octave: libinterp/corefcn/sylvester.cc annotate

annotate libinterp/corefcn/sylvester.cc @ 20801:a542a9bf177e

eliminate return statements after calls to print_usage * graphics.cc, hess.cc, input.cc, kron.cc, load-save.cc, lsode.cc, luinc.cc, matrix_type.cc, md5sum.cc, nproc.cc, pager.cc, pr-output.cc, psi.cc, quadcc.cc, rand.cc, regexp.cc, sighandlers.cc, sqrtm.cc, strfind.cc, sub2ind.cc, sylvester.cc: Eliminate return statements after calls to print_usage.

author	John W. Eaton <jwe@octave.org>
date	Thu, 03 Dec 2015 19:22:54 -0500
parents	4bed806ee3d4
children	f428cbe7576f

rev	line source
2928 295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe parents: diff changeset	1 /*
295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe parents: diff changeset	2
19697 4197fc428c7d maint: Update copyright notices for 2015. John W. Eaton <jwe@octave.org> parents: 19065 diff changeset	3 Copyright (C) 1996-2015 John W. Eaton
2928 295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe parents: diff changeset	4
295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe parents: diff changeset	5 This file is part of Octave.
295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe parents: diff changeset	6
295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe parents: diff changeset	7 Octave is free software; you can redistribute it and/or modify it
295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe parents: diff changeset	8 under the terms of the GNU General Public License as published by the
7016 93c65f2a5668 [project @ 2007-10-12 06:40:56 by jwe] jwe parents: 5823 diff changeset	9 Free Software Foundation; either version 3 of the License, or (at your
93c65f2a5668 [project @ 2007-10-12 06:40:56 by jwe] jwe parents: 5823 diff changeset	10 option) any later version.
2928 295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe parents: diff changeset	11
295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe parents: diff changeset	12 Octave is distributed in the hope that it will be useful, but WITHOUT
295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe parents: diff changeset	13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe parents: diff changeset	14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe parents: diff changeset	15 for more details.
295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe parents: diff changeset	16
295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe parents: diff changeset	17 You should have received a copy of the GNU General Public License
7016 93c65f2a5668 [project @ 2007-10-12 06:40:56 by jwe] jwe parents: 5823 diff changeset	18 along with Octave; see the file COPYING. If not, see
93c65f2a5668 [project @ 2007-10-12 06:40:56 by jwe] jwe parents: 5823 diff changeset	19 <http://www.gnu.org/licenses/>.
2928 295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe parents: diff changeset	20
295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe parents: diff changeset	21 */
295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe parents: diff changeset	22
3911 8389e78e67d4 [project @ 2002-04-28 02:15:38 by jwe] jwe parents: 3548 diff changeset	23 // Author: A. S. Hodel <scotte@eng.auburn.edu>
2928 295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe parents: diff changeset	24
295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe parents: diff changeset	25 #ifdef HAVE_CONFIG_H
295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe parents: diff changeset	26 #include <config.h>
295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe parents: diff changeset	27 #endif
295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe parents: diff changeset	28
15039 e753177cde93 maint: Move non-dynamically linked functions from DLD-FUNCTIONS/ to corefcn/ directory Rik <rik@octave.org> parents: 14501 diff changeset	29 #include "defun.h"
2928 295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe parents: diff changeset	30 #include "error.h"
295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe parents: diff changeset	31 #include "gripes.h"
295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe parents: diff changeset	32 #include "oct-obj.h"
295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe parents: diff changeset	33 #include "utils.h"
295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe parents: diff changeset	34
19065 d20c81d3cd21 Deprecate syl, add new function sylvester. Rik <rik@octave.org> parents: 17787 diff changeset	35 DEFUN (sylvester, args, nargout,
17787 175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	36 "-- texinfo --\n\
19065 d20c81d3cd21 Deprecate syl, add new function sylvester. Rik <rik@octave.org> parents: 17787 diff changeset	37 @deftypefn {Built-in Function} {@var{X} =} syl (@var{A}, @var{B}, @var{C})\n\
3372 f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe] jwe parents: 3014 diff changeset	38 Solve the Sylvester equation\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe] jwe parents: 3014 diff changeset	39 @tex\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe] jwe parents: 3014 diff changeset	40 $$\n\
19065 d20c81d3cd21 Deprecate syl, add new function sylvester. Rik <rik@octave.org> parents: 17787 diff changeset	41 A X + X B = C\n\
3372 f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe] jwe parents: 3014 diff changeset	42 $$\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe] jwe parents: 3014 diff changeset	43 @end tex\n\
8517 81d6ab3ac93c Allow documentation tobe built for other formats than tex and info sh@sh-laptop parents: 7814 diff changeset	44 @ifnottex\n\
3372 f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe] jwe parents: 3014 diff changeset	45 \n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe] jwe parents: 3014 diff changeset	46 @example\n\
19065 d20c81d3cd21 Deprecate syl, add new function sylvester. Rik <rik@octave.org> parents: 17787 diff changeset	47 A X + X B = C\n\
3372 f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe] jwe parents: 3014 diff changeset	48 @end example\n\
