octave: libinterp/corefcn/dassl.cc annotate

annotate libinterp/corefcn/dassl.cc @ 20892:c07bee629973

2015 Code Sprint: use ovl ().

author	Rik <rik@octave.org>
date	Mon, 14 Dec 2015 11:28:48 -0800
parents	1142cf6abc0d
children	03e4ddd49396

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: 17787 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
295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe parents: diff changeset	23 #ifdef HAVE_CONFIG_H
295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe parents: diff changeset	24 #include <config.h>
295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe parents: diff changeset	25 #endif
295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe parents: diff changeset	26
295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe parents: diff changeset	27 #include <string>
295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe parents: diff changeset	28
3567 dd8998699aa8 [project @ 2000-02-03 09:54:28 by jwe] jwe parents: 3544 diff changeset	29 #include <iomanip>
3523 b80bbb43a1a9 [project @ 2000-02-02 10:25:52 by jwe] jwe parents: 3419 diff changeset	30 #include <iostream>
2928 295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe parents: diff changeset	31
295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe parents: diff changeset	32 #include "DASSL.h"
295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe parents: diff changeset	33
15039 e753177cde93 maint: Move non-dynamically linked functions from DLD-FUNCTIONS/ to corefcn/ directory Rik <rik@octave.org> parents: 14854 diff changeset	34 #include "defun.h"
2928 295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe parents: diff changeset	35 #include "error.h"
295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe parents: diff changeset	36 #include "gripes.h"
295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe parents: diff changeset	37 #include "oct-obj.h"
2968 e330cb788508 [project @ 1997-05-15 17:40:29 by jwe] jwe parents: 2928 diff changeset	38 #include "ov-fcn.h"
5729 e065f7c18bdc [project @ 2006-04-03 19:03:30 by jwe] jwe parents: 5694 diff changeset	39 #include "ov-cell.h"
2928 295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe parents: diff changeset	40 #include "pager.h"
3243 dd00769643ae [project @ 1999-05-28 04:19:00 by jwe] jwe parents: 3131 diff changeset	41 #include "unwind-prot.h"
2928 295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe parents: diff changeset	42 #include "utils.h"
295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe parents: diff changeset	43 #include "variables.h"
295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe parents: diff changeset	44
3998 f6df65db67f9 [project @ 2002-07-24 18:10:39 by jwe] jwe parents: 3997 diff changeset	45 #include "DASSL-opts.cc"
f6df65db67f9 [project @ 2002-07-24 18:10:39 by jwe] jwe parents: 3997 diff changeset	46
2928 295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe parents: diff changeset	47 // Global pointer for user defined function required by dassl.
2968 e330cb788508 [project @ 1997-05-15 17:40:29 by jwe] jwe parents: 2928 diff changeset	48 static octave_function *dassl_fcn;
2928 295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe parents: diff changeset	49
3991 48d2bc4a3729 [project @ 2002-07-16 17:46:50 by jwe] jwe parents: 3964 diff changeset	50 // Global pointer for optional user defined jacobian function.
48d2bc4a3729 [project @ 2002-07-16 17:46:50 by jwe] jwe parents: 3964 diff changeset	51 static octave_function *dassl_jac;
48d2bc4a3729 [project @ 2002-07-16 17:46:50 by jwe] jwe parents: 3964 diff changeset	52
4140 303b28a7a7e4 [project @ 2002-11-01 02:53:13 by jwe] jwe parents: 4122 diff changeset	53 // Have we warned about imaginary values returned from user function?
303b28a7a7e4 [project @ 2002-11-01 02:53:13 by jwe] jwe parents: 4122 diff changeset	54 static bool warned_fcn_imaginary = false;
303b28a7a7e4 [project @ 2002-11-01 02:53:13 by jwe] jwe parents: 4122 diff changeset	55 static bool warned_jac_imaginary = false;
303b28a7a7e4 [project @ 2002-11-01 02:53:13 by jwe] jwe parents: 4122 diff changeset	56
3243 dd00769643ae [project @ 1999-05-28 04:19:00 by jwe] jwe parents: 3131 diff changeset	57 // Is this a recursive call?
dd00769643ae [project @ 1999-05-28 04:19:00 by jwe] jwe parents: 3131 diff changeset	58 static int call_depth = 0;
dd00769643ae [project @ 1999-05-28 04:19:00 by jwe] jwe parents: 3131 diff changeset	59
2928 295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe parents: diff changeset	60 ColumnVector
3849 5266e351a19c [project @ 2001-11-02 04:50:09 by jwe] jwe parents: 3747 diff changeset	61 dassl_user_function (const ColumnVector& x, const ColumnVector& xdot,
10154 40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 10066 diff changeset	62 double t, octave_idx_type& ires)
2928 295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe parents: diff changeset	63 {
295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe parents: diff changeset	64 ColumnVector retval;
295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe parents: diff changeset	65
20229 5dfaaaae784f Deprecate Array::capacity() and Sparse::capacity() for numel() and nzmax(). Carnë Draug <carandraug@octave.org> parents: 19697 diff changeset	66 assert (x.numel () == xdot.numel ());
2928 295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe parents: diff changeset	67
295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe parents: diff changeset	68 octave_value_list args;
4628 c0121a3b9cbe [project @ 2003-11-17 20:19:07 by jwe] jwe parents: 4140 diff changeset	69
2928 295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe parents: diff changeset	70 args(2) = t;
4628 c0121a3b9cbe [project @ 2003-11-17 20:19:07 by jwe] jwe parents: 4140 diff changeset	71 args(1) = xdot;
c0121a3b9cbe [project @ 2003-11-17 20:19:07 by jwe] jwe parents: 4140 diff changeset	72 args(0) = x;
2928 295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe parents: diff changeset	73
295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe parents: diff changeset	74 if (dassl_fcn)
295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe parents: diff changeset	75 {
20725 7164a69472dd eliminate more uses of error state John W. Eaton <jwe@octave.org> parents: 20711 diff changeset	76 octave_value_list tmp;
7164a69472dd eliminate more uses of error state John W. Eaton <jwe@octave.org> parents: 20711 diff changeset	77
7164a69472dd eliminate more uses of error state John W. Eaton <jwe@octave.org> parents: 20711 diff changeset	78 try
7164a69472dd eliminate more uses of error state John W. Eaton <jwe@octave.org> parents: 20711 diff changeset	79 {
7164a69472dd eliminate more uses of error state John W. Eaton <jwe@octave.org> parents: 20711 diff changeset	80 tmp = dassl_fcn->do_multi_index_op (1, args);
7164a69472dd eliminate more uses of error state John W. Eaton <jwe@octave.org> parents: 20711 diff changeset	81 }
20785 b6f2909e7f94 always throw exception after debugging with debug_on_error John W. Eaton <jwe@octave.org> parents: 20756 diff changeset	82 catch (octave_execution_exception& e)
20725 7164a69472dd eliminate more uses of error state John W. Eaton <jwe@octave.org> parents: 20711 diff changeset	83 {
20756 200ae1d650b7 propagate octave_execution_exception objects through try/catch blocks John W. Eaton <jwe@octave.org> parents: 20725 diff changeset	84 gripe_user_supplied_eval (e, "dassl");
20725 7164a69472dd eliminate more uses of error state John W. Eaton <jwe@octave.org> parents: 20711 diff changeset	85 }
2928 295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe parents: diff changeset	86
3849 5266e351a19c [project @ 2001-11-02 04:50:09 by jwe] jwe parents: 3747 diff changeset	87 int tlen = tmp.length ();
5266e351a19c [project @ 2001-11-02 04:50:09 by jwe] jwe parents: 3747 diff changeset	88 if (tlen > 0 && tmp(0).is_defined ())
10154 40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 10066 diff changeset	89 {
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 10066 diff changeset	90 if (! warned_fcn_imaginary && tmp(0).is_complex_type ())
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 10066 diff changeset	91 {
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 10066 diff changeset	92 warning ("dassl: ignoring imaginary part returned from user-supplied function");
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 10066 diff changeset	93 warned_fcn_imaginary = true;
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 10066 diff changeset	94 }
4140 303b28a7a7e4 [project @ 2002-11-01 02:53:13 by jwe] jwe parents: 4122 diff changeset	95
