 if (sing_handler)
7797 f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1663 sing_handler (rcon);
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1664 else
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1665 (*current_liboctave_error_handler)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1666 ("matrix singular to machine precision, rcond = %g",
7797 f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1667 rcon);
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1668 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1669 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1670
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1671 if (info == 0)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1672 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1673 retval = b;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1674 float *result = retval.fortran_vec ();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1675
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1676 char uplo = 'L';
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1677 char trans = 'N';
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1678 char dia = 'N';
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1679
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1680 F77_XFCN (strtrs, STRTRS, (F77_CONST_CHAR_ARG2 (&uplo, 1),
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1681 F77_CONST_CHAR_ARG2 (&trans, 1),
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1682 F77_CONST_CHAR_ARG2 (&dia, 1),
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1683 nr, b_nc, tmp_data, nr,
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1684 result, nr, info
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1685 F77_CHAR_ARG_LEN (1)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1686 F77_CHAR_ARG_LEN (1)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1687 F77_CHAR_ARG_LEN (1)));
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1688 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1689 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1690 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1691 else
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1692 (*current_liboctave_error_handler) ("incorrect matrix type");
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1693 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1694
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1695 return retval;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1696 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1697
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1698 FloatMatrix
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1699 FloatMatrix::fsolve (MatrixType &mattype, const FloatMatrix& b, octave_idx_type& info,
7797 f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1700 float& rcon, solve_singularity_handler sing_handler,
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1701 bool calc_cond) const
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1702 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1703 FloatMatrix retval;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1704
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1705 octave_idx_type nr = rows ();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1706 octave_idx_type nc = cols ();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1707
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1708 if (nr != nc \|\| nr != b.rows ())
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1709 (*current_liboctave_error_handler)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1710 ("matrix dimension mismatch solution of linear equations");
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1711 else if (nr == 0 \|\| b.cols () == 0)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1712 retval = FloatMatrix (nc, b.cols (), 0.0);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1713 else
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1714 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1715 volatile int typ = mattype.type ();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1716
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1717 // Calculate the norm of the matrix, for later use.
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1718 float anorm = -1.;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1719
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1720 if (typ == MatrixType::Hermitian)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1721 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1722 info = 0;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1723 char job = 'L';
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1724 FloatMatrix atmp = *this;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1725 float *tmp_data = atmp.fortran_vec ();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1726 anorm = atmp.abs().sum().row(static_cast<octave_idx_type>(0)).max();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1727
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1728 F77_XFCN (spotrf, SPOTRF, (F77_CONST_CHAR_ARG2 (&job, 1), nr,
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1729 tmp_data, nr, info
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1730 F77_CHAR_ARG_LEN (1)));
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1731
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1732 // Throw-away extra info LAPACK gives so as to not change output.
7797 f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1733 rcon = 0.0;
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1734 if (info != 0)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1735 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1736 info = -2;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1737
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1738 mattype.mark_as_unsymmetric ();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1739 typ = MatrixType::Full;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1740 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1741 else
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1742 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1743 if (calc_cond)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1744 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1745 Array<float> z (3 * nc);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1746 float *pz = z.fortran_vec ();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1747 Array<octave_idx_type> iz (nc);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1748 octave_idx_type *piz = iz.fortran_vec ();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1749
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1750 F77_XFCN (spocon, SPOCON, (F77_CONST_CHAR_ARG2 (&job, 1),
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1751 nr, tmp_data, nr, anorm,
7797 f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1752 rcon, pz, piz, info
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1753 F77_CHAR_ARG_LEN (1)));
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1754
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1755 if (info != 0)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1756 info = -2;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1757
7797 f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1758 volatile float rcond_plus_one = rcon + 1.0;
f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1759
f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1760 if (rcond_plus_one == 1.0 \|\| xisnan (rcon))
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1761 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1762 info = -2;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1763
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1764 if (sing_handler)
7797 f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1765 sing_handler (rcon);
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1766 else
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1767 (*current_liboctave_error_handler)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1768 ("matrix singular to machine precision, rcond = %g",
7797 f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1769 rcon);
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1770 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1771 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1772
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1773 if (info == 0)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1774 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1775 retval = b;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1776 float *result = retval.fortran_vec ();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1777
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1778 octave_idx_type b_nc = b.cols ();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1779
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1780 F77_XFCN (spotrs, SPOTRS, (F77_CONST_CHAR_ARG2 (&job, 1),
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1781 nr, b_nc, tmp_data, nr,
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1782 result, b.rows(), info
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1783 F77_CHAR_ARG_LEN (1)));
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1784 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1785 else
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1786 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1787 mattype.mark_as_unsymmetric ();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1788 typ = MatrixType::Full;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1789 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1790 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1791 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1792
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1793 if (typ == MatrixType::Full)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1794 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1795 info = 0;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1796
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1797 Array<octave_idx_type> ipvt (nr);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1798 octave_idx_type *pipvt = ipvt.fortran_vec ();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1799
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1800 FloatMatrix atmp = *this;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1801 float *tmp_data = atmp.fortran_vec ();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1802 if(anorm < 0.)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1803 anorm = atmp.abs().sum().row(static_cast<octave_idx_type>(0)).max();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1804
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1805 Array<float> z (4 * nc);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1806 float *pz = z.fortran_vec ();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1807 Array<octave_idx_type> iz (nc);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1808 octave_idx_type *piz = iz.fortran_vec ();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1809
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1810 F77_XFCN (sgetrf, SGETRF, (nr, nr, tmp_data, nr, pipvt, info));
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1811
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1812 // Throw-away extra info LAPACK gives so as to not change output.
7797 f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1813 rcon = 0.0;
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1814 if (info != 0)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1815 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1816 info = -2;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1817
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1818 if (sing_handler)
7797 f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1819 sing_handler (rcon);
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1820 else
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1821 (*current_liboctave_error_handler)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1822 ("matrix singular to machine precision");
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1823
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1824 mattype.mark_as_rectangular ();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1825 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1826 else
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1827 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1828 if (calc_cond)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1829 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1830 // Now calculate the condition number for
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1831 // non-singular matrix.
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1832 char job = '1';
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1833 F77_XFCN (sgecon, SGECON, (F77_CONST_CHAR_ARG2 (&job, 1),
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1834 nc, tmp_data, nr, anorm,
7797 f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1835 rcon, pz, piz, info
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1836 F77_CHAR_ARG_LEN (1)));
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1837
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1838 if (info != 0)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1839 info = -2;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1840
7797 f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1841 volatile float rcond_plus_one = rcon + 1.0;
f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1842
f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1843 if (rcond_plus_one == 1.0 \|\| xisnan (rcon))
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1844 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1845 info = -2;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1846
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1847 if (sing_handler)
7797 f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1848 sing_handler (rcon);
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1849 else
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1850 (*current_liboctave_error_handler)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1851 ("matrix singular to machine precision, rcond = %g",
7797 f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1852 rcon);
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1853 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1854 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1855
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1856 if (info == 0)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1857 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1858 retval = b;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1859 float *result = retval.fortran_vec ();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1860
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1861 octave_idx_type b_nc = b.cols ();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1862
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1863 char job = 'N';
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1864 F77_XFCN (sgetrs, SGETRS, (F77_CONST_CHAR_ARG2 (&job, 1),
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1865 nr, b_nc, tmp_data, nr,
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1866 pipvt, result, b.rows(), info
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1867 F77_CHAR_ARG_LEN (1)));
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1868 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1869 else
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1870 mattype.mark_as_rectangular ();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1871 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1872 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1873 else if (typ != MatrixType::Hermitian)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1874 (*current_liboctave_error_handler) ("incorrect matrix type");
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1875 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1876
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1877 return retval;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1878 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1879
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1880 FloatMatrix
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1881 FloatMatrix::solve (MatrixType &typ, const FloatMatrix& b) const
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1882 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1883 octave_idx_type info;
7797 f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1884 float rcon;
f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1885 return solve (typ, b, info, rcon, 0);
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1886 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1887
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1888 FloatMatrix
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1889 FloatMatrix::solve (MatrixType &typ, const FloatMatrix& b, octave_idx_type& info,
7797 f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1890 float& rcon) const
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1891 {
7797 f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1892 return solve (typ, b, info, rcon, 0);
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1893 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1894
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1895 FloatMatrix
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1896 FloatMatrix::solve (MatrixType &mattype, const FloatMatrix& b, octave_idx_type& info,
7797 f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1897 float& rcon, solve_singularity_handler sing_handler,
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1898 bool singular_fallback) const
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1899 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1900 FloatMatrix retval;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1901 int typ = mattype.type ();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1902
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1903 if (typ == MatrixType::Unknown)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1904 typ = mattype.type (*this);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1905
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1906 // Only calculate the condition number for LU/Cholesky
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1907 if (typ == MatrixType::Upper \|\| typ == MatrixType::Permuted_Upper)
7797 f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1908 retval = utsolve (mattype, b, info, rcon, sing_handler, false);
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1909 else if (typ == MatrixType::Lower \|\| typ == MatrixType::Permuted_Lower)
7797 f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1910 retval = ltsolve (mattype, b, info, rcon, sing_handler, false);
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1911 else if (typ == MatrixType::Full \|\| typ == MatrixType::Hermitian)
7797 f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1912 retval = fsolve (mattype, b, info, rcon, sing_handler, true);
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1913 else if (typ != MatrixType::Rectangular)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1914 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1915 (*current_liboctave_error_handler) ("unknown matrix type");
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1916 return FloatMatrix ();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1917 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1918
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1919 // Rectangular or one of the above solvers flags a singular matrix
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1920 if (singular_fallback && mattype.type () == MatrixType::Rectangular)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1921 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1922 octave_idx_type rank;
7797 f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1923 retval = lssolve (b, info, rank, rcon);
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1924 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1925
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1926 return retval;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1927 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1928
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1929 FloatComplexMatrix
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1930 FloatMatrix::solve (MatrixType &typ, const FloatComplexMatrix& b) const
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1931 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1932 FloatComplexMatrix tmp (*this);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1933 return tmp.solve (typ, b);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1934 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1935
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1936 FloatComplexMatrix
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1937 FloatMatrix::solve (MatrixType &typ, const FloatComplexMatrix& b,
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1938 octave_idx_type& info) const
