octave: libinterp/corefcn/lsode.cc annotate

annotate libinterp/corefcn/lsode.cc @ 28817:aef839f40da2

Replace unwind_protect with more efficient constructs (bug #59192). * __eigs__.cc, daspk.cc, dasrt.cc, dassl.cc, lsode.cc, quad.cc: Replace unwind_protect frame and protect_var() call for variable "call_depth" with unwind_protect_var().

author	Rik <rik@octave.org>
date	Tue, 29 Sep 2020 06:59:13 -0700
parents	bd51beb6205e
children	8f67ad8b3103

rev	line source
27923 bd51beb6205e update formatting of copyright notices John W. Eaton <jwe@octave.org> parents: 27919 diff changeset	1 ////////////////////////////////////////////////////////////////////////
bd51beb6205e update formatting of copyright notices John W. Eaton <jwe@octave.org> parents: 27919 diff changeset	2 //
bd51beb6205e update formatting of copyright notices John W. Eaton <jwe@octave.org> parents: 27919 diff changeset	3 // Copyright (C) 1996-2020 The Octave Project Developers
bd51beb6205e update formatting of copyright notices John W. Eaton <jwe@octave.org> parents: 27919 diff changeset	4 //
bd51beb6205e update formatting of copyright notices John W. Eaton <jwe@octave.org> parents: 27919 diff changeset	5 // See the file COPYRIGHT.md in the top-level directory of this
bd51beb6205e update formatting of copyright notices John W. Eaton <jwe@octave.org> parents: 27919 diff changeset	6 // distribution or <https://octave.org/copyright/>.
bd51beb6205e update formatting of copyright notices John W. Eaton <jwe@octave.org> parents: 27919 diff changeset	7 //
bd51beb6205e update formatting of copyright notices John W. Eaton <jwe@octave.org> parents: 27919 diff changeset	8 // This file is part of Octave.
bd51beb6205e update formatting of copyright notices John W. Eaton <jwe@octave.org> parents: 27919 diff changeset	9 //
bd51beb6205e update formatting of copyright notices John W. Eaton <jwe@octave.org> parents: 27919 diff changeset	10 // Octave is free software: you can redistribute it and/or modify it
bd51beb6205e update formatting of copyright notices John W. Eaton <jwe@octave.org> parents: 27919 diff changeset	11 // under the terms of the GNU General Public License as published by
bd51beb6205e update formatting of copyright notices John W. Eaton <jwe@octave.org> parents: 27919 diff changeset	12 // the Free Software Foundation, either version 3 of the License, or
bd51beb6205e update formatting of copyright notices John W. Eaton <jwe@octave.org> parents: 27919 diff changeset	13 // (at your option) any later version.
bd51beb6205e update formatting of copyright notices John W. Eaton <jwe@octave.org> parents: 27919 diff changeset	14 //
bd51beb6205e update formatting of copyright notices John W. Eaton <jwe@octave.org> parents: 27919 diff changeset	15 // Octave is distributed in the hope that it will be useful, but
bd51beb6205e update formatting of copyright notices John W. Eaton <jwe@octave.org> parents: 27919 diff changeset	16 // WITHOUT ANY WARRANTY; without even the implied warranty of
bd51beb6205e update formatting of copyright notices John W. Eaton <jwe@octave.org> parents: 27919 diff changeset	17 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
bd51beb6205e update formatting of copyright notices John W. Eaton <jwe@octave.org> parents: 27919 diff changeset	18 // GNU General Public License for more details.
bd51beb6205e update formatting of copyright notices John W. Eaton <jwe@octave.org> parents: 27919 diff changeset	19 //
bd51beb6205e update formatting of copyright notices John W. Eaton <jwe@octave.org> parents: 27919 diff changeset	20 // You should have received a copy of the GNU General Public License
bd51beb6205e update formatting of copyright notices John W. Eaton <jwe@octave.org> parents: 27919 diff changeset	21 // along with Octave; see the file COPYING. If not, see
bd51beb6205e update formatting of copyright notices John W. Eaton <jwe@octave.org> parents: 27919 diff changeset	22 // <https://www.gnu.org/licenses/>.