10840 89f4d7e294cc Grammarcheck .cc files Rik <octave@nomad.inbox5.com> parents: 10155 diff changeset	49 \n\
8517 81d6ab3ac93c Allow documentation tobe built for other formats than tex and info sh@sh-laptop parents: 7814 diff changeset	50 @end ifnottex\n\
19065 d20c81d3cd21 Deprecate syl, add new function sylvester. Rik <rik@octave.org> parents: 17787 diff changeset	51 using standard @sc{lapack} subroutines.\n\
d20c81d3cd21 Deprecate syl, add new function sylvester. Rik <rik@octave.org> parents: 17787 diff changeset	52 \n\
d20c81d3cd21 Deprecate syl, add new function sylvester. Rik <rik@octave.org> parents: 17787 diff changeset	53 For example:\n\
3372 f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe] jwe parents: 3014 diff changeset	54 \n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe] jwe parents: 3014 diff changeset	55 @example\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe] jwe parents: 3014 diff changeset	56 @group\n\
19065 d20c81d3cd21 Deprecate syl, add new function sylvester. Rik <rik@octave.org> parents: 17787 diff changeset	57 sylvester ([1, 2; 3, 4], [5, 6; 7, 8], [9, 10; 11, 12])\n\
d20c81d3cd21 Deprecate syl, add new function sylvester. Rik <rik@octave.org> parents: 17787 diff changeset	58 @result{} [ 0.50000, 0.66667; 0.66667, 0.50000 ]\n\
3372 f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe] jwe parents: 3014 diff changeset	59 @end group\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe] jwe parents: 3014 diff changeset	60 @end example\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe] jwe parents: 3014 diff changeset	61 @end deftypefn")
2928 295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe parents: diff changeset	62 {
4233 ccfdb55c8156 [project @ 2002-12-20 22:43:54 by jwe] jwe parents: 3911 diff changeset	63 octave_value retval;
2928 295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe parents: diff changeset	64
295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe parents: diff changeset	65 int nargin = args.length ();
295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe parents: diff changeset	66
295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe parents: diff changeset	67 if (nargin != 3 \|\| nargout > 1)
20801 a542a9bf177e eliminate return statements after calls to print_usage John W. Eaton <jwe@octave.org> parents: 20556 diff changeset	68 print_usage ();
2928 295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe parents: diff changeset	69
295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe parents: diff changeset	70 octave_value arg_a = args(0);
295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe parents: diff changeset	71 octave_value arg_b = args(1);
295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe parents: diff changeset	72 octave_value arg_c = args(2);
295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe parents: diff changeset	73
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 4233 diff changeset	74 octave_idx_type a_nr = arg_a.rows ();
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 4233 diff changeset	75 octave_idx_type a_nc = arg_a.columns ();
2928 295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe parents: diff changeset	76
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 4233 diff changeset	77 octave_idx_type b_nr = arg_b.rows ();
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 4233 diff changeset	78 octave_idx_type b_nc = arg_b.columns ();
2928 295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe parents: diff changeset	79
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 4233 diff changeset	80 octave_idx_type c_nr = arg_c.rows ();
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 4233 diff changeset	81 octave_idx_type c_nc = arg_c.columns ();
2928 295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe parents: diff changeset	82
19065 d20c81d3cd21 Deprecate syl, add new function sylvester. Rik <rik@octave.org> parents: 17787 diff changeset	83 int arg_a_is_empty = empty_arg ("sylvester", a_nr, a_nc);
d20c81d3cd21 Deprecate syl, add new function sylvester. Rik <rik@octave.org> parents: 17787 diff changeset	84 int arg_b_is_empty = empty_arg ("sylvester", b_nr, b_nc);
d20c81d3cd21 Deprecate syl, add new function sylvester. Rik <rik@octave.org> parents: 17787 diff changeset	85 int arg_c_is_empty = empty_arg ("sylvester", c_nr, c_nc);
2928 295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe parents: diff changeset	86
19065 d20c81d3cd21 Deprecate syl, add new function sylvester. Rik <rik@octave.org> parents: 17787 diff changeset	87 bool isfloat = arg_a.is_single_type ()
d20c81d3cd21 Deprecate syl, add new function sylvester. Rik <rik@octave.org> parents: 17787 diff changeset	88 \|\| arg_b.is_single_type ()
17787 175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	89 \|\| arg_c.is_single_type ();
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7017 diff changeset	90
2928 295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe parents: diff changeset	91 if (arg_a_is_empty > 0 && arg_b_is_empty > 0 && arg_c_is_empty > 0)
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7017 diff changeset	92 if (isfloat)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7017 diff changeset	93 return octave_value (FloatMatrix ());
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7017 diff changeset	94 else
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7017 diff changeset	95 return octave_value (Matrix ());
2928 295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe parents: diff changeset	96 else if (arg_a_is_empty \|\| arg_b_is_empty \|\| arg_c_is_empty)
295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe parents: diff changeset	97 return retval;
295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe parents: diff changeset	98
295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe parents: diff changeset	99 // Arguments are not empty, so check for correct dimensions.