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1939 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1940 FloatComplexMatrix tmp (*this);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1941 return tmp.solve (typ, b, info);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1942 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1943
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1944 FloatComplexMatrix
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1945 FloatMatrix::solve (MatrixType &typ, const FloatComplexMatrix& b, octave_idx_type& info,
7797 f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1946 float& rcon) const
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1947 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1948 FloatComplexMatrix tmp (*this);
7797 f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1949 return tmp.solve (typ, b, info, rcon);
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1950 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1951
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1952 FloatComplexMatrix
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1953 FloatMatrix::solve (MatrixType &typ, const FloatComplexMatrix& b, octave_idx_type& info,
7797 f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1954 float& rcon, solve_singularity_handler sing_handler,
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1955 bool singular_fallback) const
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1956 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1957 FloatComplexMatrix tmp (*this);
7797 f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1958 return tmp.solve (typ, b, info, rcon, sing_handler, singular_fallback);
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1959 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1960
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1961 FloatColumnVector
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1962 FloatMatrix::solve (MatrixType &typ, const FloatColumnVector& b) const
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1963 {
7797 f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1964 octave_idx_type info; float rcon;
f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1965 return solve (typ, b, info, rcon);
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1966 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1967
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1968 FloatColumnVector
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1969 FloatMatrix::solve (MatrixType &typ, const FloatColumnVector& b,
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1970 octave_idx_type& info) const
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1971 {
7797 f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1972 float rcon;
f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1973 return solve (typ, b, info, rcon);
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1974 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1975
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1976 FloatColumnVector
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1977 FloatMatrix::solve (MatrixType &typ, const FloatColumnVector& b, octave_idx_type& info,
7797 f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1978 float& rcon) const
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1979 {
7797 f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1980 return solve (typ, b, info, rcon, 0);
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1981 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1982
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1983 FloatColumnVector
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1984 FloatMatrix::solve (MatrixType &typ, const FloatColumnVector& b, octave_idx_type& info,
7797 f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1985 float& rcon, solve_singularity_handler sing_handler) const
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1986 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1987 FloatMatrix tmp (b);
7797 f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1988 return solve (typ, tmp, info, rcon, sing_handler).column(static_cast<octave_idx_type> (0));
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1989 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1990
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1991 FloatComplexColumnVector
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1992 FloatMatrix::solve (MatrixType &typ, const FloatComplexColumnVector& b) const
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1993 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1994 FloatComplexMatrix tmp (*this);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1995 return tmp.solve (typ, b);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1996 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1997
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1998 FloatComplexColumnVector
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	1999 FloatMatrix::solve (MatrixType &typ, const FloatComplexColumnVector& b,
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2000 octave_idx_type& info) const
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2001 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2002 FloatComplexMatrix tmp (*this);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2003 return tmp.solve (typ, b, info);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2004 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2005
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2006 FloatComplexColumnVector
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2007 FloatMatrix::solve (MatrixType &typ, const FloatComplexColumnVector& b,
7797 f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	2008 octave_idx_type& info, float& rcon) const
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2009 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2010 FloatComplexMatrix tmp (*this);
7797 f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	2011 return tmp.solve (typ, b, info, rcon);
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2012 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2013
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2014 FloatComplexColumnVector
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2015 FloatMatrix::solve (MatrixType &typ, const FloatComplexColumnVector& b,
7797 f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	2016 octave_idx_type& info, float& rcon,
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2017 solve_singularity_handler sing_handler) const
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2018 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2019 FloatComplexMatrix tmp (*this);
7797 f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	2020 return tmp.solve(typ, b, info, rcon, sing_handler);
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2021 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2022
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2023 FloatMatrix
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2024 FloatMatrix::solve (const FloatMatrix& b) const
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2025 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2026 octave_idx_type info;
7797 f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	2027 float rcon;
f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	2028 return solve (b, info, rcon, 0);
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2029 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2030
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2031 FloatMatrix
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2032 FloatMatrix::solve (const FloatMatrix& b, octave_idx_type& info) const
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2033 {
7797 f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	2034 float rcon;
f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	2035 return solve (b, info, rcon, 0);
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2036 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2037
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2038 FloatMatrix
7797 f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	2039 FloatMatrix::solve (const FloatMatrix& b, octave_idx_type& info, float& rcon) const
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2040 {
7797 f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	2041 return solve (b, info, rcon, 0);
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2042 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2043
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2044 FloatMatrix
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2045 FloatMatrix::solve (const FloatMatrix& b, octave_idx_type& info,
7797 f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	2046 float& rcon, solve_singularity_handler sing_handler) const
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2047 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2048 MatrixType mattype (*this);
7797 f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	2049 return solve (mattype, b, info, rcon, sing_handler);
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2050 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2051
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2052 FloatComplexMatrix
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2053 FloatMatrix::solve (const FloatComplexMatrix& b) const
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2054 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2055 FloatComplexMatrix tmp (*this);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2056 return tmp.solve (b);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2057 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2058
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2059 FloatComplexMatrix
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2060 FloatMatrix::solve (const FloatComplexMatrix& b, octave_idx_type& info) const
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2061 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2062 FloatComplexMatrix tmp (*this);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2063 return tmp.solve (b, info);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2064 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2065
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2066 FloatComplexMatrix
7797 f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	2067 FloatMatrix::solve (const FloatComplexMatrix& b, octave_idx_type& info, float& rcon) const
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2068 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2069 FloatComplexMatrix tmp (*this);
7797 f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	2070 return tmp.solve (b, info, rcon);
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2071 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2072
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2073 FloatComplexMatrix
7797 f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	2074 FloatMatrix::solve (const FloatComplexMatrix& b, octave_idx_type& info, float& rcon,
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2075 solve_singularity_handler sing_handler) const
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2076 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2077 FloatComplexMatrix tmp (*this);
7797 f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	2078 return tmp.solve (b, info, rcon, sing_handler);
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2079 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2080
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2081 FloatColumnVector
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2082 FloatMatrix::solve (const FloatColumnVector& b) const
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2083 {
7797 f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	2084 octave_idx_type info; float rcon;
f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	2085 return solve (b, info, rcon);
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2086 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2087
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2088 FloatColumnVector
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2089 FloatMatrix::solve (const FloatColumnVector& b, octave_idx_type& info) const
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2090 {
7797 f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	2091 float rcon;
f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	2092 return solve (b, info, rcon);
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2093 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2094
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2095 FloatColumnVector
7797 f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	2096 FloatMatrix::solve (const FloatColumnVector& b, octave_idx_type& info, float& rcon) const
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2097 {
7797 f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	2098 return solve (b, info, rcon, 0);
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2099 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2100
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2101 FloatColumnVector
7797 f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	2102 FloatMatrix::solve (const FloatColumnVector& b, octave_idx_type& info, float& rcon,
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2103 solve_singularity_handler sing_handler) const
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2104 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2105 MatrixType mattype (*this);
7797 f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	2106 return solve (mattype, b, info, rcon, sing_handler);
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2107 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2108
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2109 FloatComplexColumnVector
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2110 FloatMatrix::solve (const FloatComplexColumnVector& b) const
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2111 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2112 FloatComplexMatrix tmp (*this);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2113 return tmp.solve (b);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2114 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2115
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2116 FloatComplexColumnVector
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2117 FloatMatrix::solve (const FloatComplexColumnVector& b, octave_idx_type& info) const
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2118 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2119 FloatComplexMatrix tmp (*this);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2120 return tmp.solve (b, info);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2121 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2122
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2123 FloatComplexColumnVector
7797 f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	2124 FloatMatrix::solve (const FloatComplexColumnVector& b, octave_idx_type& info, float& rcon) const
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2125 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2126 FloatComplexMatrix tmp (*this);
7797 f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	2127 return tmp.solve (b, info, rcon);
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2128 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2129
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2130 FloatComplexColumnVector
7797 f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	2131 FloatMatrix::solve (const FloatComplexColumnVector& b, octave_idx_type& info, float& rcon,
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2132 solve_singularity_handler sing_handler) const
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2133 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2134 FloatComplexMatrix tmp (*this);
7797 f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	2135 return tmp.solve (b, info, rcon, sing_handler);
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2136 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2137
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2138 FloatMatrix
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2139 FloatMatrix::lssolve (const FloatMatrix& b) const
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2140 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2141 octave_idx_type info;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2142 octave_idx_type rank;
7797 f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	2143 float rcon;
f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	2144 return lssolve (b, info, rank, rcon);
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2145 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2146
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2147 FloatMatrix
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2148 FloatMatrix::lssolve (const FloatMatrix& b, octave_idx_type& info) const
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2149 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2150 octave_idx_type rank;
7797 f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	2151 float rcon;
f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	2152 return lssolve (b, info, rank, rcon);
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2153 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2154
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2155 FloatMatrix
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2156 FloatMatrix::lssolve (const FloatMatrix& b, octave_idx_type& info,
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2157 octave_idx_type& rank) const
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2158 {
7797 f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	2159 float rcon;
f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	2160 return lssolve (b, info, rank, rcon);
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2161 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2162
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2163 FloatMatrix
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2164 FloatMatrix::lssolve (const FloatMatrix& b, octave_idx_type& info,
7797 f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	2165 octave_idx_type& rank, float &rcon) const
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2166 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2167 FloatMatrix retval;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2168
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2169 octave_idx_type nrhs = b.cols ();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2170
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2171 octave_idx_type m = rows ();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2172 octave_idx_type n = cols ();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2173
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2174 if (m != b.rows ())
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2175 (*current_liboctave_error_handler)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2176 ("matrix dimension mismatch solution of linear equations");
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2177 else if (m == 0 \|\| n == 0 \|\| b.cols () == 0)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2178 retval = FloatMatrix (n, b.cols (), 0.0);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2179 else
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2180 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2181 volatile octave_idx_type minmn = (m < n ? m : n);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2182 octave_idx_type maxmn = m > n ? m : n;
7797 f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	2183 rcon = -1.0;
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2184 if (m != n)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2185 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2186 retval = FloatMatrix (maxmn, nrhs, 0.0);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2187
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2188 for (octave_idx_type j = 0; j < nrhs; j++)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2189 for (octave_idx_type i = 0; i < m; i++)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2190 retval.elem (i, j) = b.elem (i, j);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2191 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2192 else
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2193 retval = b;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2194
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2195 FloatMatrix atmp = *this;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2196 float *tmp_data = atmp.fortran_vec ();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2197
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2198 float *pretval = retval.fortran_vec ();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2199 Array<float> s (minmn);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2200 float *ps = s.fortran_vec ();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2201
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2202 // Ask DGELSD what the dimension of WORK should be.