20703 85e5efae848a eliminate more uses of error_state John W. Eaton <jwe@octave.org> parents: 20687 diff changeset	96 retval = tmp(0).vector_value ();
2928 295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe parents: diff changeset	97
10154 40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 10066 diff changeset	98 if (tlen > 1)
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 10066 diff changeset	99 ires = tmp(1).int_value ();
3849 5266e351a19c [project @ 2001-11-02 04:50:09 by jwe] jwe parents: 3747 diff changeset	100
20703 85e5efae848a eliminate more uses of error_state John W. Eaton <jwe@octave.org> parents: 20687 diff changeset	101 if (retval.numel () == 0)
10154 40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 10066 diff changeset	102 gripe_user_supplied_eval ("dassl");
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 10066 diff changeset	103 }
2928 295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe parents: diff changeset	104 else
10154 40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 10066 diff changeset	105 gripe_user_supplied_eval ("dassl");
2928 295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe parents: diff changeset	106 }
295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe parents: diff changeset	107
295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe parents: diff changeset	108 return retval;
295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe parents: diff changeset	109 }
295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe parents: diff changeset	110
3991 48d2bc4a3729 [project @ 2002-07-16 17:46:50 by jwe] jwe parents: 3964 diff changeset	111 Matrix
48d2bc4a3729 [project @ 2002-07-16 17:46:50 by jwe] jwe parents: 3964 diff changeset	112 dassl_user_jacobian (const ColumnVector& x, const ColumnVector& xdot,
10154 40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 10066 diff changeset	113 double t, double cj)
3991 48d2bc4a3729 [project @ 2002-07-16 17:46:50 by jwe] jwe parents: 3964 diff changeset	114 {
48d2bc4a3729 [project @ 2002-07-16 17:46:50 by jwe] jwe parents: 3964 diff changeset	115 Matrix retval;
48d2bc4a3729 [project @ 2002-07-16 17:46:50 by jwe] jwe parents: 3964 diff changeset	116
20229 5dfaaaae784f Deprecate Array::capacity() and Sparse::capacity() for numel() and nzmax(). Carnë Draug <carandraug@octave.org> parents: 19697 diff changeset	117 assert (x.numel () == xdot.numel ());
3991 48d2bc4a3729 [project @ 2002-07-16 17:46:50 by jwe] jwe parents: 3964 diff changeset	118
48d2bc4a3729 [project @ 2002-07-16 17:46:50 by jwe] jwe parents: 3964 diff changeset	119 octave_value_list args;
48d2bc4a3729 [project @ 2002-07-16 17:46:50 by jwe] jwe parents: 3964 diff changeset	120
48d2bc4a3729 [project @ 2002-07-16 17:46:50 by jwe] jwe parents: 3964 diff changeset	121 args(3) = cj;
48d2bc4a3729 [project @ 2002-07-16 17:46:50 by jwe] jwe parents: 3964 diff changeset	122 args(2) = t;
4628 c0121a3b9cbe [project @ 2003-11-17 20:19:07 by jwe] jwe parents: 4140 diff changeset	123 args(1) = xdot;
c0121a3b9cbe [project @ 2003-11-17 20:19:07 by jwe] jwe parents: 4140 diff changeset	124 args(0) = x;
3991 48d2bc4a3729 [project @ 2002-07-16 17:46:50 by jwe] jwe parents: 3964 diff changeset	125
48d2bc4a3729 [project @ 2002-07-16 17:46:50 by jwe] jwe parents: 3964 diff changeset	126 if (dassl_jac)
48d2bc4a3729 [project @ 2002-07-16 17:46:50 by jwe] jwe parents: 3964 diff changeset	127 {
20725 7164a69472dd eliminate more uses of error state John W. Eaton <jwe@octave.org> parents: 20711 diff changeset	128 octave_value_list tmp;
7164a69472dd eliminate more uses of error state John W. Eaton <jwe@octave.org> parents: 20711 diff changeset	129
7164a69472dd eliminate more uses of error state John W. Eaton <jwe@octave.org> parents: 20711 diff changeset	130 try
7164a69472dd eliminate more uses of error state John W. Eaton <jwe@octave.org> parents: 20711 diff changeset	131 {
7164a69472dd eliminate more uses of error state John W. Eaton <jwe@octave.org> parents: 20711 diff changeset	132 tmp = dassl_jac->do_multi_index_op (1, args);
7164a69472dd eliminate more uses of error state John W. Eaton <jwe@octave.org> parents: 20711 diff changeset	133 }
20785 b6f2909e7f94 always throw exception after debugging with debug_on_error John W. Eaton <jwe@octave.org> parents: 20756 diff changeset	134 catch (octave_execution_exception& e)
20725 7164a69472dd eliminate more uses of error state John W. Eaton <jwe@octave.org> parents: 20711 diff changeset	135 {
20756 200ae1d650b7 propagate octave_execution_exception objects through try/catch blocks John W. Eaton <jwe@octave.org> parents: 20725 diff changeset	136 gripe_user_supplied_eval (e, "dassl");
20725 7164a69472dd eliminate more uses of error state John W. Eaton <jwe@octave.org> parents: 20711 diff changeset	137 }
3991 48d2bc4a3729 [project @ 2002-07-16 17:46:50 by jwe] jwe parents: 3964 diff changeset	138
48d2bc4a3729 [project @ 2002-07-16 17:46:50 by jwe] jwe parents: 3964 diff changeset	139 int tlen = tmp.length ();
48d2bc4a3729 [project @ 2002-07-16 17:46:50 by jwe] jwe parents: 3964 diff changeset	140 if (tlen > 0 && tmp(0).is_defined ())
10154 40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 10066 diff changeset	141 {
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 10066 diff changeset	142 if (! warned_jac_imaginary && tmp(0).is_complex_type ())
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 10066 diff changeset	143 {
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 10066 diff changeset	144 warning ("dassl: ignoring imaginary part returned from user-supplied jacobian function");
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 10066 diff changeset	145 warned_jac_imaginary = true;
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 10066 diff changeset	146 }
4140 303b28a7a7e4 [project @ 2002-11-01 02:53:13 by jwe] jwe parents: 4122 diff changeset	147
10154 40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 10066 diff changeset	148 retval = tmp(0).matrix_value ();
3991 48d2bc4a3729 [project @ 2002-07-16 17:46:50 by jwe] jwe parents: 3964 diff changeset	149
20703 85e5efae848a eliminate more uses of error_state John W. Eaton <jwe@octave.org> parents: 20687 diff changeset	150 if (retval.numel () == 0)
10154 40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 10066 diff changeset	151 gripe_user_supplied_eval ("dassl");
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 10066 diff changeset	152 }
3991 48d2bc4a3729 [project @ 2002-07-16 17:46:50 by jwe] jwe parents: 3964 diff changeset	153 else
10154 40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 10066 diff changeset	154 gripe_user_supplied_eval ("dassl");
3991 48d2bc4a3729 [project @ 2002-07-16 17:46:50 by jwe] jwe parents: 3964 diff changeset	155 }
48d2bc4a3729 [project @ 2002-07-16 17:46:50 by jwe] jwe parents: 3964 diff changeset	156
48d2bc4a3729 [project @ 2002-07-16 17:46:50 by jwe] jwe parents: 3964 diff changeset	157 return retval;
48d2bc4a3729 [project @ 2002-07-16 17:46:50 by jwe] jwe parents: 3964 diff changeset	158 }
48d2bc4a3729 [project @ 2002-07-16 17:46:50 by jwe] jwe parents: 3964 diff changeset	159
3323 511caaa5e98e [project @ 1999-10-27 02:21:46 by jwe] jwe parents: 3321 diff changeset	160 #define DASSL_ABORT() \
10066 2cd940306a06 make unwind_protect frames local Jaroslav Hajek <highegg@gmail.com> parents: 9758 diff changeset	161 return retval
3323 511caaa5e98e [project @ 1999-10-27 02:21:46 by jwe] jwe parents: 3321 diff changeset	162
511caaa5e98e [project @ 1999-10-27 02:21:46 by jwe] jwe parents: 3321 diff changeset	163 #define DASSL_ABORT1(msg) \
511caaa5e98e [project @ 1999-10-27 02:21:46 by jwe] jwe parents: 3321 diff changeset	164 do \
511caaa5e98e [project @ 1999-10-27 02:21:46 by jwe] jwe parents: 3321 diff changeset	165 { \
20428 7ac907da9fba Use error() rather than ::error() unless explicitly required. Rik <rik@octave.org> parents: 20232 diff changeset	166 error ("dassl: " msg); \
3323 511caaa5e98e [project @ 1999-10-27 02:21:46 by jwe] jwe parents: 3321 diff changeset	167 DASSL_ABORT (); \
511caaa5e98e [project @ 1999-10-27 02:21:46 by jwe] jwe parents: 3321 diff changeset	168 } \
511caaa5e98e [project @ 1999-10-27 02:21:46 by jwe] jwe parents: 3321 diff changeset	169 while (0)
511caaa5e98e [project @ 1999-10-27 02:21:46 by jwe] jwe parents: 3321 diff changeset	170
511caaa5e98e [project @ 1999-10-27 02:21:46 by jwe] jwe parents: 3321 diff changeset	171 #define DASSL_ABORT2(fmt, arg) \
511caaa5e98e [project @ 1999-10-27 02:21:46 by jwe] jwe parents: 3321 diff changeset	172 do \
511caaa5e98e [project @ 1999-10-27 02:21:46 by jwe] jwe parents: 3321 diff changeset	173 { \
20428 7ac907da9fba Use error() rather than ::error() unless explicitly required. Rik <rik@octave.org> parents: 20232 diff changeset	174 error ("dassl: " fmt, arg); \