295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe parents: diff changeset	100
19065 d20c81d3cd21 Deprecate syl, add new function sylvester. Rik <rik@octave.org> parents: 17787 diff changeset	101 if (a_nr != a_nc)
2928 295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe parents: diff changeset	102 {
19065 d20c81d3cd21 Deprecate syl, add new function sylvester. Rik <rik@octave.org> parents: 17787 diff changeset	103 gripe_square_matrix_required ("sylvester: input A");
d20c81d3cd21 Deprecate syl, add new function sylvester. Rik <rik@octave.org> parents: 17787 diff changeset	104 return retval;
d20c81d3cd21 Deprecate syl, add new function sylvester. Rik <rik@octave.org> parents: 17787 diff changeset	105 }
d20c81d3cd21 Deprecate syl, add new function sylvester. Rik <rik@octave.org> parents: 17787 diff changeset	106 else if (b_nr != b_nc)
d20c81d3cd21 Deprecate syl, add new function sylvester. Rik <rik@octave.org> parents: 17787 diff changeset	107 {
d20c81d3cd21 Deprecate syl, add new function sylvester. Rik <rik@octave.org> parents: 17787 diff changeset	108 gripe_square_matrix_required ("sylvester: input B");
2928 295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe parents: diff changeset	109 return retval;
295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe parents: diff changeset	110 }
295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe parents: diff changeset	111 else if (a_nr != c_nr \|\| b_nr != c_nc)
295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe parents: diff changeset	112 {
295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe parents: diff changeset	113 gripe_nonconformant ();
295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe parents: diff changeset	114 return retval;
295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe parents: diff changeset	115 }
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11553 diff changeset	116
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7017 diff changeset	117 if (isfloat)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7017 diff changeset	118 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7017 diff changeset	119 if (arg_a.is_complex_type ()
10154 40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9758 diff changeset	120 \|\| arg_b.is_complex_type ()
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9758 diff changeset	121 \|\| arg_c.is_complex_type ())
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9758 diff changeset	122 {
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9758 diff changeset	123 // Do everything in complex arithmetic;
2928 295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe parents: diff changeset	124
10154 40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9758 diff changeset	125 FloatComplexMatrix ca = arg_a.float_complex_matrix_value ();
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9758 diff changeset	126 FloatComplexMatrix cb = arg_b.float_complex_matrix_value ();
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9758 diff changeset	127 FloatComplexMatrix cc = arg_c.float_complex_matrix_value ();
2928 295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe parents: diff changeset	128
10154 40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9758 diff changeset	129 retval = Sylvester (ca, cb, cc);
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9758 diff changeset	130 }
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7017 diff changeset	131 else
10154 40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9758 diff changeset	132 {
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9758 diff changeset	133 // Do everything in real arithmetic.