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2203 octave_idx_type lwork = -1;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2204
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2205 Array<float> work (1);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2206
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2207 octave_idx_type smlsiz;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2208 F77_FUNC (xilaenv, XILAENV) (9, F77_CONST_CHAR_ARG2 ("SGELSD", 6),
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2209 F77_CONST_CHAR_ARG2 (" ", 1),
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2210 0, 0, 0, 0, smlsiz
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2211 F77_CHAR_ARG_LEN (6)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2212 F77_CHAR_ARG_LEN (1));
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2213
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2214 octave_idx_type mnthr;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2215 F77_FUNC (xilaenv, XILAENV) (6, F77_CONST_CHAR_ARG2 ("SGELSD", 6),
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2216 F77_CONST_CHAR_ARG2 (" ", 1),
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2217 m, n, nrhs, -1, mnthr
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2218 F77_CHAR_ARG_LEN (6)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2219 F77_CHAR_ARG_LEN (1));
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2220
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2221 // We compute the size of iwork because DGELSD in older versions
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2222 // of LAPACK does not return it on a query call.
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2223 float dminmn = static_cast<float> (minmn);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2224 float dsmlsizp1 = static_cast<float> (smlsiz+1);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2225 #if defined (HAVE_LOG2)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2226 float tmp = log2 (dminmn / dsmlsizp1);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2227 #else
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2228 float tmp = log (dminmn / dsmlsizp1) / log (2.0);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2229 #endif
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2230 octave_idx_type nlvl = static_cast<octave_idx_type> (tmp) + 1;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2231 if (nlvl < 0)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2232 nlvl = 0;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2233
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2234 octave_idx_type liwork = 3 * minmn * nlvl + 11 * minmn;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2235 if (liwork < 1)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2236 liwork = 1;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2237 Array<octave_idx_type> iwork (liwork);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2238 octave_idx_type* piwork = iwork.fortran_vec ();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2239
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2240 F77_XFCN (sgelsd, SGELSD, (m, n, nrhs, tmp_data, m, pretval, maxmn,
7797 f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	2241 ps, rcon, rank, work.fortran_vec (),
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2242 lwork, piwork, info));
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2243
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2244 // The workspace query is broken in at least LAPACK 3.0.0
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2245 // through 3.1.1 when n >= mnthr. The obtuse formula below
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2246 // should provide sufficient workspace for DGELSD to operate
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2247 // efficiently.
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2248 if (n >= mnthr)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2249 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2250 const octave_idx_type wlalsd
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2251 = 9m + 2msmlsiz + 8mnlvl + mnrhs + (smlsiz+1)*(smlsiz+1);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2252
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2253 octave_idx_type addend = m;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2254
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2255 if (2*m-4 > addend)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2256 addend = 2*m-4;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2257
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2258 if (nrhs > addend)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2259 addend = nrhs;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2260
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2261 if (n-3*m > addend)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2262 addend = n-3*m;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2263
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2264 if (wlalsd > addend)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2265 addend = wlalsd;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2266
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2267 const octave_idx_type lworkaround = 4m + mm + addend;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2268
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2269 if (work(0) < lworkaround)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2270 work(0) = lworkaround;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2271 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2272 else if (m >= n)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2273 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2274 octave_idx_type lworkaround
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2275 = 12n + 2nsmlsiz + 8nnlvl + nnrhs + (smlsiz+1)*(smlsiz+1);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2276
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2277 if (work(0) < lworkaround)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2278 work(0) = lworkaround;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2279 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2280
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2281 lwork = static_cast<octave_idx_type> (work(0));
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2282 work.resize (lwork);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2283
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2284 F77_XFCN (sgelsd, SGELSD, (m, n, nrhs, tmp_data, m, pretval,
7797 f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	2285 maxmn, ps, rcon, rank,
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2286 work.fortran_vec (), lwork,
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2287 piwork, info));
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2288
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2289 if (rank < minmn)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2290 (*current_liboctave_warning_handler)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2291 ("dgelsd: rank deficient %dx%d matrix, rank = %d", m, n, rank);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2292 if (s.elem (0) == 0.0)
7797 f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	2293 rcon = 0.0;
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2294 else
7797 f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	2295 rcon = s.elem (minmn - 1) / s.elem (0);
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2296
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2297 retval.resize (n, nrhs);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2298 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2299
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2300 return retval;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2301 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2302
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2303 FloatComplexMatrix
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2304 FloatMatrix::lssolve (const FloatComplexMatrix& b) const
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2305 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2306 FloatComplexMatrix tmp (*this);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2307 octave_idx_type info;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2308 octave_idx_type rank;
7797 f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	2309 float rcon;
f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	2310 return tmp.lssolve (b, info, rank, rcon);
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2311 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2312
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2313 FloatComplexMatrix
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2314 FloatMatrix::lssolve (const FloatComplexMatrix& b, octave_idx_type& info) const
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2315 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2316 FloatComplexMatrix tmp (*this);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2317 octave_idx_type rank;
7797 f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	2318 float rcon;
f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	2319 return tmp.lssolve (b, info, rank, rcon);
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2320 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2321
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2322 FloatComplexMatrix
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2323 FloatMatrix::lssolve (const FloatComplexMatrix& b, octave_idx_type& info,
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2324 octave_idx_type& rank) const
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2325 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2326 FloatComplexMatrix tmp (*this);
7797 f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	2327 float rcon;
f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	2328 return tmp.lssolve (b, info, rank, rcon);
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2329 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2330
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2331 FloatComplexMatrix
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2332 FloatMatrix::lssolve (const FloatComplexMatrix& b, octave_idx_type& info,
7797 f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	2333 octave_idx_type& rank, float& rcon) const
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2334 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2335 FloatComplexMatrix tmp (*this);
7797 f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	2336 return tmp.lssolve (b, info, rank, rcon);
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2337 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2338
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2339 FloatColumnVector
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2340 FloatMatrix::lssolve (const FloatColumnVector& b) const
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2341 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2342 octave_idx_type info;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2343 octave_idx_type rank;
7797 f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	2344 float rcon;
f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	2345 return lssolve (b, info, rank, rcon);
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2346 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2347
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2348 FloatColumnVector
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2349 FloatMatrix::lssolve (const FloatColumnVector& b, octave_idx_type& info) const
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2350 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2351 octave_idx_type rank;
7797 f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	2352 float rcon;
f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	2353 return lssolve (b, info, rank, rcon);
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2354 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2355
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2356 FloatColumnVector
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2357 FloatMatrix::lssolve (const FloatColumnVector& b, octave_idx_type& info,
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2358 octave_idx_type& rank) const
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2359 {
7797 f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	2360 float rcon;
f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	2361 return lssolve (b, info, rank, rcon);
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2362 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2363
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2364 FloatColumnVector
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2365 FloatMatrix::lssolve (const FloatColumnVector& b, octave_idx_type& info,
7797 f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	2366 octave_idx_type& rank, float &rcon) const
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2367 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2368 FloatColumnVector retval;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2369
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2370 octave_idx_type nrhs = 1;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2371
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2372 octave_idx_type m = rows ();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2373 octave_idx_type n = cols ();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2374
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2375 if (m != b.length ())
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2376 (*current_liboctave_error_handler)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2377 ("matrix dimension mismatch solution of linear equations");
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2378 else if (m == 0 \|\| n == 0)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2379 retval = FloatColumnVector (n, 0.0);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2380 else
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2381 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2382 volatile octave_idx_type minmn = (m < n ? m : n);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2383 octave_idx_type maxmn = m > n ? m : n;
7797 f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	2384 rcon = -1.0;
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2385
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2386 if (m != n)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2387 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2388 retval = FloatColumnVector (maxmn, 0.0);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2389
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2390 for (octave_idx_type i = 0; i < m; i++)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2391 retval.elem (i) = b.elem (i);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2392 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2393 else
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2394 retval = b;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2395
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2396 FloatMatrix atmp = *this;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2397 float *tmp_data = atmp.fortran_vec ();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2398
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2399 float *pretval = retval.fortran_vec ();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2400 Array<float> s (minmn);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2401 float *ps = s.fortran_vec ();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2402
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2403 // Ask DGELSD what the dimension of WORK should be.
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2404 octave_idx_type lwork = -1;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2405
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2406 Array<float> work (1);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2407
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2408 octave_idx_type smlsiz;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2409 F77_FUNC (xilaenv, XILAENV) (9, F77_CONST_CHAR_ARG2 ("SGELSD", 6),
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2410 F77_CONST_CHAR_ARG2 (" ", 1),
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2411 0, 0, 0, 0, smlsiz
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2412 F77_CHAR_ARG_LEN (6)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2413 F77_CHAR_ARG_LEN (1));
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2414
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2415 // We compute the size of iwork because DGELSD in older versions
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2416 // of LAPACK does not return it on a query call.