3323 511caaa5e98e [project @ 1999-10-27 02:21:46 by jwe] jwe parents: 3321 diff changeset	175 DASSL_ABORT (); \
511caaa5e98e [project @ 1999-10-27 02:21:46 by jwe] jwe parents: 3321 diff changeset	176 } \
511caaa5e98e [project @ 1999-10-27 02:21:46 by jwe] jwe parents: 3321 diff changeset	177 while (0)
511caaa5e98e [project @ 1999-10-27 02:21:46 by jwe] jwe parents: 3321 diff changeset	178
15039 e753177cde93 maint: Move non-dynamically linked functions from DLD-FUNCTIONS/ to corefcn/ directory Rik <rik@octave.org> parents: 14854 diff changeset	179 DEFUN (dassl, args, nargout,
17787 175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	180 "-- texinfo --\n\
20853 1142cf6abc0d 2015 Code Sprint: remove class of function from docstring for all C++ files. Rik <rik@octave.org> parents: 20802 diff changeset	181 @deftypefn {} {[@var{x}, @var{xdot}, @var{istate}, @var{msg}] =} dassl (@var{fcn}, @var{x_0}, @var{xdot_0}, @var{t}, @var{t_crit})\n\
4115 fc2048d4cd21 [project @ 2002-10-22 21:28:42 by jwe] jwe parents: 3998 diff changeset	182 Solve the set of differential-algebraic equations\n\
fc2048d4cd21 [project @ 2002-10-22 21:28:42 by jwe] jwe parents: 3998 diff changeset	183 @tex\n\
4852 404c7122853e [project @ 2004-04-06 17:23:37 by jwe] jwe parents: 4698 diff changeset	184 $$ 0 = f (x, \\dot{x}, t) $$\n\
4115 fc2048d4cd21 [project @ 2002-10-22 21:28:42 by jwe] jwe parents: 3998 diff changeset	185 with\n\
fc2048d4cd21 [project @ 2002-10-22 21:28:42 by jwe] jwe parents: 3998 diff changeset	186 $$ x(t_0) = x_0, \\dot{x}(t_0) = \\dot{x}_0 $$\n\
fc2048d4cd21 [project @ 2002-10-22 21:28:42 by jwe] jwe parents: 3998 diff changeset	187 @end tex\n\
8517 81d6ab3ac93c Allow documentation tobe built for other formats than tex and info sh@sh-laptop parents: 7562 diff changeset	188 @ifnottex\n\
4115 fc2048d4cd21 [project @ 2002-10-22 21:28:42 by jwe] jwe parents: 3998 diff changeset	189 \n\
fc2048d4cd21 [project @ 2002-10-22 21:28:42 by jwe] jwe parents: 3998 diff changeset	190 @example\n\
4698 737fd5c0ae06 [project @ 2004-01-19 19:25:26 by jwe] jwe parents: 4628 diff changeset	191 0 = f (x, xdot, t)\n\
4115 fc2048d4cd21 [project @ 2002-10-22 21:28:42 by jwe] jwe parents: 3998 diff changeset	192 @end example\n\
fc2048d4cd21 [project @ 2002-10-22 21:28:42 by jwe] jwe parents: 3998 diff changeset	193 \n\
4912 048db020498c [project @ 2004-07-22 20:45:59 by jwe] jwe parents: 4888 diff changeset	194 @noindent\n\
4115 fc2048d4cd21 [project @ 2002-10-22 21:28:42 by jwe] jwe parents: 3998 diff changeset	195 with\n\
fc2048d4cd21 [project @ 2002-10-22 21:28:42 by jwe] jwe parents: 3998 diff changeset	196 \n\
fc2048d4cd21 [project @ 2002-10-22 21:28:42 by jwe] jwe parents: 3998 diff changeset	197 @example\n\
fc2048d4cd21 [project @ 2002-10-22 21:28:42 by jwe] jwe parents: 3998 diff changeset	198 x(t_0) = x_0, xdot(t_0) = xdot_0\n\
fc2048d4cd21 [project @ 2002-10-22 21:28:42 by jwe] jwe parents: 3998 diff changeset	199 @end example\n\
fc2048d4cd21 [project @ 2002-10-22 21:28:42 by jwe] jwe parents: 3998 diff changeset	200 \n\
8517 81d6ab3ac93c Allow documentation tobe built for other formats than tex and info sh@sh-laptop parents: 7562 diff changeset	201 @end ifnottex\n\
4115 fc2048d4cd21 [project @ 2002-10-22 21:28:42 by jwe] jwe parents: 3998 diff changeset	202 The solution is returned in the matrices @var{x} and @var{xdot},\n\
fc2048d4cd21 [project @ 2002-10-22 21:28:42 by jwe] jwe parents: 3998 diff changeset	203 with each row in the result matrices corresponding to one of the\n\
3373 36405da8e173 [project @ 1999-11-23 20:54:17 by jwe] jwe parents: 3325 diff changeset	204 elements in the vector @var{t}. The first element of @var{t}\n\
4115 fc2048d4cd21 [project @ 2002-10-22 21:28:42 by jwe] jwe parents: 3998 diff changeset	205 should be @math{t_0} and correspond to the initial state of the\n\
fc2048d4cd21 [project @ 2002-10-22 21:28:42 by jwe] jwe parents: 3998 diff changeset	206 system @var{x_0} and its derivative @var{xdot_0}, so that the first\n\
fc2048d4cd21 [project @ 2002-10-22 21:28:42 by jwe] jwe parents: 3998 diff changeset	207 row of the output @var{x} is @var{x_0} and the first row\n\
fc2048d4cd21 [project @ 2002-10-22 21:28:42 by jwe] jwe parents: 3998 diff changeset	208 of the output @var{xdot} is @var{xdot_0}.\n\
3373 36405da8e173 [project @ 1999-11-23 20:54:17 by jwe] jwe parents: 3325 diff changeset	209 \n\
8787 5b23faa8113c Documentation fixes. Olaf Till <olaf.till@uni-jena.de> parents: 8517 diff changeset	210 The first argument, @var{fcn}, is a string, inline, or function handle\n\
5b23faa8113c Documentation fixes. Olaf Till <olaf.till@uni-jena.de> parents: 8517 diff changeset	211 that names the function @math{f} to call to compute the vector of\n\
5b23faa8113c Documentation fixes. Olaf Till <olaf.till@uni-jena.de> parents: 8517 diff changeset	212 residuals for the set of equations. It must have the form\n\
3373 36405da8e173 [project @ 1999-11-23 20:54:17 by jwe] jwe parents: 3325 diff changeset	213 \n\
36405da8e173 [project @ 1999-11-23 20:54:17 by jwe] jwe parents: 3325 diff changeset	214 @example\n\
36405da8e173 [project @ 1999-11-23 20:54:17 by jwe] jwe parents: 3325 diff changeset	215 @var{res} = f (@var{x}, @var{xdot}, @var{t})\n\
36405da8e173 [project @ 1999-11-23 20:54:17 by jwe] jwe parents: 3325 diff changeset	216 @end example\n\
2928 295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe parents: diff changeset	217 \n\
3373 36405da8e173 [project @ 1999-11-23 20:54:17 by jwe] jwe parents: 3325 diff changeset	218 @noindent\n\
4115 fc2048d4cd21 [project @ 2002-10-22 21:28:42 by jwe] jwe parents: 3998 diff changeset	219 in which @var{x}, @var{xdot}, and @var{res} are vectors, and @var{t} is a\n\
3373 36405da8e173 [project @ 1999-11-23 20:54:17 by jwe] jwe parents: 3325 diff changeset	220 scalar.\n\
36405da8e173 [project @ 1999-11-23 20:54:17 by jwe] jwe parents: 3325 diff changeset	221 \n\
8787 5b23faa8113c Documentation fixes. Olaf Till <olaf.till@uni-jena.de> parents: 8517 diff changeset	222 If @var{fcn} is a two-element string array or a two-element cell array\n\
9067 8970b4b10e9f Cleanup documentation for quad.texi and diffeq.texi Rik <rdrider0-list@yahoo.com> parents: 9064 diff changeset	223 of strings, inline functions, or function handles, the first element names\n\
8787 5b23faa8113c Documentation fixes. Olaf Till <olaf.till@uni-jena.de> parents: 8517 diff changeset	224 the function @math{f} described above, and the second element names a\n\
5b23faa8113c Documentation fixes. Olaf Till <olaf.till@uni-jena.de> parents: 8517 diff changeset	225 function to compute the modified Jacobian\n\
4115 fc2048d4cd21 [project @ 2002-10-22 21:28:42 by jwe] jwe parents: 3998 diff changeset	226 \n\
fc2048d4cd21 [project @ 2002-10-22 21:28:42 by jwe] jwe parents: 3998 diff changeset	227 @tex\n\
fc2048d4cd21 [project @ 2002-10-22 21:28:42 by jwe] jwe parents: 3998 diff changeset	228 $$\n\
fc2048d4cd21 [project @ 2002-10-22 21:28:42 by jwe] jwe parents: 3998 diff changeset	229 J = {\\partial f \\over \\partial x}\n\
fc2048d4cd21 [project @ 2002-10-22 21:28:42 by jwe] jwe parents: 3998 diff changeset	230 + c {\\partial f \\over \\partial \\dot{x}}\n\
fc2048d4cd21 [project @ 2002-10-22 21:28:42 by jwe] jwe parents: 3998 diff changeset	231 $$\n\
fc2048d4cd21 [project @ 2002-10-22 21:28:42 by jwe] jwe parents: 3998 diff changeset	232 @end tex\n\
8517 81d6ab3ac93c Allow documentation tobe built for other formats than tex and info sh@sh-laptop parents: 7562 diff changeset	233 @ifnottex\n\
10840 89f4d7e294cc Grammarcheck .cc files Rik <octave@nomad.inbox5.com> parents: 10155 diff changeset	234 \n\
4888 4a796c5fc7a3 [project @ 2004-04-30 18:27:07 by jwe] jwe parents: 4852 diff changeset	235 @example\n\
9064 7c02ec148a3c Check grammar on all .cc files Rik <rdrider0-list@yahoo.com> parents: 8920 diff changeset	236 @group\n\
4115 fc2048d4cd21 [project @ 2002-10-22 21:28:42 by jwe] jwe parents: 3998 diff changeset	237 df df\n\
fc2048d4cd21 [project @ 2002-10-22 21:28:42 by jwe] jwe parents: 3998 diff changeset	238 jac = -- + c ------\n\
fc2048d4cd21 [project @ 2002-10-22 21:28:42 by jwe] jwe parents: 3998 diff changeset	239 dx d xdot\n\
9064 7c02ec148a3c Check grammar on all .cc files Rik <rdrider0-list@yahoo.com> parents: 8920 diff changeset	240 @end group\n\
4115 fc2048d4cd21 [project @ 2002-10-22 21:28:42 by jwe] jwe parents: 3998 diff changeset	241 @end example\n\
10840 89f4d7e294cc Grammarcheck .cc files Rik <octave@nomad.inbox5.com> parents: 10155 diff changeset	242 \n\
8517 81d6ab3ac93c Allow documentation tobe built for other formats than tex and info sh@sh-laptop parents: 7562 diff changeset	243 @end ifnottex\n\