bd51beb6205e update formatting of copyright notices John W. Eaton <jwe@octave.org> parents: 27919 diff changeset	23 //
bd51beb6205e update formatting of copyright notices John W. Eaton <jwe@octave.org> parents: 27919 diff changeset	24 ////////////////////////////////////////////////////////////////////////
2928 295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe parents: diff changeset	25
21724 aba2e6293dd8 use "#if ..." consistently instead of "#ifdef" and "#ifndef" John W. Eaton <jwe@octave.org> parents: 21301 diff changeset	26 #if defined (HAVE_CONFIG_H)
21301 40de9f8f23a6 Use '#include "config.h"' rather than <config.h>. Rik <rik@octave.org> parents: 21200 diff changeset	27 # include "config.h"
2928 295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe parents: diff changeset	28 #endif
295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe parents: diff changeset	29
26864 041caa61ed34 use get_function_handle instead of extract_function John W. Eaton <jwe@octave.org> parents: 26376 diff changeset	30 #include <list>
2928 295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe parents: diff changeset	31 #include <string>
295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe parents: diff changeset	32
295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe parents: diff changeset	33 #include "LSODE.h"
295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe parents: diff changeset	34 #include "lo-mappers.h"
295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe parents: diff changeset	35
15039 e753177cde93 maint: Move non-dynamically linked functions from DLD-FUNCTIONS/ to corefcn/ directory Rik <rik@octave.org> parents: 14854 diff changeset	36 #include "defun.h"
2928 295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe parents: diff changeset	37 #include "error.h"
21100 e39e05d90788 Switch gripe_XXX to either err_XXX or warn_XXX naming scheme. Rik <rik@octave.org> parents: 20990 diff changeset	38 #include "errwarn.h"
26864 041caa61ed34 use get_function_handle instead of extract_function John W. Eaton <jwe@octave.org> parents: 26376 diff changeset	39 #include "interpreter-private.h"
20940 48b2ad5ee801 maint: Rename oct-obj.[cc\|h] to ovl.[cc\|h] for clarity. Rik <rik@octave.org> parents: 20909 diff changeset	40 #include "ovl.h"
2968 e330cb788508 [project @ 1997-05-15 17:40:29 by jwe] jwe parents: 2928 diff changeset	41 #include "ov-fcn.h"
5729 e065f7c18bdc [project @ 2006-04-03 19:03:30 by jwe] jwe parents: 5694 diff changeset	42 #include "ov-cell.h"
2928 295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe parents: diff changeset	43 #include "pager.h"
23473 55916f99b8b6 prefer feval over do_multi_index_op John W. Eaton <jwe@octave.org> parents: 23220 diff changeset	44 #include "parse.h"
3952 945e8c160191 [project @ 2002-05-23 17:18:12 by jwe] jwe parents: 3920 diff changeset	45 #include "pr-output.h"
3243 dd00769643ae [project @ 1999-05-28 04:19:00 by jwe] jwe parents: 3131 diff changeset	46 #include "unwind-prot.h"
2928 295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe parents: diff changeset	47 #include "utils.h"
295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe parents: diff changeset	48 #include "variables.h"
295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe parents: diff changeset	49
3998 f6df65db67f9 [project @ 2002-07-24 18:10:39 by jwe] jwe parents: 3997 diff changeset	50 #include "LSODE-opts.cc"
f6df65db67f9 [project @ 2002-07-24 18:10:39 by jwe] jwe parents: 3997 diff changeset	51
2928 295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe parents: diff changeset	52 // Global pointer for user defined function required by lsode.
26864 041caa61ed34 use get_function_handle instead of extract_function John W. Eaton <jwe@octave.org> parents: 26376 diff changeset	53 static octave_value lsode_fcn;
2928 295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe parents: diff changeset	54
295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe parents: diff changeset	55 // Global pointer for optional user defined jacobian function used by lsode.
26864 041caa61ed34 use get_function_handle instead of extract_function John W. Eaton <jwe@octave.org> parents: 26376 diff changeset	56 static octave_value lsode_jac;
2928 295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe parents: diff changeset	57
4140 303b28a7a7e4 [project @ 2002-11-01 02:53:13 by jwe] jwe parents: 4122 diff changeset	58 // 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	59 static bool warned_fcn_imaginary = false;
303b28a7a7e4 [project @ 2002-11-01 02:53:13 by jwe] jwe parents: 4122 diff changeset	60 static bool warned_jac_imaginary = false;
303b28a7a7e4 [project @ 2002-11-01 02:53:13 by jwe] jwe parents: 4122 diff changeset	61
3243 dd00769643ae [project @ 1999-05-28 04:19:00 by jwe] jwe parents: 3131 diff changeset	62 // Is this a recursive call?