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2417 float dminmn = static_cast<float> (minmn);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2418 float dsmlsizp1 = static_cast<float> (smlsiz+1);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2419 #if defined (HAVE_LOG2)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2420 float tmp = log2 (dminmn / dsmlsizp1);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2421 #else
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2422 float tmp = log (dminmn / dsmlsizp1) / log (2.0);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2423 #endif
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2424 octave_idx_type nlvl = static_cast<octave_idx_type> (tmp) + 1;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2425 if (nlvl < 0)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2426 nlvl = 0;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2427
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2428 octave_idx_type liwork = 3 * minmn * nlvl + 11 * minmn;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2429 if (liwork < 1)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2430 liwork = 1;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2431 Array<octave_idx_type> iwork (liwork);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2432 octave_idx_type* piwork = iwork.fortran_vec ();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2433
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2434 F77_XFCN (sgelsd, SGELSD, (m, n, nrhs, tmp_data, m, pretval, maxmn,
7797 f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	2435 ps, rcon, rank, work.fortran_vec (),
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2436 lwork, piwork, info));
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2437
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2438 lwork = static_cast<octave_idx_type> (work(0));
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2439 work.resize (lwork);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2440
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2441 F77_XFCN (sgelsd, SGELSD, (m, n, nrhs, tmp_data, m, pretval,
7797 f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	2442 maxmn, ps, rcon, rank,
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2443 work.fortran_vec (), lwork,
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2444 piwork, info));
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2445
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2446 if (rank < minmn)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2447 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2448 if (rank < minmn)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2449 (*current_liboctave_warning_handler)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2450 ("dgelsd: rank deficient %dx%d matrix, rank = %d", m, n, rank);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2451 if (s.elem (0) == 0.0)
7797 f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	2452 rcon = 0.0;
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2453 else
7797 f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	2454 rcon = s.elem (minmn - 1) / s.elem (0);
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2455 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2456
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2457 retval.resize (n, nrhs);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2458 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2459
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2460 return retval;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2461 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2462
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2463 FloatComplexColumnVector
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2464 FloatMatrix::lssolve (const FloatComplexColumnVector& b) const
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2465 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2466 FloatComplexMatrix tmp (*this);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2467 octave_idx_type info;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2468 octave_idx_type rank;
7797 f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	2469 float rcon;
f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	2470 return tmp.lssolve (b, info, rank, rcon);
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2471 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2472
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2473 FloatComplexColumnVector
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2474 FloatMatrix::lssolve (const FloatComplexColumnVector& b, octave_idx_type& info) const
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2475 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2476 FloatComplexMatrix tmp (*this);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2477 octave_idx_type rank;
7797 f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	2478 float rcon;
f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	2479 return tmp.lssolve (b, info, rank, rcon);
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2480 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2481
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2482 FloatComplexColumnVector
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2483 FloatMatrix::lssolve (const FloatComplexColumnVector& b, octave_idx_type& info,
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2484 octave_idx_type& rank) const
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2485 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2486 FloatComplexMatrix tmp (*this);
7797 f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	2487 float rcon;
f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	2488 return tmp.lssolve (b, info, rank, rcon);
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2489 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2490
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2491 FloatComplexColumnVector
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2492 FloatMatrix::lssolve (const FloatComplexColumnVector& b, octave_idx_type& info,
7797 f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	2493 octave_idx_type& rank, float &rcon) const
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2494 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2495 FloatComplexMatrix tmp (*this);
7797 f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	2496 return tmp.lssolve (b, info, rank, rcon);
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2497 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2498
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2499 // Constants for matrix exponential calculation.
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2500
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2501 static float padec [] =
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2502 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2503 5.0000000000000000e-1,
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2504 1.1666666666666667e-1,
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2505 1.6666666666666667e-2,
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2506 1.6025641025641026e-3,
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2507 1.0683760683760684e-4,
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2508 4.8562548562548563e-6,
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2509 1.3875013875013875e-7,
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2510 1.9270852604185938e-9,
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2511 };
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2512
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2513 static void
7797 f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	2514 solve_singularity_warning (float rcon)
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2515 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2516 (*current_liboctave_warning_handler)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2517 ("singular matrix encountered in expm calculation, rcond = %g",
7797 f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	2518 rcon);
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2519 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2520
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2521 FloatMatrix
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2522 FloatMatrix::expm (void) const
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2523 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2524 FloatMatrix retval;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2525
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2526 FloatMatrix m = *this;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2527
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2528 if (numel () == 1)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2529 return FloatMatrix (1, 1, exp (m(0)));
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2530
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2531 octave_idx_type nc = columns ();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2532
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2533 // Preconditioning step 1: trace normalization to reduce dynamic
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2534 // range of poles, but avoid making stable eigenvalues unstable.
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2535
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2536 // trace shift value
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2537 volatile float trshift = 0.0;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2538
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2539 for (octave_idx_type i = 0; i < nc; i++)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2540 trshift += m.elem (i, i);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2541
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2542 trshift /= nc;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2543
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2544 if (trshift > 0.0)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2545 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2546 for (octave_idx_type i = 0; i < nc; i++)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2547 m.elem (i, i) -= trshift;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2548 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2549
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2550 // Preconditioning step 2: balancing; code follows development
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2551 // in AEPBAL
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2552
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2553 float *p_m = m.fortran_vec ();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2554
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2555 octave_idx_type info, ilo, ihi, ilos, ihis;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2556 Array<float> dpermute (nc);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2557 Array<float> dscale (nc);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2558
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2559 // permutation first
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2560 char job = 'P';
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2561 F77_XFCN (sgebal, SGEBAL, (F77_CONST_CHAR_ARG2 (&job, 1),
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2562 nc, p_m, nc, ilo, ihi,
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2563 dpermute.fortran_vec (), info
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2564 F77_CHAR_ARG_LEN (1)));
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2565
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2566 // then scaling
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2567 job = 'S';
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2568 F77_XFCN (sgebal, SGEBAL, (F77_CONST_CHAR_ARG2 (&job, 1),
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2569 nc, p_m, nc, ilos, ihis,
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2570 dscale.fortran_vec (), info
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2571 F77_CHAR_ARG_LEN (1)));
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2572
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2573 // Preconditioning step 3: scaling.
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2574
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2575 FloatColumnVector work(nc);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2576 float inf_norm;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2577
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2578 F77_XFCN (xslange, XSLANGE, (F77_CONST_CHAR_ARG2 ("I", 1),
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2579 nc, nc, m.fortran_vec (), nc,
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2580 work.fortran_vec (), inf_norm
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2581 F77_CHAR_ARG_LEN (1)));
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2582
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2583 octave_idx_type sqpow = static_cast<octave_idx_type> (inf_norm > 0.0
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2584 ? (1.0 + log (inf_norm) / log (2.0))
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2585 : 0.0);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2586
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2587 // Check whether we need to square at all.
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2588
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2589 if (sqpow < 0)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2590 sqpow = 0;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2591
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2592 if (sqpow > 0)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2593 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2594 if (sqpow > 1023)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2595 sqpow = 1023;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2596
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2597 float scale_factor = 1.0;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2598 for (octave_idx_type i = 0; i < sqpow; i++)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2599 scale_factor *= 2.0;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2600
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2601 m = m / scale_factor;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2602 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2603
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2604 // npp, dpp: pade' approx polynomial matrices.
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2605
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2606 FloatMatrix npp (nc, nc, 0.0);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2607 float *pnpp = npp.fortran_vec ();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2608 FloatMatrix dpp = npp;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2609 float *pdpp = dpp.fortran_vec ();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2610
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2611 // Now powers a^8 ... a^1.
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2612
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2613 octave_idx_type minus_one_j = -1;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2614 for (octave_idx_type j = 7; j >= 0; j--)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2615 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2616 for (octave_idx_type i = 0; i < nc; i++)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2617 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2618 octave_idx_type k = i * nc + i;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2619 pnpp[k] += padec[j];
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2620 pdpp[k] += minus_one_j * padec[j];
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2621 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2622
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2623 npp = m * npp;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2624 pnpp = npp.fortran_vec ();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2625
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2626 dpp = m * dpp;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2627 pdpp = dpp.fortran_vec ();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2628
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2629 minus_one_j *= -1;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2630 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2631
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2632 // Zero power.
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2633
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2634 dpp = -dpp;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2635 for (octave_idx_type j = 0; j < nc; j++)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2636 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2637 npp.elem (j, j) += 1.0;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2638 dpp.elem (j, j) += 1.0;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2639 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2640
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2641 // Compute pade approximation = inverse (dpp) * npp.
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2642
7797 f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	2643 float rcon;
f42c6f8d6d8e Extend rcond function to single precision types David Bateman <dbateman@free.fr> parents: 7789 diff changeset	2644 retval = dpp.solve (npp, info, rcon, solve_singularity_warning);
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2645
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2646 if (info < 0)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2647 return retval;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2648
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2649 // Reverse preconditioning step 3: repeated squaring.
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2650
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2651 while (sqpow)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2652 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2653 retval = retval * retval;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2654 sqpow--;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2655 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2656
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2657 // Reverse preconditioning step 2: inverse balancing.