4115 fc2048d4cd21 [project @ 2002-10-22 21:28:42 by jwe] jwe parents: 3998 diff changeset	244 \n\
fc2048d4cd21 [project @ 2002-10-22 21:28:42 by jwe] jwe parents: 3998 diff changeset	245 The modified Jacobian function must have the form\n\
fc2048d4cd21 [project @ 2002-10-22 21:28:42 by jwe] jwe parents: 3998 diff changeset	246 \n\
fc2048d4cd21 [project @ 2002-10-22 21:28:42 by jwe] jwe parents: 3998 diff changeset	247 @example\n\
9064 7c02ec148a3c Check grammar on all .cc files Rik <rdrider0-list@yahoo.com> parents: 8920 diff changeset	248 @group\n\
4115 fc2048d4cd21 [project @ 2002-10-22 21:28:42 by jwe] jwe parents: 3998 diff changeset	249 \n\
fc2048d4cd21 [project @ 2002-10-22 21:28:42 by jwe] jwe parents: 3998 diff changeset	250 @var{jac} = j (@var{x}, @var{xdot}, @var{t}, @var{c})\n\
fc2048d4cd21 [project @ 2002-10-22 21:28:42 by jwe] jwe parents: 3998 diff changeset	251 \n\
9064 7c02ec148a3c Check grammar on all .cc files Rik <rdrider0-list@yahoo.com> parents: 8920 diff changeset	252 @end group\n\
4115 fc2048d4cd21 [project @ 2002-10-22 21:28:42 by jwe] jwe parents: 3998 diff changeset	253 @end example\n\
fc2048d4cd21 [project @ 2002-10-22 21:28:42 by jwe] jwe parents: 3998 diff changeset	254 \n\
3373 36405da8e173 [project @ 1999-11-23 20:54:17 by jwe] jwe parents: 3325 diff changeset	255 The second and third arguments to @code{dassl} specify the initial\n\
36405da8e173 [project @ 1999-11-23 20:54:17 by jwe] jwe parents: 3325 diff changeset	256 condition of the states and their derivatives, and the fourth argument\n\
4115 fc2048d4cd21 [project @ 2002-10-22 21:28:42 by jwe] jwe parents: 3998 diff changeset	257 specifies a vector of output times at which the solution is desired,\n\
3373 36405da8e173 [project @ 1999-11-23 20:54:17 by jwe] jwe parents: 3325 diff changeset	258 including the time corresponding to the initial condition.\n\
2928 295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe parents: diff changeset	259 \n\
3373 36405da8e173 [project @ 1999-11-23 20:54:17 by jwe] jwe parents: 3325 diff changeset	260 The set of initial states and derivatives are not strictly required to\n\
10840 89f4d7e294cc Grammarcheck .cc files Rik <octave@nomad.inbox5.com> parents: 10155 diff changeset	261 be consistent. In practice, however, @sc{dassl} is not very good at\n\
3373 36405da8e173 [project @ 1999-11-23 20:54:17 by jwe] jwe parents: 3325 diff changeset	262 determining a consistent set for you, so it is best if you ensure that\n\
36405da8e173 [project @ 1999-11-23 20:54:17 by jwe] jwe parents: 3325 diff changeset	263 the initial values result in the function evaluating to zero.\n\
2928 295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe parents: diff changeset	264 \n\
3373 36405da8e173 [project @ 1999-11-23 20:54:17 by jwe] jwe parents: 3325 diff changeset	265 The fifth argument is optional, and may be used to specify a set of\n\
36405da8e173 [project @ 1999-11-23 20:54:17 by jwe] jwe parents: 3325 diff changeset	266 times that the DAE solver should not integrate past. It is useful for\n\
36405da8e173 [project @ 1999-11-23 20:54:17 by jwe] jwe parents: 3325 diff changeset	267 avoiding difficulties with singularities and points where there is a\n\
36405da8e173 [project @ 1999-11-23 20:54:17 by jwe] jwe parents: 3325 diff changeset	268 discontinuity in the derivative.\n\
3964 3030cb6cb559 [project @ 2002-06-28 17:17:55 by jwe] jwe parents: 3849 diff changeset	269 \n\
4115 fc2048d4cd21 [project @ 2002-10-22 21:28:42 by jwe] jwe parents: 3998 diff changeset	270 After a successful computation, the value of @var{istate} will be\n\
10840 89f4d7e294cc Grammarcheck .cc files Rik <octave@nomad.inbox5.com> parents: 10155 diff changeset	271 greater than zero (consistent with the Fortran version of @sc{dassl}).\n\
4115 fc2048d4cd21 [project @ 2002-10-22 21:28:42 by jwe] jwe parents: 3998 diff changeset	272 \n\
fc2048d4cd21 [project @ 2002-10-22 21:28:42 by jwe] jwe parents: 3998 diff changeset	273 If the computation is not successful, the value of @var{istate} will be\n\
fc2048d4cd21 [project @ 2002-10-22 21:28:42 by jwe] jwe parents: 3998 diff changeset	274 less than zero and @var{msg} will contain additional information.\n\
fc2048d4cd21 [project @ 2002-10-22 21:28:42 by jwe] jwe parents: 3998 diff changeset	275 \n\
3964 3030cb6cb559 [project @ 2002-06-28 17:17:55 by jwe] jwe parents: 3849 diff changeset	276 You can use the function @code{dassl_options} to set optional\n\
3030cb6cb559 [project @ 2002-06-28 17:17:55 by jwe] jwe parents: 3849 diff changeset	277 parameters for @code{dassl}.\n\
5694 95d90f781ca8 [project @ 2006-03-20 18:29:20 by jwe] jwe parents: 5642 diff changeset	278 @seealso{daspk, dasrt, lsode}\n\
5642 2618a0750ae6 [project @ 2006-03-06 21:26:48 by jwe] jwe parents: 5307 diff changeset	279 @end deftypefn")
2928 295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe parents: diff changeset	280 {
20892 c07bee629973 2015 Code Sprint: use ovl (). Rik <rik@octave.org> parents: 20853 diff changeset	281 octave_value_list retval (4);
2928 295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe parents: diff changeset	282
4140 303b28a7a7e4 [project @ 2002-11-01 02:53:13 by jwe] jwe parents: 4122 diff changeset	283 warned_fcn_imaginary = false;
303b28a7a7e4 [project @ 2002-11-01 02:53:13 by jwe] jwe parents: 4122 diff changeset	284 warned_jac_imaginary = false;
303b28a7a7e4 [project @ 2002-11-01 02:53:13 by jwe] jwe parents: 4122 diff changeset	285
10066 2cd940306a06 make unwind_protect frames local Jaroslav Hajek <highegg@gmail.com> parents: 9758 diff changeset	286 unwind_protect frame;
2928 295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe parents: diff changeset	287
10066 2cd940306a06 make unwind_protect frames local Jaroslav Hajek <highegg@gmail.com> parents: 9758 diff changeset	288 frame.protect_var (call_depth);
3243 dd00769643ae [project @ 1999-05-28 04:19:00 by jwe] jwe parents: 3131 diff changeset	289 call_depth++;
2928 295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe parents: diff changeset	290
3243 dd00769643ae [project @ 1999-05-28 04:19:00 by jwe] jwe parents: 3131 diff changeset	291 if (call_depth > 1)
3323 511caaa5e98e [project @ 1999-10-27 02:21:46 by jwe] jwe parents: 3321 diff changeset	292 DASSL_ABORT1 ("invalid recursive call");
2928 295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe parents: diff changeset	293
3243 dd00769643ae [project @ 1999-05-28 04:19:00 by jwe] jwe parents: 3131 diff changeset	294 int nargin = args.length ();
dd00769643ae [project @ 1999-05-28 04:19:00 by jwe] jwe parents: 3131 diff changeset	295
20802 8bb38ba1bad6 eliminate return statements after calls to print_usage John W. Eaton <jwe@octave.org> parents: 20785 diff changeset	296 if (nargin < 4 \|\| nargin > 5 \|\| nargout > 4)
8bb38ba1bad6 eliminate return statements after calls to print_usage John W. Eaton <jwe@octave.org> parents: 20785 diff changeset	297 print_usage ();
8bb38ba1bad6 eliminate return statements after calls to print_usage John W. Eaton <jwe@octave.org> parents: 20785 diff changeset	298
8bb38ba1bad6 eliminate return statements after calls to print_usage John W. Eaton <jwe@octave.org> parents: 20785 diff changeset	299 std::string fcn_name, fname, jac_name, jname;
8bb38ba1bad6 eliminate return statements after calls to print_usage John W. Eaton <jwe@octave.org> parents: 20785 diff changeset	300 dassl_fcn = 0;
8bb38ba1bad6 eliminate return statements after calls to print_usage John W. Eaton <jwe@octave.org> parents: 20785 diff changeset	301 dassl_jac = 0;
8bb38ba1bad6 eliminate return statements after calls to print_usage John W. Eaton <jwe@octave.org> parents: 20785 diff changeset	302
8bb38ba1bad6 eliminate return statements after calls to print_usage John W. Eaton <jwe@octave.org> parents: 20785 diff changeset	303 octave_value f_arg = args(0);
8bb38ba1bad6 eliminate return statements after calls to print_usage John W. Eaton <jwe@octave.org> parents: 20785 diff changeset	304
8bb38ba1bad6 eliminate return statements after calls to print_usage John W. Eaton <jwe@octave.org> parents: 20785 diff changeset	305 if (f_arg.is_cell ())
2928 295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe parents: diff changeset	306 {
20802 8bb38ba1bad6 eliminate return statements after calls to print_usage John W. Eaton <jwe@octave.org> parents: 20785 diff changeset	307 Cell c = f_arg.cell_value ();
8bb38ba1bad6 eliminate return statements after calls to print_usage John W. Eaton <jwe@octave.org> parents: 20785 diff changeset	308 if (c.numel () == 1)
8bb38ba1bad6 eliminate return statements after calls to print_usage John W. Eaton <jwe@octave.org> parents: 20785 diff changeset	309 f_arg = c(0);
8bb38ba1bad6 eliminate return statements after calls to print_usage John W. Eaton <jwe@octave.org> parents: 20785 diff changeset	310 else if (c.numel () == 2)