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7017 diff changeset	134
10154 40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9758 diff changeset	135 FloatMatrix ca = arg_a.float_matrix_value ();
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9758 diff changeset	136 FloatMatrix cb = arg_b.float_matrix_value ();
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9758 diff changeset	137 FloatMatrix cc = arg_c.float_matrix_value ();
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7017 diff changeset	138
10154 40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9758 diff changeset	139 retval = Sylvester (ca, cb, cc);
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9758 diff changeset	140 }
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7017 diff changeset	141 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7017 diff changeset	142 else
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7017 diff changeset	143 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7017 diff changeset	144 if (arg_a.is_complex_type ()
10154 40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9758 diff changeset	145 \|\| arg_b.is_complex_type ()
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9758 diff changeset	146 \|\| arg_c.is_complex_type ())
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9758 diff changeset	147 {
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9758 diff changeset	148 // Do everything in complex arithmetic;
2928 295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe parents: diff changeset	149
10154 40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9758 diff changeset	150 ComplexMatrix ca = arg_a.complex_matrix_value ();
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9758 diff changeset	151 ComplexMatrix cb = arg_b.complex_matrix_value ();
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9758 diff changeset	152 ComplexMatrix cc = arg_c.complex_matrix_value ();
2928 295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe parents: diff changeset	153
10154 40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9758 diff changeset	154 retval = Sylvester (ca, cb, cc);
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9758 diff changeset	155 }
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7017 diff changeset	156 else
10154 40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9758 diff changeset	157 {
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9758 diff changeset	158 // Do everything in real arithmetic.
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7017 diff changeset	159
10154 40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9758 diff changeset	160 Matrix ca = arg_a.matrix_value ();
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9758 diff changeset	161 Matrix cb = arg_b.matrix_value ();
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9758 diff changeset	162 Matrix cc = arg_c.matrix_value ();
2928 295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe parents: diff changeset	163
10154 40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9758 diff changeset	164 retval = Sylvester (ca, cb, cc);
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9758 diff changeset	165 }
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7017 diff changeset	166 }
2928 295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe parents: diff changeset	167
295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe parents: diff changeset	168 return retval;
295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe parents: diff changeset	169 }
295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe parents: diff changeset	170
295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe parents: diff changeset	171 /*
19065 d20c81d3cd21 Deprecate syl, add new function sylvester. Rik <rik@octave.org> parents: 17787 diff changeset	172 %!assert (sylvester ([1, 2; 3, 4], [5, 6; 7, 8], [9, 10; 11, 12]), [1/2, 2/3; 2/3, 1/2], sqrt (eps))
d20c81d3cd21 Deprecate syl, add new function sylvester. Rik <rik@octave.org> parents: 17787 diff changeset	173 %!assert (sylvester (single ([1, 2; 3, 4]), single ([5, 6; 7, 8]), single ([9, 10; 11, 12])), single ([1/2, 2/3; 2/3, 1/2]), sqrt (eps ("single")))
7814 87865ed7405f Second set of single precision test code and fix of resulting bugs David Bateman <dbateman@free.fr> parents: 7789 diff changeset	174
19065 d20c81d3cd21 Deprecate syl, add new function sylvester. Rik <rik@octave.org> parents: 17787 diff changeset	175 %% Test input validation
d20c81d3cd21 Deprecate syl, add new function sylvester. Rik <rik@octave.org> parents: 17787 diff changeset	176 %!error sylvester ()
d20c81d3cd21 Deprecate syl, add new function sylvester. Rik <rik@octave.org> parents: 17787 diff changeset	177 %!error sylvester (1)
d20c81d3cd21 Deprecate syl, add new function sylvester. Rik <rik@octave.org> parents: 17787 diff changeset	178 %!error sylvester (1,2)
d20c81d3cd21 Deprecate syl, add new function sylvester. Rik <rik@octave.org> parents: 17787 diff changeset	179 %!error sylvester (1, 2, 3, 4)
d20c81d3cd21 Deprecate syl, add new function sylvester. Rik <rik@octave.org> parents: 17787 diff changeset	180 %!error <input A: .* must be a square matrix> sylvester (ones (2,3), ones (2,2), ones (2,2))
d20c81d3cd21 Deprecate syl, add new function sylvester. Rik <rik@octave.org> parents: 17787 diff changeset	181 %!error <input B: .* must be a square matrix> sylvester (ones (2,2), ones (2,3), ones (2,2))
d20c81d3cd21 Deprecate syl, add new function sylvester. Rik <rik@octave.org> parents: 17787 diff changeset	182 %!error <nonconformant matrices> sylvester (ones (2,2), ones (2,2), ones (3,3))
2928 295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe parents: diff changeset	183 */

Mercurial > octave

annotate libinterp/corefcn/sylvester.cc @ 20801:a542a9bf177e