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2658 // apply inverse scaling to computed exponential
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2659 for (octave_idx_type i = 0; i < nc; i++)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2660 for (octave_idx_type j = 0; j < nc; j++)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2661 retval(i,j) *= dscale(i) / dscale(j);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2662
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2663 OCTAVE_QUIT;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2664
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2665 // construct balancing permutation vector
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2666 Array<octave_idx_type> iperm (nc);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2667 for (octave_idx_type i = 0; i < nc; i++)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2668 iperm(i) = i; // identity permutation
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2669
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2670 // leading permutations in forward order
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2671 for (octave_idx_type i = 0; i < (ilo-1); i++)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2672 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2673 octave_idx_type swapidx = static_cast<octave_idx_type> (dpermute(i)) - 1;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2674 octave_idx_type tmp = iperm(i);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2675 iperm(i) = iperm (swapidx);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2676 iperm(swapidx) = tmp;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2677 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2678
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2679 // construct inverse balancing permutation vector
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2680 Array<octave_idx_type> invpvec (nc);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2681 for (octave_idx_type i = 0; i < nc; i++)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2682 invpvec(iperm(i)) = i; // Thanks to R. A. Lippert for this method
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2683
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2684 OCTAVE_QUIT;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2685
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2686 FloatMatrix tmpMat = retval;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2687 for (octave_idx_type i = 0; i < nc; i++)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2688 for (octave_idx_type j = 0; j < nc; j++)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2689 retval(i,j) = tmpMat(invpvec(i),invpvec(j));
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2690
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2691 OCTAVE_QUIT;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2692
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2693 for (octave_idx_type i = 0; i < nc; i++)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2694 iperm(i) = i; // identity permutation
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2695
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2696 // trailing permutations must be done in reverse order
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2697 for (octave_idx_type i = nc - 1; i >= ihi; i--)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2698 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2699 octave_idx_type swapidx = static_cast<octave_idx_type> (dpermute(i)) - 1;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2700 octave_idx_type tmp = iperm(i);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2701 iperm(i) = iperm(swapidx);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2702 iperm(swapidx) = tmp;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2703 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2704
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2705 // construct inverse balancing permutation vector
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2706 for (octave_idx_type i = 0; i < nc; i++)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2707 invpvec(iperm(i)) = i; // Thanks to R. A. Lippert for this method
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2708
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2709 OCTAVE_QUIT;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2710
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2711 tmpMat = retval;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2712 for (octave_idx_type i = 0; i < nc; i++)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2713 for (octave_idx_type j = 0; j < nc; j++)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2714 retval(i,j) = tmpMat(invpvec(i),invpvec(j));
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2715
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2716 // Reverse preconditioning step 1: fix trace normalization.
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2717
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2718 if (trshift > 0.0)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2719 retval = expf (trshift) * retval;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2720
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2721 return retval;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2722 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2723
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2724 FloatMatrix&
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2725 FloatMatrix::operator += (const FloatDiagMatrix& a)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2726 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2727 octave_idx_type nr = rows ();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2728 octave_idx_type nc = cols ();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2729
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2730 octave_idx_type a_nr = a.rows ();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2731 octave_idx_type a_nc = a.cols ();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2732
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2733 if (nr != a_nr \|\| nc != a_nc)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2734 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2735 gripe_nonconformant ("operator +=", nr, nc, a_nr, a_nc);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2736 return *this;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2737 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2738
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2739 for (octave_idx_type i = 0; i < a.length (); i++)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2740 elem (i, i) += a.elem (i, i);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2741
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2742 return *this;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2743 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2744
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2745 FloatMatrix&
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2746 FloatMatrix::operator -= (const FloatDiagMatrix& a)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2747 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2748 octave_idx_type nr = rows ();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2749 octave_idx_type nc = cols ();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2750
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2751 octave_idx_type a_nr = a.rows ();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2752 octave_idx_type a_nc = a.cols ();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2753
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2754 if (nr != a_nr \|\| nc != a_nc)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2755 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2756 gripe_nonconformant ("operator -=", nr, nc, a_nr, a_nc);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2757 return *this;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2758 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2759
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2760 for (octave_idx_type i = 0; i < a.length (); i++)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2761 elem (i, i) -= a.elem (i, i);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2762
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2763 return *this;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2764 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2765
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2766 // unary operations
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2767
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2768 boolMatrix
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2769 FloatMatrix::operator ! (void) const
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2770 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2771 octave_idx_type nr = rows ();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2772 octave_idx_type nc = cols ();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2773
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2774 boolMatrix b (nr, nc);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2775
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2776 for (octave_idx_type j = 0; j < nc; j++)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2777 for (octave_idx_type i = 0; i < nr; i++)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2778 b.elem (i, j) = ! elem (i, j);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2779
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2780 return b;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2781 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2782
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2783 // column vector by row vector -> matrix operations
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2784
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2785 FloatMatrix
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2786 operator * (const FloatColumnVector& v, const FloatRowVector& a)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2787 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2788 FloatMatrix retval;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2789
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2790 octave_idx_type len = v.length ();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2791
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2792 if (len != 0)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2793 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2794 octave_idx_type a_len = a.length ();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2795
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2796 retval.resize (len, a_len);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2797 float *c = retval.fortran_vec ();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2798
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2799 F77_XFCN (sgemm, SGEMM, (F77_CONST_CHAR_ARG2 ("N", 1),
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2800 F77_CONST_CHAR_ARG2 ("N", 1),
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2801 len, a_len, 1, 1.0, v.data (), len,
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2802 a.data (), 1, 0.0, c, len
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2803 F77_CHAR_ARG_LEN (1)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2804 F77_CHAR_ARG_LEN (1)));
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2805 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2806
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2807 return retval;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2808 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2809
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2810 // other operations.
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2811
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2812 FloatMatrix
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2813 FloatMatrix::map (dmapper fcn) const
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2814 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2815 return MArray2<float>::map<float> (func_ptr (fcn));
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2816 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2817
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2818 FloatComplexMatrix
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2819 FloatMatrix::map (cmapper fcn) const
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2820 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2821 return MArray2<float>::map<FloatComplex> (func_ptr (fcn));
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2822 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2823
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2824 boolMatrix
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2825 FloatMatrix::map (bmapper fcn) const
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2826 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2827 return MArray2<float>::map<bool> (func_ptr (fcn));
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2828 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2829
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2830 bool
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2831 FloatMatrix::any_element_is_negative (bool neg_zero) const
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2832 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2833 octave_idx_type nel = nelem ();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2834
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2835 if (neg_zero)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2836 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2837 for (octave_idx_type i = 0; i < nel; i++)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2838 if (lo_ieee_signbit (elem (i)))
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2839 return true;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2840 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2841 else
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2842 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2843 for (octave_idx_type i = 0; i < nel; i++)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2844 if (elem (i) < 0)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2845 return true;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2846 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2847
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2848 return false;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2849 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2850
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2851
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2852 bool
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2853 FloatMatrix::any_element_is_inf_or_nan (void) const
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2854 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2855 octave_idx_type nel = nelem ();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2856
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2857 for (octave_idx_type i = 0; i < nel; i++)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2858 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2859 float val = elem (i);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2860 if (xisinf (val) \|\| xisnan (val))
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2861 return true;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2862 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2863
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2864 return false;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2865 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2866
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2867 bool
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2868 FloatMatrix::any_element_not_one_or_zero (void) const
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2869 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2870 octave_idx_type nel = nelem ();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2871
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2872 for (octave_idx_type i = 0; i < nel; i++)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2873 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2874 float val = elem (i);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2875 if (val != 0 && val != 1)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2876 return true;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2877 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2878
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2879 return false;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2880 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2881
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2882 bool
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2883 FloatMatrix::all_elements_are_int_or_inf_or_nan (void) const
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2884 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2885 octave_idx_type nel = nelem ();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2886
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2887 for (octave_idx_type i = 0; i < nel; i++)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2888 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2889 float val = elem (i);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2890 if (xisnan (val) \|\| D_NINT (val) == val)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2891 continue;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2892 else
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2893 return false;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2894 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2895
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2896 return true;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2897 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2898
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2899 // Return nonzero if any element of M is not an integer. Also extract
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2900 // the largest and smallest values and return them in MAX_VAL and MIN_VAL.
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2901
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2902 bool
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2903 FloatMatrix::all_integers (float& max_val, float& min_val) const
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2904 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2905 octave_idx_type nel = nelem ();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2906
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2907 if (nel > 0)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2908 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2909 max_val = elem (0);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2910 min_val = elem (0);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2911 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2912 else
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2913 return false;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2914
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2915 for (octave_idx_type i = 0; i < nel; i++)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2916 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2917 float val = elem (i);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2918
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2919 if (val > max_val)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2920 max_val = val;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2921
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2922 if (val < min_val)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2923 min_val = val;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2924
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2925 if (D_NINT (val) != val)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2926 return false;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2927 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2928
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2929 return true;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2930 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2931
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2932 bool
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2933 FloatMatrix::too_large_for_float (void) const
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2934 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2935 octave_idx_type nel = nelem ();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2936
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2937 for (octave_idx_type i = 0; i < nel; i++)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2938 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2939 float val = elem (i);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2940
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2941 if (! (xisnan (val) \|\| xisinf (val))
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2942 && fabs (val) > FLT_MAX)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2943 return true;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2944 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2945
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2946 return false;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2947 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2948
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2949 // FIXME Do these really belong here? Maybe they should be
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2950 // in a base class?