8bb38ba1bad6 eliminate return statements after calls to print_usage John W. Eaton <jwe@octave.org> parents: 20785 diff changeset	311 {
8bb38ba1bad6 eliminate return statements after calls to print_usage John W. Eaton <jwe@octave.org> parents: 20785 diff changeset	312 if (c(0).is_function_handle () \|\| c(0).is_inline_function ())
8bb38ba1bad6 eliminate return statements after calls to print_usage John W. Eaton <jwe@octave.org> parents: 20785 diff changeset	313 dassl_fcn = c(0).function_value ();
8bb38ba1bad6 eliminate return statements after calls to print_usage John W. Eaton <jwe@octave.org> parents: 20785 diff changeset	314 else
8bb38ba1bad6 eliminate return statements after calls to print_usage John W. Eaton <jwe@octave.org> parents: 20785 diff changeset	315 {
8bb38ba1bad6 eliminate return statements after calls to print_usage John W. Eaton <jwe@octave.org> parents: 20785 diff changeset	316 fcn_name = unique_symbol_name ("__dassl_fcn__");
8bb38ba1bad6 eliminate return statements after calls to print_usage John W. Eaton <jwe@octave.org> parents: 20785 diff changeset	317 fname = "function y = ";
8bb38ba1bad6 eliminate return statements after calls to print_usage John W. Eaton <jwe@octave.org> parents: 20785 diff changeset	318 fname.append (fcn_name);
8bb38ba1bad6 eliminate return statements after calls to print_usage John W. Eaton <jwe@octave.org> parents: 20785 diff changeset	319 fname.append (" (x, xdot, t) y = ");
8bb38ba1bad6 eliminate return statements after calls to print_usage John W. Eaton <jwe@octave.org> parents: 20785 diff changeset	320 dassl_fcn = extract_function (c(0), "dassl", fcn_name, fname,
8bb38ba1bad6 eliminate return statements after calls to print_usage John W. Eaton <jwe@octave.org> parents: 20785 diff changeset	321 "; endfunction");
8bb38ba1bad6 eliminate return statements after calls to print_usage John W. Eaton <jwe@octave.org> parents: 20785 diff changeset	322 }
3991 48d2bc4a3729 [project @ 2002-07-16 17:46:50 by jwe] jwe parents: 3964 diff changeset	323
20802 8bb38ba1bad6 eliminate return statements after calls to print_usage John W. Eaton <jwe@octave.org> parents: 20785 diff changeset	324 if (dassl_fcn)
8bb38ba1bad6 eliminate return statements after calls to print_usage John W. Eaton <jwe@octave.org> parents: 20785 diff changeset	325 {
8bb38ba1bad6 eliminate return statements after calls to print_usage John W. Eaton <jwe@octave.org> parents: 20785 diff changeset	326 if (c(1).is_function_handle () \|\| c(1).is_inline_function ())
8bb38ba1bad6 eliminate return statements after calls to print_usage John W. Eaton <jwe@octave.org> parents: 20785 diff changeset	327 dassl_jac = c(1).function_value ();
8bb38ba1bad6 eliminate return statements after calls to print_usage John W. Eaton <jwe@octave.org> parents: 20785 diff changeset	328 else
8bb38ba1bad6 eliminate return statements after calls to print_usage John W. Eaton <jwe@octave.org> parents: 20785 diff changeset	329 {
8bb38ba1bad6 eliminate return statements after calls to print_usage John W. Eaton <jwe@octave.org> parents: 20785 diff changeset	330 jac_name = unique_symbol_name ("__dassl_jac__");
8bb38ba1bad6 eliminate return statements after calls to print_usage John W. Eaton <jwe@octave.org> parents: 20785 diff changeset	331 jname = "function jac = ";
8bb38ba1bad6 eliminate return statements after calls to print_usage John W. Eaton <jwe@octave.org> parents: 20785 diff changeset	332 jname.append (jac_name);
8bb38ba1bad6 eliminate return statements after calls to print_usage John W. Eaton <jwe@octave.org> parents: 20785 diff changeset	333 jname.append (" (x, xdot, t, cj) jac = ");
8bb38ba1bad6 eliminate return statements after calls to print_usage John W. Eaton <jwe@octave.org> parents: 20785 diff changeset	334 dassl_jac = extract_function (c(1), "dassl", jac_name,
8bb38ba1bad6 eliminate return statements after calls to print_usage John W. Eaton <jwe@octave.org> parents: 20785 diff changeset	335 jname, "; endfunction");
8bb38ba1bad6 eliminate return statements after calls to print_usage John W. Eaton <jwe@octave.org> parents: 20785 diff changeset	336
8bb38ba1bad6 eliminate return statements after calls to print_usage John W. Eaton <jwe@octave.org> parents: 20785 diff changeset	337 if (!dassl_jac)
8bb38ba1bad6 eliminate return statements after calls to print_usage John W. Eaton <jwe@octave.org> parents: 20785 diff changeset	338 {
8bb38ba1bad6 eliminate return statements after calls to print_usage John W. Eaton <jwe@octave.org> parents: 20785 diff changeset	339 if (fcn_name.length ())
8bb38ba1bad6 eliminate return statements after calls to print_usage John W. Eaton <jwe@octave.org> parents: 20785 diff changeset	340 clear_function (fcn_name);
8bb38ba1bad6 eliminate return statements after calls to print_usage John W. Eaton <jwe@octave.org> parents: 20785 diff changeset	341 dassl_fcn = 0;
8bb38ba1bad6 eliminate return statements after calls to print_usage John W. Eaton <jwe@octave.org> parents: 20785 diff changeset	342 }
8bb38ba1bad6 eliminate return statements after calls to print_usage John W. Eaton <jwe@octave.org> parents: 20785 diff changeset	343 }
8bb38ba1bad6 eliminate return statements after calls to print_usage John W. Eaton <jwe@octave.org> parents: 20785 diff changeset	344 }
8bb38ba1bad6 eliminate return statements after calls to print_usage John W. Eaton <jwe@octave.org> parents: 20785 diff changeset	345 }
8bb38ba1bad6 eliminate return statements after calls to print_usage John W. Eaton <jwe@octave.org> parents: 20785 diff changeset	346 else
8bb38ba1bad6 eliminate return statements after calls to print_usage John W. Eaton <jwe@octave.org> parents: 20785 diff changeset	347 DASSL_ABORT1 ("incorrect number of elements in cell array");
8bb38ba1bad6 eliminate return statements after calls to print_usage John W. Eaton <jwe@octave.org> parents: 20785 diff changeset	348 }
8bb38ba1bad6 eliminate return statements after calls to print_usage John W. Eaton <jwe@octave.org> parents: 20785 diff changeset	349
8bb38ba1bad6 eliminate return statements after calls to print_usage John W. Eaton <jwe@octave.org> parents: 20785 diff changeset	350 if (!dassl_fcn && ! f_arg.is_cell ())
8bb38ba1bad6 eliminate return statements after calls to print_usage John W. Eaton <jwe@octave.org> parents: 20785 diff changeset	351 {
8bb38ba1bad6 eliminate return statements after calls to print_usage John W. Eaton <jwe@octave.org> parents: 20785 diff changeset	352 if (f_arg.is_function_handle () \|\| f_arg.is_inline_function ())
8bb38ba1bad6 eliminate return statements after calls to print_usage John W. Eaton <jwe@octave.org> parents: 20785 diff changeset	353 dassl_fcn = f_arg.function_value ();
8bb38ba1bad6 eliminate return statements after calls to print_usage John W. Eaton <jwe@octave.org> parents: 20785 diff changeset	354 else
10154 40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 10066 diff changeset	355 {
20802 8bb38ba1bad6 eliminate return statements after calls to print_usage John W. Eaton <jwe@octave.org> parents: 20785 diff changeset	356 switch (f_arg.rows ())
10154 40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 10066 diff changeset	357 {
20802 8bb38ba1bad6 eliminate return statements after calls to print_usage John W. Eaton <jwe@octave.org> parents: 20785 diff changeset	358 case 1:
8bb38ba1bad6 eliminate return statements after calls to print_usage John W. Eaton <jwe@octave.org> parents: 20785 diff changeset	359 do
10154 40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 10066 diff changeset	360 {
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 10066 diff changeset	361 fcn_name = unique_symbol_name ("__dassl_fcn__");
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 10066 diff changeset	362 fname = "function y = ";
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 10066 diff changeset	363 fname.append (fcn_name);
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 10066 diff changeset	364 fname.append (" (x, xdot, t) y = ");
20802 8bb38ba1bad6 eliminate return statements after calls to print_usage John W. Eaton <jwe@octave.org> parents: 20785 diff changeset	365 dassl_fcn = extract_function (f_arg, "dassl", fcn_name,
8bb38ba1bad6 eliminate return statements after calls to print_usage John W. Eaton <jwe@octave.org> parents: 20785 diff changeset	366 fname, "; endfunction");
10154 40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 10066 diff changeset	367 }
20802 8bb38ba1bad6 eliminate return statements after calls to print_usage John W. Eaton <jwe@octave.org> parents: 20785 diff changeset	368 while (0);
8bb38ba1bad6 eliminate return statements after calls to print_usage John W. Eaton <jwe@octave.org> parents: 20785 diff changeset	369 break;