dd00769643ae [project @ 1999-05-28 04:19:00 by jwe] jwe parents: 3131 diff changeset	63 static int call_depth = 0;
dd00769643ae [project @ 1999-05-28 04:19:00 by jwe] jwe parents: 3131 diff changeset	64
2928 295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe parents: diff changeset	65 ColumnVector
295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe parents: diff changeset	66 lsode_user_function (const ColumnVector& x, double t)
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 ColumnVector retval;
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_list args;
295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe parents: diff changeset	71 args(1) = t;
4628 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
26864 041caa61ed34 use get_function_handle instead of extract_function John W. Eaton <jwe@octave.org> parents: 26376 diff changeset	74 if (lsode_fcn.is_defined ())
2928 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;
2928 295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe parents: diff changeset	77
20725 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 {
23473 55916f99b8b6 prefer feval over do_multi_index_op John W. Eaton <jwe@octave.org> parents: 23220 diff changeset	80 tmp = octave::feval (lsode_fcn, args, 1);
20725 7164a69472dd eliminate more uses of error state John W. Eaton <jwe@octave.org> parents: 20711 diff changeset	81 }
22327 d0562b3159c7 move more classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22323 diff changeset	82 catch (octave::execution_exception& e)
10154 40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 10066 diff changeset	83 {
21100 e39e05d90788 Switch gripe_XXX to either err_XXX or warn_XXX naming scheme. Rik <rik@octave.org> parents: 20990 diff changeset	84 err_user_supplied_eval (e, "lsode");
10154 40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 10066 diff changeset	85 }
2928 295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe parents: diff changeset	86
21885 0806871e3e1e maint: Prefer is_empty() rather than "length () == 0". Rik <rik@octave.org> parents: 21743 diff changeset	87 if (tmp.empty () \|\| ! tmp(0).is_defined ())
21118 3ac9f47fb04b Invert pattern if/code/else/err_XXX to if !/err_XXX/code. Rik <rik@octave.org> parents: 21100 diff changeset	88 err_user_supplied_eval ("lsode");
3ac9f47fb04b Invert pattern if/code/else/err_XXX to if !/err_XXX/code. Rik <rik@octave.org> parents: 21100 diff changeset	89
23581 c3075ae020e1 maint: Deprecate is_complex_type and replace with iscomplex. Rik <rik@octave.org> parents: 23577 diff changeset	90 if (! warned_fcn_imaginary && tmp(0).iscomplex ())
10154 40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 10066 diff changeset	91 {
21118 3ac9f47fb04b Invert pattern if/code/else/err_XXX to if !/err_XXX/code. Rik <rik@octave.org> parents: 21100 diff changeset	92 warning ("lsode: ignoring imaginary part returned from user-supplied function");
3ac9f47fb04b Invert pattern if/code/else/err_XXX to if !/err_XXX/code. Rik <rik@octave.org> parents: 21100 diff changeset	93 warned_fcn_imaginary = true;
3ac9f47fb04b Invert pattern if/code/else/err_XXX to if !/err_XXX/code. Rik <rik@octave.org> parents: 21100 diff changeset	94 }
4140 303b28a7a7e4 [project @ 2002-11-01 02:53:13 by jwe] jwe parents: 4122 diff changeset	95
21118 3ac9f47fb04b Invert pattern if/code/else/err_XXX to if !/err_XXX/code. Rik <rik@octave.org> parents: 21100 diff changeset	96 retval = tmp(0).xvector_value ("lsode: expecting user supplied function to return numeric vector");
2928 295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe parents: diff changeset	97
23577 80c42f4cca13 maint: Deprecate is_empty and replace with isempty. Rik <rik@octave.org> parents: 23576 diff changeset	98 if (retval.isempty ())
21100 e39e05d90788 Switch gripe_XXX to either err_XXX or warn_XXX naming scheme. Rik <rik@octave.org> parents: 20990 diff changeset	99 err_user_supplied_eval ("lsode");
2928 295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe parents: diff changeset	100 }
295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe parents: diff changeset	101
295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe parents: diff changeset	102 return retval;
295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe parents: diff changeset	103 }
295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe parents: diff changeset	104
295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe parents: diff changeset	105 Matrix
295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe parents: diff changeset	106 lsode_user_jacobian (const ColumnVector& x, double t)
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 Matrix 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 octave_value_list args;
295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe parents: diff changeset	111 args(1) = t;
4628 c0121a3b9cbe [project @ 2003-11-17 20:19:07 by jwe] jwe parents: 4140 diff changeset	112 args(0) = x;
2928 295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe parents: diff changeset	113