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2951
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2952 boolMatrix
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2953 FloatMatrix::all (int dim) const
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2954 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2955 MX_ALL_OP (dim);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2956 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2957
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2958 boolMatrix
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2959 FloatMatrix::any (int dim) const
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2960 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2961 MX_ANY_OP (dim);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2962 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2963
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2964 FloatMatrix
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2965 FloatMatrix::cumprod (int dim) const
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2966 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2967 MX_CUMULATIVE_OP (FloatMatrix, float, *=);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2968 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2969
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2970 FloatMatrix
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2971 FloatMatrix::cumsum (int dim) const
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2972 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2973 MX_CUMULATIVE_OP (FloatMatrix, float, +=);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2974 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2975
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2976 FloatMatrix
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2977 FloatMatrix::prod (int dim) const
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2978 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2979 MX_REDUCTION_OP (FloatMatrix, *=, 1.0, 1.0);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2980 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2981
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2982 FloatMatrix
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2983 FloatMatrix::sum (int dim) const
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2984 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2985 MX_REDUCTION_OP (FloatMatrix, +=, 0.0, 0.0);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2986 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2987
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2988 FloatMatrix
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2989 FloatMatrix::sumsq (int dim) const
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2990 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2991 #define ROW_EXPR \
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2992 float d = elem (i, j); \
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2993 retval.elem (i, 0) += d * d
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2994
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2995 #define COL_EXPR \
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2996 float d = elem (i, j); \
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2997 retval.elem (0, j) += d * d
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2998
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	2999 MX_BASE_REDUCTION_OP (FloatMatrix, ROW_EXPR, COL_EXPR, 0.0, 0.0);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3000
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3001 #undef ROW_EXPR
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3002 #undef COL_EXPR
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3003 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3004
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3005 FloatMatrix
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3006 FloatMatrix::abs (void) const
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3007 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3008 octave_idx_type nr = rows ();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3009 octave_idx_type nc = cols ();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3010
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3011 FloatMatrix retval (nr, nc);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3012
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3013 for (octave_idx_type j = 0; j < nc; j++)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3014 for (octave_idx_type i = 0; i < nr; i++)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3015 retval (i, j) = fabs (elem (i, j));
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3016
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3017 return retval;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3018 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3019
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3020 FloatMatrix
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3021 FloatMatrix::diag (octave_idx_type k) const
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3022 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3023 return MArray2<float>::diag (k);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3024 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3025
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3026 FloatColumnVector
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3027 FloatMatrix::row_min (void) const
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3028 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3029 Array<octave_idx_type> dummy_idx;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3030 return row_min (dummy_idx);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3031 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3032
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3033 FloatColumnVector
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3034 FloatMatrix::row_min (Array<octave_idx_type>& idx_arg) const
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3035 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3036 FloatColumnVector result;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3037
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3038 octave_idx_type nr = rows ();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3039 octave_idx_type nc = cols ();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3040
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3041 if (nr > 0 && nc > 0)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3042 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3043 result.resize (nr);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3044 idx_arg.resize (nr);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3045
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3046 for (octave_idx_type i = 0; i < nr; i++)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3047 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3048 octave_idx_type idx_j;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3049
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3050 float tmp_min = octave_Float_NaN;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3051
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3052 for (idx_j = 0; idx_j < nc; idx_j++)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3053 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3054 tmp_min = elem (i, idx_j);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3055
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3056 if (! xisnan (tmp_min))
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3057 break;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3058 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3059
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3060 for (octave_idx_type j = idx_j+1; j < nc; j++)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3061 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3062 float tmp = elem (i, j);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3063
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3064 if (xisnan (tmp))
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3065 continue;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3066 else if (tmp < tmp_min)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3067 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3068 idx_j = j;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3069 tmp_min = tmp;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3070 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3071 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3072
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3073 result.elem (i) = tmp_min;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3074 idx_arg.elem (i) = xisnan (tmp_min) ? 0 : idx_j;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3075 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3076 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3077
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3078 return result;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3079 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3080
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3081 FloatColumnVector
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3082 FloatMatrix::row_max (void) const
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3083 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3084 Array<octave_idx_type> dummy_idx;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3085 return row_max (dummy_idx);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3086 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3087
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3088 FloatColumnVector
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3089 FloatMatrix::row_max (Array<octave_idx_type>& idx_arg) const
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3090 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3091 FloatColumnVector result;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3092
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3093 octave_idx_type nr = rows ();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3094 octave_idx_type nc = cols ();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3095
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3096 if (nr > 0 && nc > 0)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3097 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3098 result.resize (nr);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3099 idx_arg.resize (nr);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3100
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3101 for (octave_idx_type i = 0; i < nr; i++)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3102 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3103 octave_idx_type idx_j;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3104
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3105 float tmp_max = octave_Float_NaN;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3106
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3107 for (idx_j = 0; idx_j < nc; idx_j++)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3108 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3109 tmp_max = elem (i, idx_j);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3110
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3111 if (! xisnan (tmp_max))
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3112 break;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3113 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3114
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3115 for (octave_idx_type j = idx_j+1; j < nc; j++)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3116 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3117 float tmp = elem (i, j);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3118
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3119 if (xisnan (tmp))
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3120 continue;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3121 else if (tmp > tmp_max)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3122 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3123 idx_j = j;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3124 tmp_max = tmp;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3125 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3126 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3127
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3128 result.elem (i) = tmp_max;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3129 idx_arg.elem (i) = xisnan (tmp_max) ? 0 : idx_j;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3130 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3131 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3132
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3133 return result;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3134 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3135
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3136 FloatRowVector
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3137 FloatMatrix::column_min (void) const
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3138 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3139 Array<octave_idx_type> dummy_idx;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3140 return column_min (dummy_idx);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3141 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3142
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3143 FloatRowVector
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3144 FloatMatrix::column_min (Array<octave_idx_type>& idx_arg) const
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3145 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3146 FloatRowVector result;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3147
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3148 octave_idx_type nr = rows ();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3149 octave_idx_type nc = cols ();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3150
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3151 if (nr > 0 && nc > 0)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3152 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3153 result.resize (nc);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3154 idx_arg.resize (nc);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3155
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3156 for (octave_idx_type j = 0; j < nc; j++)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3157 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3158 octave_idx_type idx_i;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3159
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3160 float tmp_min = octave_Float_NaN;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3161
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3162 for (idx_i = 0; idx_i < nr; idx_i++)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3163 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3164 tmp_min = elem (idx_i, j);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3165
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3166 if (! xisnan (tmp_min))
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3167 break;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3168 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3169
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3170 for (octave_idx_type i = idx_i+1; i < nr; i++)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3171 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3172 float tmp = elem (i, j);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3173
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3174 if (xisnan (tmp))
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3175 continue;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3176 else if (tmp < tmp_min)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3177 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3178 idx_i = i;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3179 tmp_min = tmp;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3180 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3181 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3182
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3183 result.elem (j) = tmp_min;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3184 idx_arg.elem (j) = xisnan (tmp_min) ? 0 : idx_i;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3185 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3186 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3187
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3188 return result;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3189 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3190
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3191 FloatRowVector
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3192 FloatMatrix::column_max (void) const
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3193 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3194 Array<octave_idx_type> dummy_idx;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3195 return column_max (dummy_idx);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3196 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3197
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3198 FloatRowVector
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3199 FloatMatrix::column_max (Array<octave_idx_type>& idx_arg) const
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3200 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3201 FloatRowVector result;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3202
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3203 octave_idx_type nr = rows ();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3204 octave_idx_type nc = cols ();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3205
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3206 if (nr > 0 && nc > 0)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3207 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3208 result.resize (nc);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3209 idx_arg.resize (nc);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3210
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3211 for (octave_idx_type j = 0; j < nc; j++)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3212 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3213 octave_idx_type idx_i;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3214
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3215 float tmp_max = octave_Float_NaN;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3216
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3217 for (idx_i = 0; idx_i < nr; idx_i++)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3218 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3219 tmp_max = elem (idx_i, j);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3220
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3221 if (! xisnan (tmp_max))
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3222 break;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3223 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3224
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3225 for (octave_idx_type i = idx_i+1; i < nr; i++)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3226 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3227 float tmp = elem (i, j);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3228
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3229 if (xisnan (tmp))
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3230 continue;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3231 else if (tmp > tmp_max)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3232 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3233 idx_i = i;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3234 tmp_max = tmp;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3235 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3236 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3237
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3238 result.elem (j) = tmp_max;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3239 idx_arg.elem (j) = xisnan (tmp_max) ? 0 : idx_i;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3240 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3241 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3242
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3243 return result;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3244 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3245
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3246 std::ostream&
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3247 operator << (std::ostream& os, const FloatMatrix& a)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3248 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3249 for (octave_idx_type i = 0; i < a.rows (); i++)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3250 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3251 for (octave_idx_type j = 0; j < a.cols (); j++)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3252 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3253 os << " ";
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3254 octave_write_float (os, a.elem (i, j));
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3255 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3256 os << "\n";
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3257 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3258 return os;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3259 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3260
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3261 std::istream&
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3262 operator >> (std::istream& is, FloatMatrix& a)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3263 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3264 octave_idx_type nr = a.rows ();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3265 octave_idx_type nc = a.cols ();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3266
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3267 if (nr < 1 \|\| nc < 1)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3268 is.clear (std::ios::badbit);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3269 else
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3270 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3271 float tmp;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3272 for (octave_idx_type i = 0; i < nr; i++)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3273 for (octave_idx_type j = 0; j < nc; j++)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3274 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3275 tmp = octave_read_float (is);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3276 if (is)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3277 a.elem (i, j) = tmp;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3278 else
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3279 goto done;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3280 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3281 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3282
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3283 done:
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3284
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3285 return is;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3286 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3287
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3288 FloatMatrix
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3289 Givens (float x, float y)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3290 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3291 float cc, s, temp_r;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3292
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3293 F77_FUNC (slartg, SLARTG) (x, y, cc, s, temp_r);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3294
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3295 FloatMatrix g (2, 2);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3296
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3297 g.elem (0, 0) = cc;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3298 g.elem (1, 1) = cc;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3299 g.elem (0, 1) = s;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3300 g.elem (1, 0) = -s;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3301
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3302 return g;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3303 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3304
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3305 FloatMatrix
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3306 Sylvester (const FloatMatrix& a, const FloatMatrix& b, const FloatMatrix& c)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3307 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3308 FloatMatrix retval;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3309
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3310 // FIXME -- need to check that a, b, and c are all the same
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3311 // size.
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3312
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3313 // Compute Schur decompositions.
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3314
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3315 FloatSCHUR as (a, "U");
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3316 FloatSCHUR bs (b, "U");
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3317
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3318 // Transform c to new coordinates.
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3319
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3320 FloatMatrix ua = as.unitary_matrix ();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3321 FloatMatrix sch_a = as.schur_matrix ();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3322
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3323 FloatMatrix ub = bs.unitary_matrix ();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3324 FloatMatrix sch_b = bs.schur_matrix ();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3325
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3326 FloatMatrix cx = ua.transpose () * c * ub;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3327
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3328 // Solve the sylvester equation, back-transform, and return the
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3329 // solution.
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3330
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3331 octave_idx_type a_nr = a.rows ();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3332 octave_idx_type b_nr = b.rows ();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3333
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3334 float scale;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3335 octave_idx_type info;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3336
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3337 float *pa = sch_a.fortran_vec ();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3338 float *pb = sch_b.fortran_vec ();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3339 float *px = cx.fortran_vec ();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3340
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3341 F77_XFCN (strsyl, STRSYL, (F77_CONST_CHAR_ARG2 ("N", 1),
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3342 F77_CONST_CHAR_ARG2 ("N", 1),
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3343 1, a_nr, b_nr, pa, a_nr, pb,
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3344 b_nr, px, a_nr, scale, info
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3345 F77_CHAR_ARG_LEN (1)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3346 F77_CHAR_ARG_LEN (1)));
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3347
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3348
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3349 // FIXME -- check info?