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	370
20802 8bb38ba1bad6 eliminate return statements after calls to print_usage John W. Eaton <jwe@octave.org> parents: 20785 diff changeset	371 case 2:
8bb38ba1bad6 eliminate return statements after calls to print_usage John W. Eaton <jwe@octave.org> parents: 20785 diff changeset	372 {
8bb38ba1bad6 eliminate return statements after calls to print_usage John W. Eaton <jwe@octave.org> parents: 20785 diff changeset	373 string_vector tmp = f_arg.all_strings ();
3243 dd00769643ae [project @ 1999-05-28 04:19:00 by jwe] jwe parents: 3131 diff changeset	374
20802 8bb38ba1bad6 eliminate return statements after calls to print_usage John W. Eaton <jwe@octave.org> parents: 20785 diff changeset	375 fcn_name = unique_symbol_name ("__dassl_fcn__");
8bb38ba1bad6 eliminate return statements after calls to print_usage John W. Eaton <jwe@octave.org> parents: 20785 diff changeset	376 fname = "function y = ";
8bb38ba1bad6 eliminate return statements after calls to print_usage John W. Eaton <jwe@octave.org> parents: 20785 diff changeset	377 fname.append (fcn_name);
8bb38ba1bad6 eliminate return statements after calls to print_usage John W. Eaton <jwe@octave.org> parents: 20785 diff changeset	378 fname.append (" (x, xdot, t) y = ");
8bb38ba1bad6 eliminate return statements after calls to print_usage John W. Eaton <jwe@octave.org> parents: 20785 diff changeset	379 dassl_fcn = extract_function (tmp(0), "dassl", fcn_name,
8bb38ba1bad6 eliminate return statements after calls to print_usage John W. Eaton <jwe@octave.org> parents: 20785 diff changeset	380 fname, "; endfunction");
3991 48d2bc4a3729 [project @ 2002-07-16 17:46:50 by jwe] jwe parents: 3964 diff changeset	381
20802 8bb38ba1bad6 eliminate return statements after calls to print_usage John W. Eaton <jwe@octave.org> parents: 20785 diff changeset	382 if (dassl_fcn)
10154 40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 10066 diff changeset	383 {
20802 8bb38ba1bad6 eliminate return statements after calls to print_usage John W. Eaton <jwe@octave.org> parents: 20785 diff changeset	384 jac_name = unique_symbol_name ("__dassl_jac__");
8bb38ba1bad6 eliminate return statements after calls to print_usage John W. Eaton <jwe@octave.org> parents: 20785 diff changeset	385 jname = "function jac = ";
8bb38ba1bad6 eliminate return statements after calls to print_usage John W. Eaton <jwe@octave.org> parents: 20785 diff changeset	386 jname.append (jac_name);
8bb38ba1bad6 eliminate return statements after calls to print_usage John W. Eaton <jwe@octave.org> parents: 20785 diff changeset	387 jname.append (" (x, xdot, t, cj) jac = ");
8bb38ba1bad6 eliminate return statements after calls to print_usage John W. Eaton <jwe@octave.org> parents: 20785 diff changeset	388 dassl_jac = extract_function (tmp(1), "dassl",
8bb38ba1bad6 eliminate return statements after calls to print_usage John W. Eaton <jwe@octave.org> parents: 20785 diff changeset	389 jac_name, jname,
8bb38ba1bad6 eliminate return statements after calls to print_usage John W. Eaton <jwe@octave.org> parents: 20785 diff changeset	390 "; endfunction");
5729 e065f7c18bdc [project @ 2006-04-03 19:03:30 by jwe] jwe parents: 5694 diff changeset	391
20802 8bb38ba1bad6 eliminate return statements after calls to print_usage John W. Eaton <jwe@octave.org> parents: 20785 diff changeset	392 if (!dassl_jac)
10154 40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 10066 diff changeset	393 {
20802 8bb38ba1bad6 eliminate return statements after calls to print_usage John W. Eaton <jwe@octave.org> parents: 20785 diff changeset	394 if (fcn_name.length ())
8bb38ba1bad6 eliminate return statements after calls to print_usage John W. Eaton <jwe@octave.org> parents: 20785 diff changeset	395 clear_function (fcn_name);
8bb38ba1bad6 eliminate return statements after calls to print_usage John W. Eaton <jwe@octave.org> parents: 20785 diff changeset	396 dassl_fcn = 0;
10154 40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 10066 diff changeset	397 }
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 10066 diff changeset	398 }
20802 8bb38ba1bad6 eliminate return statements after calls to print_usage John W. Eaton <jwe@octave.org> parents: 20785 diff changeset	399 }
10154 40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 10066 diff changeset	400 }
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 10066 diff changeset	401 }
20802 8bb38ba1bad6 eliminate return statements after calls to print_usage John W. Eaton <jwe@octave.org> parents: 20785 diff changeset	402 }
3243 dd00769643ae [project @ 1999-05-28 04:19:00 by jwe] jwe parents: 3131 diff changeset	403
20802 8bb38ba1bad6 eliminate return statements after calls to print_usage John W. Eaton <jwe@octave.org> parents: 20785 diff changeset	404 if (! dassl_fcn)
8bb38ba1bad6 eliminate return statements after calls to print_usage John W. Eaton <jwe@octave.org> parents: 20785 diff changeset	405 DASSL_ABORT ();
3243 dd00769643ae [project @ 1999-05-28 04:19:00 by jwe] jwe parents: 3131 diff changeset	406
20802 8bb38ba1bad6 eliminate return statements after calls to print_usage John W. Eaton <jwe@octave.org> parents: 20785 diff changeset	407 ColumnVector state = args(1).xvector_value ("dassl: initial state X_0 must be a vector");
2928 295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe parents: diff changeset	408
20802 8bb38ba1bad6 eliminate return statements after calls to print_usage John W. Eaton <jwe@octave.org> parents: 20785 diff changeset	409 ColumnVector deriv = args(2).xvector_value ("dassl: initial derivatives XDOT_0 must be a vector");
8bb38ba1bad6 eliminate return statements after calls to print_usage John W. Eaton <jwe@octave.org> parents: 20785 diff changeset	410
8bb38ba1bad6 eliminate return statements after calls to print_usage John W. Eaton <jwe@octave.org> parents: 20785 diff changeset	411 ColumnVector out_times = args(3).xvector_value ("dassl: output time variable T must be a vector");
2928 295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe parents: diff changeset	412
20802 8bb38ba1bad6 eliminate return statements after calls to print_usage John W. Eaton <jwe@octave.org> parents: 20785 diff changeset	413 ColumnVector crit_times;
8bb38ba1bad6 eliminate return statements after calls to print_usage John W. Eaton <jwe@octave.org> parents: 20785 diff changeset	414 int crit_times_set = 0;
8bb38ba1bad6 eliminate return statements after calls to print_usage John W. Eaton <jwe@octave.org> parents: 20785 diff changeset	415 if (nargin > 4)
8bb38ba1bad6 eliminate return statements after calls to print_usage John W. Eaton <jwe@octave.org> parents: 20785 diff changeset	416 {
8bb38ba1bad6 eliminate return statements after calls to print_usage John W. Eaton <jwe@octave.org> parents: 20785 diff changeset	417 crit_times = args(4).xvector_value ("dassl: list of critical times T_CRIT must be a vector");
2928 295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe parents: diff changeset	418
20802 8bb38ba1bad6 eliminate return statements after calls to print_usage John W. Eaton <jwe@octave.org> parents: 20785 diff changeset	419 crit_times_set = 1;
8bb38ba1bad6 eliminate return statements after calls to print_usage John W. Eaton <jwe@octave.org> parents: 20785 diff changeset	420 }
3991 48d2bc4a3729 [project @ 2002-07-16 17:46:50 by jwe] jwe parents: 3964 diff changeset	421
20802 8bb38ba1bad6 eliminate return statements after calls to print_usage John W. Eaton <jwe@octave.org> parents: 20785 diff changeset	422 if (state.numel () != deriv.numel ())
8bb38ba1bad6 eliminate return statements after calls to print_usage John W. Eaton <jwe@octave.org> parents: 20785 diff changeset	423 DASSL_ABORT1 ("X and XDOT_0 must have the same size");
3991 48d2bc4a3729 [project @ 2002-07-16 17:46:50 by jwe] jwe parents: 3964 diff changeset	424
20802 8bb38ba1bad6 eliminate return statements after calls to print_usage John W. Eaton <jwe@octave.org> parents: 20785 diff changeset	425 double tzero = out_times (0);
2928 295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe parents: diff changeset	426
20802 8bb38ba1bad6 eliminate return statements after calls to print_usage John W. Eaton <jwe@octave.org> parents: 20785 diff changeset	427 DAEFunc func (dassl_user_function);
8bb38ba1bad6 eliminate return statements after calls to print_usage John W. Eaton <jwe@octave.org> parents: 20785 diff changeset	428 if (dassl_jac)
8bb38ba1bad6 eliminate return statements after calls to print_usage John W. Eaton <jwe@octave.org> parents: 20785 diff changeset	429 func.set_jacobian_function (dassl_user_jacobian);
3243 dd00769643ae [project @ 1999-05-28 04:19:00 by jwe] jwe parents: 3131 diff changeset	430