26864 041caa61ed34 use get_function_handle instead of extract_function John W. Eaton <jwe@octave.org> parents: 26376 diff changeset	114 if (lsode_jac.is_defined ())
2928 295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe parents: diff changeset	115 {
20725 7164a69472dd eliminate more uses of error state John W. Eaton <jwe@octave.org> parents: 20711 diff changeset	116 octave_value_list tmp;
2928 295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe parents: diff changeset	117
20725 7164a69472dd eliminate more uses of error state John W. Eaton <jwe@octave.org> parents: 20711 diff changeset	118 try
7164a69472dd eliminate more uses of error state John W. Eaton <jwe@octave.org> parents: 20711 diff changeset	119 {
23473 55916f99b8b6 prefer feval over do_multi_index_op John W. Eaton <jwe@octave.org> parents: 23220 diff changeset	120 tmp = octave::feval (lsode_jac, args, 1);
20725 7164a69472dd eliminate more uses of error state John W. Eaton <jwe@octave.org> parents: 20711 diff changeset	121 }
22327 d0562b3159c7 move more classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22323 diff changeset	122 catch (octave::execution_exception& e)
10154 40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 10066 diff changeset	123 {
21100 e39e05d90788 Switch gripe_XXX to either err_XXX or warn_XXX naming scheme. Rik <rik@octave.org> parents: 20990 diff changeset	124 err_user_supplied_eval (e, "lsode");
10154 40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 10066 diff changeset	125 }
2928 295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe parents: diff changeset	126
21885 0806871e3e1e maint: Prefer is_empty() rather than "length () == 0". Rik <rik@octave.org> parents: 21743 diff changeset	127 if (tmp.empty () \|\| ! tmp(0).is_defined ())
21118 3ac9f47fb04b Invert pattern if/code/else/err_XXX to if !/err_XXX/code. Rik <rik@octave.org> parents: 21100 diff changeset	128 err_user_supplied_eval ("lsode");
3ac9f47fb04b Invert pattern if/code/else/err_XXX to if !/err_XXX/code. Rik <rik@octave.org> parents: 21100 diff changeset	129
23581 c3075ae020e1 maint: Deprecate is_complex_type and replace with iscomplex. Rik <rik@octave.org> parents: 23577 diff changeset	130 if (! warned_jac_imaginary && tmp(0).iscomplex ())
10154 40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 10066 diff changeset	131 {
21118 3ac9f47fb04b Invert pattern if/code/else/err_XXX to if !/err_XXX/code. Rik <rik@octave.org> parents: 21100 diff changeset	132 warning ("lsode: ignoring imaginary part returned from user-supplied jacobian function");
3ac9f47fb04b Invert pattern if/code/else/err_XXX to if !/err_XXX/code. Rik <rik@octave.org> parents: 21100 diff changeset	133 warned_jac_imaginary = true;
3ac9f47fb04b Invert pattern if/code/else/err_XXX to if !/err_XXX/code. Rik <rik@octave.org> parents: 21100 diff changeset	134 }
4140 303b28a7a7e4 [project @ 2002-11-01 02:53:13 by jwe] jwe parents: 4122 diff changeset	135
21118 3ac9f47fb04b Invert pattern if/code/else/err_XXX to if !/err_XXX/code. Rik <rik@octave.org> parents: 21100 diff changeset	136 retval = tmp(0).xmatrix_value ("lsode: expecting user supplied jacobian function to return numeric array");
2928 295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe parents: diff changeset	137
23577 80c42f4cca13 maint: Deprecate is_empty and replace with isempty. Rik <rik@octave.org> parents: 23576 diff changeset	138 if (retval.isempty ())
21100 e39e05d90788 Switch gripe_XXX to either err_XXX or warn_XXX naming scheme. Rik <rik@octave.org> parents: 20990 diff changeset	139 err_user_supplied_eval ("lsode");
2928 295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe parents: diff changeset	140 }
295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe parents: diff changeset	141
295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe parents: diff changeset	142 return retval;
295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe parents: diff changeset	143 }
295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe parents: diff changeset	144
23699 b29904962d2d deprecate some global functions that access the symbol table John W. Eaton <jwe@octave.org> parents: 23581 diff changeset	145 DEFMETHOD (lsode, interp, args, nargout,
b29904962d2d deprecate some global functions that access the symbol table John W. Eaton <jwe@octave.org> parents: 23581 diff changeset	146 doc: /* -- texinfo --
21966 112b20240c87 move docstrings in C++ files out of C strings and into comments John W. Eaton <jwe@octave.org> parents: 21885 diff changeset	147 @deftypefn {} {[@var{x}, @var{istate}, @var{msg}] =} lsode (@var{fcn}, @var{x_0}, @var{t})
112b20240c87 move docstrings in C++ files out of C strings and into comments John W. Eaton <jwe@octave.org> parents: 21885 diff changeset	148 @deftypefnx {} {[@var{x}, @var{istate}, @var{msg}] =} lsode (@var{fcn}, @var{x_0}, @var{t}, @var{t_crit})
112b20240c87 move docstrings in C++ files out of C strings and into comments John W. Eaton <jwe@octave.org> parents: 21885 diff changeset	149 Ordinary Differential Equation (ODE) solver.