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3350
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3351 retval = -uacxub.transpose ();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3352
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3353 return retval;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3354 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3355
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3356 // matrix by matrix -> matrix operations
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3357
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3358 /* Simple Dot Product, Matrix-Vector and Matrix-Matrix Unit tests
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3359 %!assert([1 2 3] * [ 4 ; 5 ; 6], 32, 1e-14)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3360 %!assert([1 2 ; 3 4 ] * [5 ; 6], [17 ; 39 ], 1e-14)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3361 %!assert([1 2 ; 3 4 ] * [5 6 ; 7 8], [19 22; 43 50], 1e-14)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3362 */
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3363
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3364 /* Test some simple identities
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3365 %!shared M, cv, rv
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3366 %! M = randn(10,10);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3367 %! cv = randn(10,1);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3368 %! rv = randn(1,10);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3369 %!assert([Mcv,Mcv],M*[cv,cv],1e-14)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3370 %!assert([rvM;rvM],[rv;rv]*M,1e-14)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3371 %!assert(2rvcv,[rv,rv]*[cv;cv],1e-14)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3372 */
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3373
7804 a0c550b22e61 compound ops for float matrices Jaroslav Hajek <highegg@gmail.com> parents: 7797 diff changeset	3374 static const char *
a0c550b22e61 compound ops for float matrices Jaroslav Hajek <highegg@gmail.com> parents: 7797 diff changeset	3375 get_blas_trans_arg (bool trans)
a0c550b22e61 compound ops for float matrices Jaroslav Hajek <highegg@gmail.com> parents: 7797 diff changeset	3376 {
a0c550b22e61 compound ops for float matrices Jaroslav Hajek <highegg@gmail.com> parents: 7797 diff changeset	3377 static char blas_notrans = 'N', blas_trans = 'T';
a0c550b22e61 compound ops for float matrices Jaroslav Hajek <highegg@gmail.com> parents: 7797 diff changeset	3378 return (trans) ? &blas_trans : &blas_notrans;
a0c550b22e61 compound ops for float matrices Jaroslav Hajek <highegg@gmail.com> parents: 7797 diff changeset	3379 }
a0c550b22e61 compound ops for float matrices Jaroslav Hajek <highegg@gmail.com> parents: 7797 diff changeset	3380
a0c550b22e61 compound ops for float matrices Jaroslav Hajek <highegg@gmail.com> parents: 7797 diff changeset	3381 // the general GEMM operation
a0c550b22e61 compound ops for float matrices Jaroslav Hajek <highegg@gmail.com> parents: 7797 diff changeset	3382
a0c550b22e61 compound ops for float matrices Jaroslav Hajek <highegg@gmail.com> parents: 7797 diff changeset	3383 FloatMatrix
a0c550b22e61 compound ops for float matrices Jaroslav Hajek <highegg@gmail.com> parents: 7797 diff changeset	3384 xgemm (bool transa, const FloatMatrix& a, bool transb, const FloatMatrix& b)
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3385 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3386 FloatMatrix retval;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3387
7804 a0c550b22e61 compound ops for float matrices Jaroslav Hajek <highegg@gmail.com> parents: 7797 diff changeset	3388 octave_idx_type a_nr = transa ? a.cols () : a.rows ();
a0c550b22e61 compound ops for float matrices Jaroslav Hajek <highegg@gmail.com> parents: 7797 diff changeset	3389 octave_idx_type a_nc = transa ? a.rows () : a.cols ();
a0c550b22e61 compound ops for float matrices Jaroslav Hajek <highegg@gmail.com> parents: 7797 diff changeset	3390
a0c550b22e61 compound ops for float matrices Jaroslav Hajek <highegg@gmail.com> parents: 7797 diff changeset	3391 octave_idx_type b_nr = transb ? b.cols () : b.rows ();
a0c550b22e61 compound ops for float matrices Jaroslav Hajek <highegg@gmail.com> parents: 7797 diff changeset	3392 octave_idx_type b_nc = transb ? b.rows () : b.cols ();
a0c550b22e61 compound ops for float matrices Jaroslav Hajek <highegg@gmail.com> parents: 7797 diff changeset	3393
a0c550b22e61 compound ops for float matrices Jaroslav Hajek <highegg@gmail.com> parents: 7797 diff changeset	3394 if (a_nc != b_nr)
a0c550b22e61 compound ops for float matrices Jaroslav Hajek <highegg@gmail.com> parents: 7797 diff changeset	3395 gripe_nonconformant ("operator *", a_nr, a_nc, b_nr, b_nc);
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3396 else
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3397 {
7804 a0c550b22e61 compound ops for float matrices Jaroslav Hajek <highegg@gmail.com> parents: 7797 diff changeset	3398 if (a_nr == 0 \|\| a_nc == 0 \|\| b_nc == 0)
a0c550b22e61 compound ops for float matrices Jaroslav Hajek <highegg@gmail.com> parents: 7797 diff changeset	3399 retval.resize (a_nr, b_nc, 0.0);
a0c550b22e61 compound ops for float matrices Jaroslav Hajek <highegg@gmail.com> parents: 7797 diff changeset	3400 else if (a.data () == b.data () && a_nr == b_nc && transa != transb)
a0c550b22e61 compound ops for float matrices Jaroslav Hajek <highegg@gmail.com> parents: 7797 diff changeset	3401 {
a0c550b22e61 compound ops for float matrices Jaroslav Hajek <highegg@gmail.com> parents: 7797 diff changeset	3402 octave_idx_type lda = a.rows ();
a0c550b22e61 compound ops for float matrices Jaroslav Hajek <highegg@gmail.com> parents: 7797 diff changeset	3403
a0c550b22e61 compound ops for float matrices Jaroslav Hajek <highegg@gmail.com> parents: 7797 diff changeset	3404 retval.resize (a_nr, b_nc);
a0c550b22e61 compound ops for float matrices Jaroslav Hajek <highegg@gmail.com> parents: 7797 diff changeset	3405 float *c = retval.fortran_vec ();
a0c550b22e61 compound ops for float matrices Jaroslav Hajek <highegg@gmail.com> parents: 7797 diff changeset	3406
a0c550b22e61 compound ops for float matrices Jaroslav Hajek <highegg@gmail.com> parents: 7797 diff changeset	3407 const char *ctransa = get_blas_trans_arg (transa);
a0c550b22e61 compound ops for float matrices Jaroslav Hajek <highegg@gmail.com> parents: 7797 diff changeset	3408 F77_XFCN (ssyrk, SSYRK, (F77_CONST_CHAR_ARG2 ("U", 1),
a0c550b22e61 compound ops for float matrices Jaroslav Hajek <highegg@gmail.com> parents: 7797 diff changeset	3409 F77_CONST_CHAR_ARG2 (ctransa, 1),
a0c550b22e61 compound ops for float matrices Jaroslav Hajek <highegg@gmail.com> parents: 7797 diff changeset	3410 a_nr, a_nc, 1.0,
a0c550b22e61 compound ops for float matrices Jaroslav Hajek <highegg@gmail.com> parents: 7797 diff changeset	3411 a.data (), lda, 0.0, c, a_nr
a0c550b22e61 compound ops for float matrices Jaroslav Hajek <highegg@gmail.com> parents: 7797 diff changeset	3412 F77_CHAR_ARG_LEN (1)
a0c550b22e61 compound ops for float matrices Jaroslav Hajek <highegg@gmail.com> parents: 7797 diff changeset	3413 F77_CHAR_ARG_LEN (1)));
a0c550b22e61 compound ops for float matrices Jaroslav Hajek <highegg@gmail.com> parents: 7797 diff changeset	3414 for (int j = 0; j < a_nr; j++)
a0c550b22e61 compound ops for float matrices Jaroslav Hajek <highegg@gmail.com> parents: 7797 diff changeset	3415 for (int i = 0; i < j; i++)
a0c550b22e61 compound ops for float matrices Jaroslav Hajek <highegg@gmail.com> parents: 7797 diff changeset	3416 retval.xelem (j,i) = retval.xelem (i,j);
a0c550b22e61 compound ops for float matrices Jaroslav Hajek <highegg@gmail.com> parents: 7797 diff changeset	3417
a0c550b22e61 compound ops for float matrices Jaroslav Hajek <highegg@gmail.com> parents: 7797 diff changeset	3418 }
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3419 else
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3420 {
7804 a0c550b22e61 compound ops for float matrices Jaroslav Hajek <highegg@gmail.com> parents: 7797 diff changeset	3421 octave_idx_type lda = a.rows (), tda = a.cols ();
a0c550b22e61 compound ops for float matrices Jaroslav Hajek <highegg@gmail.com> parents: 7797 diff changeset	3422 octave_idx_type ldb = b.rows (), tdb = b.cols ();
a0c550b22e61 compound ops for float matrices Jaroslav Hajek <highegg@gmail.com> parents: 7797 diff changeset	3423
a0c550b22e61 compound ops for float matrices Jaroslav Hajek <highegg@gmail.com> parents: 7797 diff changeset	3424 retval.resize (a_nr, b_nc);
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3425 float *c = retval.fortran_vec ();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3426
7804 a0c550b22e61 compound ops for float matrices Jaroslav Hajek <highegg@gmail.com> parents: 7797 diff changeset	3427 if (b_nc == 1)
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3428 {
7804 a0c550b22e61 compound ops for float matrices Jaroslav Hajek <highegg@gmail.com> parents: 7797 diff changeset	3429 if (a_nr == 1)
a0c550b22e61 compound ops for float matrices Jaroslav Hajek <highegg@gmail.com> parents: 7797 diff changeset	3430 F77_FUNC (xsdot, XSDOT) (a_nc, a.data (), 1, b.data (), 1, *c);
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3431 else
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3432 {
7804 a0c550b22e61 compound ops for float matrices Jaroslav Hajek <highegg@gmail.com> parents: 7797 diff changeset	3433 const char *ctransa = get_blas_trans_arg (transa);
a0c550b22e61 compound ops for float matrices Jaroslav Hajek <highegg@gmail.com> parents: 7797 diff changeset	3434 F77_XFCN (sgemv, SGEMV, (F77_CONST_CHAR_ARG2 (ctransa, 1),
a0c550b22e61 compound ops for float matrices Jaroslav Hajek <highegg@gmail.com> parents: 7797 diff changeset	3435 lda, tda, 1.0, a.data (), lda,
a0c550b22e61 compound ops for float matrices Jaroslav Hajek <highegg@gmail.com> parents: 7797 diff changeset	3436 b.data (), 1, 0.0, c, 1
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3437 F77_CHAR_ARG_LEN (1)));
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3438 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3439 }
7804 a0c550b22e61 compound ops for float matrices Jaroslav Hajek <highegg@gmail.com> parents: 7797 diff changeset	3440 else if (a_nr == 1)
a0c550b22e61 compound ops for float matrices Jaroslav Hajek <highegg@gmail.com> parents: 7797 diff changeset	3441 {
a0c550b22e61 compound ops for float matrices Jaroslav Hajek <highegg@gmail.com> parents: 7797 diff changeset	3442 const char *crevtransb = get_blas_trans_arg (! transb);
a0c550b22e61 compound ops for float matrices Jaroslav Hajek <highegg@gmail.com> parents: 7797 diff changeset	3443 F77_XFCN (sgemv, SGEMV, (F77_CONST_CHAR_ARG2 (crevtransb, 1),
a0c550b22e61 compound ops for float matrices Jaroslav Hajek <highegg@gmail.com> parents: 7797 diff changeset	3444 ldb, tdb, 1.0, b.data (), ldb,
a0c550b22e61 compound ops for float matrices Jaroslav Hajek <highegg@gmail.com> parents: 7797 diff changeset	3445 a.data (), 1, 0.0, c, 1
a0c550b22e61 compound ops for float matrices Jaroslav Hajek <highegg@gmail.com> parents: 7797 diff changeset	3446 F77_CHAR_ARG_LEN (1)));
a0c550b22e61 compound ops for float matrices Jaroslav Hajek <highegg@gmail.com> parents: 7797 diff changeset	3447 }
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3448 else
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3449 {
7804 a0c550b22e61 compound ops for float matrices Jaroslav Hajek <highegg@gmail.com> parents: 7797 diff changeset	3450 const char *ctransa = get_blas_trans_arg (transa);
a0c550b22e61 compound ops for float matrices Jaroslav Hajek <highegg@gmail.com> parents: 7797 diff changeset	3451 const char *ctransb = get_blas_trans_arg (transb);
a0c550b22e61 compound ops for float matrices Jaroslav Hajek <highegg@gmail.com> parents: 7797 diff changeset	3452 F77_XFCN (sgemm, SGEMM, (F77_CONST_CHAR_ARG2 (ctransa, 1),
a0c550b22e61 compound ops for float matrices Jaroslav Hajek <highegg@gmail.com> parents: 7797 diff changeset	3453 F77_CONST_CHAR_ARG2 (ctransb, 1),
a0c550b22e61 compound ops for float matrices Jaroslav Hajek <highegg@gmail.com> parents: 7797 diff changeset	3454 a_nr, b_nc, a_nc, 1.0, a.data (),
a0c550b22e61 compound ops for float matrices Jaroslav Hajek <highegg@gmail.com> parents: 7797 diff changeset	3455 lda, b.data (), ldb, 0.0, c, a_nr
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3456 F77_CHAR_ARG_LEN (1)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3457 F77_CHAR_ARG_LEN (1)));
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3458 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3459 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3460 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3461