20802 8bb38ba1bad6 eliminate return statements after calls to print_usage John W. Eaton <jwe@octave.org> parents: 20785 diff changeset	431 DASSL dae (state, deriv, tzero, func);
2928 295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe parents: diff changeset	432
20802 8bb38ba1bad6 eliminate return statements after calls to print_usage John W. Eaton <jwe@octave.org> parents: 20785 diff changeset	433 dae.set_options (dassl_opts);
5729 e065f7c18bdc [project @ 2006-04-03 19:03:30 by jwe] jwe parents: 5694 diff changeset	434
20802 8bb38ba1bad6 eliminate return statements after calls to print_usage John W. Eaton <jwe@octave.org> parents: 20785 diff changeset	435 Matrix output;
8bb38ba1bad6 eliminate return statements after calls to print_usage John W. Eaton <jwe@octave.org> parents: 20785 diff changeset	436 Matrix deriv_output;
3997 d4091aff6468 [project @ 2002-07-17 18:00:06 by jwe] jwe parents: 3991 diff changeset	437
20802 8bb38ba1bad6 eliminate return statements after calls to print_usage John W. Eaton <jwe@octave.org> parents: 20785 diff changeset	438 if (crit_times_set)
8bb38ba1bad6 eliminate return statements after calls to print_usage John W. Eaton <jwe@octave.org> parents: 20785 diff changeset	439 output = dae.integrate (out_times, deriv_output, crit_times);
8bb38ba1bad6 eliminate return statements after calls to print_usage John W. Eaton <jwe@octave.org> parents: 20785 diff changeset	440 else
8bb38ba1bad6 eliminate return statements after calls to print_usage John W. Eaton <jwe@octave.org> parents: 20785 diff changeset	441 output = dae.integrate (out_times, deriv_output);
8bb38ba1bad6 eliminate return statements after calls to print_usage John W. Eaton <jwe@octave.org> parents: 20785 diff changeset	442
8bb38ba1bad6 eliminate return statements after calls to print_usage John W. Eaton <jwe@octave.org> parents: 20785 diff changeset	443 if (fcn_name.length ())
8bb38ba1bad6 eliminate return statements after calls to print_usage John W. Eaton <jwe@octave.org> parents: 20785 diff changeset	444 clear_function (fcn_name);
8bb38ba1bad6 eliminate return statements after calls to print_usage John W. Eaton <jwe@octave.org> parents: 20785 diff changeset	445 if (jac_name.length ())
8bb38ba1bad6 eliminate return statements after calls to print_usage John W. Eaton <jwe@octave.org> parents: 20785 diff changeset	446 clear_function (jac_name);
3997 d4091aff6468 [project @ 2002-07-17 18:00:06 by jwe] jwe parents: 3991 diff changeset	447
20802 8bb38ba1bad6 eliminate return statements after calls to print_usage John W. Eaton <jwe@octave.org> parents: 20785 diff changeset	448 std::string msg = dae.error_message ();
8bb38ba1bad6 eliminate return statements after calls to print_usage John W. Eaton <jwe@octave.org> parents: 20785 diff changeset	449
8bb38ba1bad6 eliminate return statements after calls to print_usage John W. Eaton <jwe@octave.org> parents: 20785 diff changeset	450 if (dae.integration_ok ())
8bb38ba1bad6 eliminate return statements after calls to print_usage John W. Eaton <jwe@octave.org> parents: 20785 diff changeset	451 {
20892 c07bee629973 2015 Code Sprint: use ovl (). Rik <rik@octave.org> parents: 20853 diff changeset	452 retval(0) = output;
20802 8bb38ba1bad6 eliminate return statements after calls to print_usage John W. Eaton <jwe@octave.org> parents: 20785 diff changeset	453 retval(1) = deriv_output;
2928 295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe parents: diff changeset	454 }
3243 dd00769643ae [project @ 1999-05-28 04:19:00 by jwe] jwe parents: 3131 diff changeset	455 else
20802 8bb38ba1bad6 eliminate return statements after calls to print_usage John W. Eaton <jwe@octave.org> parents: 20785 diff changeset	456 {
8bb38ba1bad6 eliminate return statements after calls to print_usage John W. Eaton <jwe@octave.org> parents: 20785 diff changeset	457 if (nargout < 3)
8bb38ba1bad6 eliminate return statements after calls to print_usage John W. Eaton <jwe@octave.org> parents: 20785 diff changeset	458 error ("dassl: %s", msg.c_str ());
20892 c07bee629973 2015 Code Sprint: use ovl (). Rik <rik@octave.org> parents: 20853 diff changeset	459
c07bee629973 2015 Code Sprint: use ovl (). Rik <rik@octave.org> parents: 20853 diff changeset	460 retval(0) = Matrix ();
c07bee629973 2015 Code Sprint: use ovl (). Rik <rik@octave.org> parents: 20853 diff changeset	461 retval(1) = Matrix ();
20802 8bb38ba1bad6 eliminate return statements after calls to print_usage John W. Eaton <jwe@octave.org> parents: 20785 diff changeset	462 }
3243 dd00769643ae [project @ 1999-05-28 04:19:00 by jwe] jwe parents: 3131 diff changeset	463
20892 c07bee629973 2015 Code Sprint: use ovl (). Rik <rik@octave.org> parents: 20853 diff changeset	464 retval(2) = static_cast<double> (dae.integration_state ());
c07bee629973 2015 Code Sprint: use ovl (). Rik <rik@octave.org> parents: 20853 diff changeset	465 retval(3) = msg;
c07bee629973 2015 Code Sprint: use ovl (). Rik <rik@octave.org> parents: 20853 diff changeset	466
2928 295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe parents: diff changeset	467 return retval;
295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe parents: diff changeset	468 }
295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe parents: diff changeset	469
295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe parents: diff changeset	470 /*
14501 60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions. Rik <octave@nomad.inbox5.com> parents: 14138 diff changeset	471 ## dassl-1.m
60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions. Rik <octave@nomad.inbox5.com> parents: 14138 diff changeset	472 ##
60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions. Rik <octave@nomad.inbox5.com> parents: 14138 diff changeset	473 ## Test dassl() function
60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions. Rik <octave@nomad.inbox5.com> parents: 14138 diff changeset	474 ##
60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions. Rik <octave@nomad.inbox5.com> parents: 14138 diff changeset	475 ## Author: David Billinghurst (David.Billinghurst@riotinto.com.au)
60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions. Rik <octave@nomad.inbox5.com> parents: 14138 diff changeset	476 ## Comalco Research and Technology
60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions. Rik <octave@nomad.inbox5.com> parents: 14138 diff changeset	477 ## 20 May 1998
60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions. Rik <octave@nomad.inbox5.com> parents: 14138 diff changeset	478 ##
60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions. Rik <octave@nomad.inbox5.com> parents: 14138 diff changeset	479 ## Problem
60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions. Rik <octave@nomad.inbox5.com> parents: 14138 diff changeset	480 ##
60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions. Rik <octave@nomad.inbox5.com> parents: 14138 diff changeset	481 ## y1' = -y2, y1(0) = 1
60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions. Rik <octave@nomad.inbox5.com> parents: 14138 diff changeset	482 ## y2' = y1, y2(0) = 0
60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions. Rik <octave@nomad.inbox5.com> parents: 14138 diff changeset	483 ##
60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions. Rik <octave@nomad.inbox5.com> parents: 14138 diff changeset	484 ## Solution
60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions. Rik <octave@nomad.inbox5.com> parents: 14138 diff changeset	485 ##
60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions. Rik <octave@nomad.inbox5.com> parents: 14138 diff changeset	486 ## y1(t) = cos(t)
60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions. Rik <octave@nomad.inbox5.com> parents: 14138 diff changeset	487 ## y2(t) = sin(t)
60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions. Rik <octave@nomad.inbox5.com> parents: 14138 diff changeset	488 ##
14085 4e8f23ccadce test: Use internal prefix "__" for %!functions to avoid polluting workspace Rik <octave@nomad.inbox5.com> parents: 13915 diff changeset	489 %!function res = __f (x, xdot, t)
7562 c827f5673321 move tests to individual source files John W. Eaton <jwe@octave.org> parents: 7017 diff changeset	490 %! res = [xdot(1)+x(2); xdot(2)-x(1)];
14085 4e8f23ccadce test: Use internal prefix "__" for %!functions to avoid polluting workspace Rik <octave@nomad.inbox5.com> parents: 13915 diff changeset	491 %!endfunction
4e8f23ccadce test: Use internal prefix "__" for %!functions to avoid polluting workspace Rik <octave@nomad.inbox5.com> parents: 13915 diff changeset	492
7562 c827f5673321 move tests to individual source files John W. Eaton <jwe@octave.org> parents: 7017 diff changeset	493 %!test
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	494 %!