112b20240c87 move docstrings in C++ files out of C strings and into comments John W. Eaton <jwe@octave.org> parents: 21885 diff changeset	150
112b20240c87 move docstrings in C++ files out of C strings and into comments John W. Eaton <jwe@octave.org> parents: 21885 diff changeset	151 The set of differential equations to solve is
112b20240c87 move docstrings in C++ files out of C strings and into comments John W. Eaton <jwe@octave.org> parents: 21885 diff changeset	152 @tex
112b20240c87 move docstrings in C++ files out of C strings and into comments John W. Eaton <jwe@octave.org> parents: 21885 diff changeset	153 $$ {dx \over dt} = f (x, t) $$
112b20240c87 move docstrings in C++ files out of C strings and into comments John W. Eaton <jwe@octave.org> parents: 21885 diff changeset	154 with
112b20240c87 move docstrings in C++ files out of C strings and into comments John W. Eaton <jwe@octave.org> parents: 21885 diff changeset	155 $$ x(t_0) = x_0 $$
112b20240c87 move docstrings in C++ files out of C strings and into comments John W. Eaton <jwe@octave.org> parents: 21885 diff changeset	156 @end tex
112b20240c87 move docstrings in C++ files out of C strings and into comments John W. Eaton <jwe@octave.org> parents: 21885 diff changeset	157 @ifnottex
112b20240c87 move docstrings in C++ files out of C strings and into comments John W. Eaton <jwe@octave.org> parents: 21885 diff changeset	158
112b20240c87 move docstrings in C++ files out of C strings and into comments John W. Eaton <jwe@octave.org> parents: 21885 diff changeset	159 @example
112b20240c87 move docstrings in C++ files out of C strings and into comments John W. Eaton <jwe@octave.org> parents: 21885 diff changeset	160 @group
112b20240c87 move docstrings in C++ files out of C strings and into comments John W. Eaton <jwe@octave.org> parents: 21885 diff changeset	161 dx
112b20240c87 move docstrings in C++ files out of C strings and into comments John W. Eaton <jwe@octave.org> parents: 21885 diff changeset	162 -- = f (x, t)
112b20240c87 move docstrings in C++ files out of C strings and into comments John W. Eaton <jwe@octave.org> parents: 21885 diff changeset	163 dt
112b20240c87 move docstrings in C++ files out of C strings and into comments John W. Eaton <jwe@octave.org> parents: 21885 diff changeset	164 @end group
112b20240c87 move docstrings in C++ files out of C strings and into comments John W. Eaton <jwe@octave.org> parents: 21885 diff changeset	165 @end example
112b20240c87 move docstrings in C++ files out of C strings and into comments John W. Eaton <jwe@octave.org> parents: 21885 diff changeset	166
112b20240c87 move docstrings in C++ files out of C strings and into comments John W. Eaton <jwe@octave.org> parents: 21885 diff changeset	167 @noindent
112b20240c87 move docstrings in C++ files out of C strings and into comments John W. Eaton <jwe@octave.org> parents: 21885 diff changeset	168 with
112b20240c87 move docstrings in C++ files out of C strings and into comments John W. Eaton <jwe@octave.org> parents: 21885 diff changeset	169
112b20240c87 move docstrings in C++ files out of C strings and into comments John W. Eaton <jwe@octave.org> parents: 21885 diff changeset	170 @example
112b20240c87 move docstrings in C++ files out of C strings and into comments John W. Eaton <jwe@octave.org> parents: 21885 diff changeset	171 x(t_0) = x_0
112b20240c87 move docstrings in C++ files out of C strings and into comments John W. Eaton <jwe@octave.org> parents: 21885 diff changeset	172 @end example
112b20240c87 move docstrings in C++ files out of C strings and into comments John W. Eaton <jwe@octave.org> parents: 21885 diff changeset	173
112b20240c87 move docstrings in C++ files out of C strings and into comments John W. Eaton <jwe@octave.org> parents: 21885 diff changeset	174 @end ifnottex