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3462 return retval;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3463 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3464
7804 a0c550b22e61 compound ops for float matrices Jaroslav Hajek <highegg@gmail.com> parents: 7797 diff changeset	3465 FloatMatrix
a0c550b22e61 compound ops for float matrices Jaroslav Hajek <highegg@gmail.com> parents: 7797 diff changeset	3466 operator * (const FloatMatrix& a, const FloatMatrix& b)
a0c550b22e61 compound ops for float matrices Jaroslav Hajek <highegg@gmail.com> parents: 7797 diff changeset	3467 {
a0c550b22e61 compound ops for float matrices Jaroslav Hajek <highegg@gmail.com> parents: 7797 diff changeset	3468 return xgemm (false, a, false, b);
a0c550b22e61 compound ops for float matrices Jaroslav Hajek <highegg@gmail.com> parents: 7797 diff changeset	3469 }
a0c550b22e61 compound ops for float matrices Jaroslav Hajek <highegg@gmail.com> parents: 7797 diff changeset	3470
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3471 // FIXME -- it would be nice to share code among the min/max
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3472 // functions below.
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3473
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3474 #define EMPTY_RETURN_CHECK(T) \
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3475 if (nr == 0 \|\| nc == 0) \
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3476 return T (nr, nc);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3477
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3478 FloatMatrix
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3479 min (float d, const FloatMatrix& m)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3480 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3481 octave_idx_type nr = m.rows ();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3482 octave_idx_type nc = m.columns ();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3483
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3484 EMPTY_RETURN_CHECK (FloatMatrix);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3485
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3486 FloatMatrix result (nr, nc);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3487
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3488 for (octave_idx_type j = 0; j < nc; j++)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3489 for (octave_idx_type i = 0; i < nr; i++)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3490 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3491 OCTAVE_QUIT;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3492 result (i, j) = xmin (d, m (i, j));
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3493 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3494
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3495 return result;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3496 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3497
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3498 FloatMatrix
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3499 min (const FloatMatrix& m, float d)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3500 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3501 octave_idx_type nr = m.rows ();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3502 octave_idx_type nc = m.columns ();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3503
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3504 EMPTY_RETURN_CHECK (FloatMatrix);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3505
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3506 FloatMatrix result (nr, nc);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3507
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3508 for (octave_idx_type j = 0; j < nc; j++)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3509 for (octave_idx_type i = 0; i < nr; i++)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3510 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3511 OCTAVE_QUIT;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3512 result (i, j) = xmin (m (i, j), d);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3513 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3514
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3515 return result;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3516 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3517
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3518 FloatMatrix
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3519 min (const FloatMatrix& a, const FloatMatrix& b)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3520 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3521 octave_idx_type nr = a.rows ();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3522 octave_idx_type nc = a.columns ();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3523
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3524 if (nr != b.rows () \|\| nc != b.columns ())
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3525 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3526 (*current_liboctave_error_handler)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3527 ("two-arg min expecting args of same size");
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3528 return FloatMatrix ();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3529 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3530
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3531 EMPTY_RETURN_CHECK (FloatMatrix);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3532
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3533 FloatMatrix result (nr, nc);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3534
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3535 for (octave_idx_type j = 0; j < nc; j++)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3536 for (octave_idx_type i = 0; i < nr; i++)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3537 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3538 OCTAVE_QUIT;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3539 result (i, j) = xmin (a (i, j), b (i, j));
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3540 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3541
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3542 return result;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3543 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3544
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3545 FloatMatrix
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3546 max (float d, const FloatMatrix& m)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3547 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3548 octave_idx_type nr = m.rows ();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3549 octave_idx_type nc = m.columns ();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3550
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3551 EMPTY_RETURN_CHECK (FloatMatrix);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3552
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3553 FloatMatrix result (nr, nc);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3554
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3555 for (octave_idx_type j = 0; j < nc; j++)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3556 for (octave_idx_type i = 0; i < nr; i++)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3557 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3558 OCTAVE_QUIT;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3559 result (i, j) = xmax (d, m (i, j));
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3560 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3561
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3562 return result;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3563 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3564
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3565 FloatMatrix
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3566 max (const FloatMatrix& m, float d)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3567 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3568 octave_idx_type nr = m.rows ();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3569 octave_idx_type nc = m.columns ();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3570
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3571 EMPTY_RETURN_CHECK (FloatMatrix);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3572
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3573 FloatMatrix result (nr, nc);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3574
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3575 for (octave_idx_type j = 0; j < nc; j++)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3576 for (octave_idx_type i = 0; i < nr; i++)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3577 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3578 OCTAVE_QUIT;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3579 result (i, j) = xmax (m (i, j), d);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3580 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3581
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3582 return result;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3583 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3584
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3585 FloatMatrix
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3586 max (const FloatMatrix& a, const FloatMatrix& b)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3587 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3588 octave_idx_type nr = a.rows ();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3589 octave_idx_type nc = a.columns ();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3590
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3591 if (nr != b.rows () \|\| nc != b.columns ())
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3592 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3593 (*current_liboctave_error_handler)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3594 ("two-arg max expecting args of same size");
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3595 return FloatMatrix ();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3596 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3597
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3598 EMPTY_RETURN_CHECK (FloatMatrix);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3599
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3600 FloatMatrix result (nr, nc);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3601
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3602 for (octave_idx_type j = 0; j < nc; j++)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3603 for (octave_idx_type i = 0; i < nr; i++)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3604 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3605 OCTAVE_QUIT;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3606 result (i, j) = xmax (a (i, j), b (i, j));
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3607 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3608
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3609 return result;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3610 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3611
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3612 MS_CMP_OPS(FloatMatrix, , float, )
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3613 MS_BOOL_OPS(FloatMatrix, float, 0.0)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3614
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3615 SM_CMP_OPS(float, , FloatMatrix, )
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3616 SM_BOOL_OPS(float, FloatMatrix, 0.0)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3617
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3618 MM_CMP_OPS(FloatMatrix, , FloatMatrix, )
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3619 MM_BOOL_OPS(FloatMatrix, FloatMatrix, 0.0)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3620
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3621 /*
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3622 ;;; Local Variables: ***
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3623 ;;; mode: C++ ***
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3624 ;;; End: ***
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: diff changeset	3625 */

Mercurial > hg > octave-lyh

annotate liboctave/fMatrix.cc @ 7875:bff8dbc1be11