7562 c827f5673321 move tests to individual source files John W. Eaton <jwe@octave.org> parents: 7017 diff changeset	495 %! x0 = [1; 0];
c827f5673321 move tests to individual source files John W. Eaton <jwe@octave.org> parents: 7017 diff changeset	496 %! xdot0 = [0; 1];
c827f5673321 move tests to individual source files John W. Eaton <jwe@octave.org> parents: 7017 diff changeset	497 %! t = (0:1:10)';
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	498 %!
7562 c827f5673321 move tests to individual source files John W. Eaton <jwe@octave.org> parents: 7017 diff changeset	499 %! tol = 100 * dassl_options ("relative tolerance");
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	500 %!
14085 4e8f23ccadce test: Use internal prefix "__" for %!functions to avoid polluting workspace Rik <octave@nomad.inbox5.com> parents: 13915 diff changeset	501 %! [x, xdot] = dassl ("__f", x0, xdot0, t);
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	502 %!
7562 c827f5673321 move tests to individual source files John W. Eaton <jwe@octave.org> parents: 7017 diff changeset	503 %! y = [cos(t), sin(t)];
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	504 %!
14501 60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions. Rik <octave@nomad.inbox5.com> parents: 14138 diff changeset	505 %! assert (x, y, tol);
7562 c827f5673321 move tests to individual source files John W. Eaton <jwe@octave.org> parents: 7017 diff changeset	506
14501 60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions. Rik <octave@nomad.inbox5.com> parents: 14138 diff changeset	507 ## dassl-2.m
60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions. Rik <octave@nomad.inbox5.com> parents: 14138 diff changeset	508 ##
60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions. Rik <octave@nomad.inbox5.com> parents: 14138 diff changeset	509 ## Test dassl() function
60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions. Rik <octave@nomad.inbox5.com> parents: 14138 diff changeset	510 ##
60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions. Rik <octave@nomad.inbox5.com> parents: 14138 diff changeset	511 ## Author: David Billinghurst (David.Billinghurst@riotinto.com.au)
60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions. Rik <octave@nomad.inbox5.com> parents: 14138 diff changeset	512 ## Comalco Research and Technology
60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions. Rik <octave@nomad.inbox5.com> parents: 14138 diff changeset	513 ## 20 May 1998
60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions. Rik <octave@nomad.inbox5.com> parents: 14138 diff changeset	514 ##
60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions. Rik <octave@nomad.inbox5.com> parents: 14138 diff changeset	515 ## Based on SLATEC quick check for DASSL by Linda Petzold
60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions. Rik <octave@nomad.inbox5.com> parents: 14138 diff changeset	516 ##
60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions. Rik <octave@nomad.inbox5.com> parents: 14138 diff changeset	517 ## Problem
60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions. Rik <octave@nomad.inbox5.com> parents: 14138 diff changeset	518 ##
60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions. Rik <octave@nomad.inbox5.com> parents: 14138 diff changeset	519 ## x1' + 10*x1 = 0, x1(0) = 1
60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions. Rik <octave@nomad.inbox5.com> parents: 14138 diff changeset	520 ## x1 + x2 = 1, x2(0) = 0
60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions. Rik <octave@nomad.inbox5.com> parents: 14138 diff changeset	521 ##
60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions. Rik <octave@nomad.inbox5.com> parents: 14138 diff changeset	522 ##
60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions. Rik <octave@nomad.inbox5.com> parents: 14138 diff changeset	523 ## Solution
60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions. Rik <octave@nomad.inbox5.com> parents: 14138 diff changeset	524 ##
60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions. Rik <octave@nomad.inbox5.com> parents: 14138 diff changeset	525 ## x1(t) = exp(-10*t)
60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions. Rik <octave@nomad.inbox5.com> parents: 14138 diff changeset	526 ## x2(t) = 1 - x(1)
60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions. Rik <octave@nomad.inbox5.com> parents: 14138 diff changeset	527 ##
14085 4e8f23ccadce test: Use internal prefix "__" for %!functions to avoid polluting workspace Rik <octave@nomad.inbox5.com> parents: 13915 diff changeset	528 %!function res = __f (x, xdot, t)
7562 c827f5673321 move tests to individual source files John W. Eaton <jwe@octave.org> parents: 7017 diff changeset	529 %! res = [xdot(1)+10*x(1); x(1)+x(2)-1];
14085 4e8f23ccadce test: Use internal prefix "__" for %!functions to avoid polluting workspace Rik <octave@nomad.inbox5.com> parents: 13915 diff changeset	530 %!endfunction
4e8f23ccadce test: Use internal prefix "__" for %!functions to avoid polluting workspace Rik <octave@nomad.inbox5.com> parents: 13915 diff changeset	531
7562 c827f5673321 move tests to individual source files John W. Eaton <jwe@octave.org> parents: 7017 diff changeset	532 %!test
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	533 %!
7562 c827f5673321 move tests to individual source files John W. Eaton <jwe@octave.org> parents: 7017 diff changeset	534 %! x0 = [1; 0];
c827f5673321 move tests to individual source files John W. Eaton <jwe@octave.org> parents: 7017 diff changeset	535 %! xdot0 = [-10; 10];
c827f5673321 move tests to individual source files John W. Eaton <jwe@octave.org> parents: 7017 diff changeset	536 %! t = (0:0.2:1)';
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	537 %!
7562 c827f5673321 move tests to individual source files John W. Eaton <jwe@octave.org> parents: 7017 diff changeset	538 %! tol = 500 * dassl_options ("relative tolerance");
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	539 %!
14085 4e8f23ccadce test: Use internal prefix "__" for %!functions to avoid polluting workspace Rik <octave@nomad.inbox5.com> parents: 13915 diff changeset	540 %! [x, xdot] = dassl ("__f", x0, xdot0, t);
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	541 %!
7562 c827f5673321 move tests to individual source files John W. Eaton <jwe@octave.org> parents: 7017 diff changeset	542 %! y = [exp(-10t), 1-exp(-10t)];
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	543 %!
14501 60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions. Rik <octave@nomad.inbox5.com> parents: 14138 diff changeset	544 %! assert (x, y, tol);
7562 c827f5673321 move tests to individual source files John W. Eaton <jwe@octave.org> parents: 7017 diff changeset	545
c827f5673321 move tests to individual source files John W. Eaton <jwe@octave.org> parents: 7017 diff changeset	546 %!test
16780 781916090eb1 Restore dassl tolerance after running %! tests (bug #36137). Rik <rik@octave.org> parents: 15195 diff changeset	547 %! old_tol = dassl_options ("absolute tolerance");
7562 c827f5673321 move tests to individual source files John W. Eaton <jwe@octave.org> parents: 7017 diff changeset	548 %! dassl_options ("absolute tolerance", eps);
14501 60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions. Rik <octave@nomad.inbox5.com> parents: 14138 diff changeset	549 %! assert (dassl_options ("absolute tolerance") == eps);
16780 781916090eb1 Restore dassl tolerance after running %! tests (bug #36137). Rik <rik@octave.org> parents: 15195 diff changeset	550 %! ## Restore old value of tolerance
781916090eb1 Restore dassl tolerance after running %! tests (bug #36137). Rik <rik@octave.org> parents: 15195 diff changeset	551 %! dassl_options ("absolute tolerance", old_tol);
7562 c827f5673321 move tests to individual source files John W. Eaton <jwe@octave.org> parents: 7017 diff changeset	552
14501 60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions. Rik <octave@nomad.inbox5.com> parents: 14138 diff changeset	553 %!error dassl_options ("foo", 1, 2)
7562 c827f5673321 move tests to individual source files John W. Eaton <jwe@octave.org> parents: 7017 diff changeset	554 */

Mercurial > octave

annotate libinterp/corefcn/dassl.cc @ 20892:c07bee629973