112b20240c87 move docstrings in C++ files out of C strings and into comments John W. Eaton <jwe@octave.org> parents: 21885 diff changeset	175 The solution is returned in the matrix @var{x}, with each row
112b20240c87 move docstrings in C++ files out of C strings and into comments John W. Eaton <jwe@octave.org> parents: 21885 diff changeset	176 corresponding to an element of the vector @var{t}. The first element
112b20240c87 move docstrings in C++ files out of C strings and into comments John W. Eaton <jwe@octave.org> parents: 21885 diff changeset	177 of @var{t} should be @math{t_0} and should correspond to the initial
112b20240c87 move docstrings in C++ files out of C strings and into comments John W. Eaton <jwe@octave.org> parents: 21885 diff changeset	178 state of the system @var{x_0}, so that the first row of the output
112b20240c87 move docstrings in C++ files out of C strings and into comments John W. Eaton <jwe@octave.org> parents: 21885 diff changeset	179 is @var{x_0}.
112b20240c87 move docstrings in C++ files out of C strings and into comments John W. Eaton <jwe@octave.org> parents: 21885 diff changeset	180
112b20240c87 move docstrings in C++ files out of C strings and into comments John W. Eaton <jwe@octave.org> parents: 21885 diff changeset	181 The first argument, @var{fcn}, is a string, inline, or function handle
112b20240c87 move docstrings in C++ files out of C strings and into comments John W. Eaton <jwe@octave.org> parents: 21885 diff changeset	182 that names the function @math{f} to call to compute the vector of right
112b20240c87 move docstrings in C++ files out of C strings and into comments John W. Eaton <jwe@octave.org> parents: 21885 diff changeset	183 hand sides for the set of equations. The function must have the form
112b20240c87 move docstrings in C++ files out of C strings and into comments John W. Eaton <jwe@octave.org> parents: 21885 diff changeset	184
112b20240c87 move docstrings in C++ files out of C strings and into comments John W. Eaton <jwe@octave.org> parents: 21885 diff changeset	185 @example
112b20240c87 move docstrings in C++ files out of C strings and into comments John W. Eaton <jwe@octave.org> parents: 21885 diff changeset	186 @var{xdot} = f (@var{x}, @var{t})
112b20240c87 move docstrings in C++ files out of C strings and into comments John W. Eaton <jwe@octave.org> parents: 21885 diff changeset	187 @end example
112b20240c87 move docstrings in C++ files out of C strings and into comments John W. Eaton <jwe@octave.org> parents: 21885 diff changeset	188
112b20240c87 move docstrings in C++ files out of C strings and into comments John W. Eaton <jwe@octave.org> parents: 21885 diff changeset	189 @noindent
112b20240c87 move docstrings in C++ files out of C strings and into comments John W. Eaton <jwe@octave.org> parents: 21885 diff changeset	190 in which @var{xdot} and @var{x} are vectors and @var{t} is a scalar.
112b20240c87 move docstrings in C++ files out of C strings and into comments John W. Eaton <jwe@octave.org> parents: 21885 diff changeset	191
112b20240c87 move docstrings in C++ files out of C strings and into comments John W. Eaton <jwe@octave.org> parents: 21885 diff changeset	192 If @var{fcn} is a two-element string array or a two-element cell array
112b20240c87 move docstrings in C++ files out of C strings and into comments John W. Eaton <jwe@octave.org> parents: 21885 diff changeset	193 of strings, inline functions, or function handles, the first element names
112b20240c87 move docstrings in C++ files out of C strings and into comments John W. Eaton <jwe@octave.org> parents: 21885 diff changeset	194 the function @math{f} described above, and the second element names a
112b20240c87 move docstrings in C++ files out of C strings and into comments John W. Eaton <jwe@octave.org> parents: 21885 diff changeset	195 function to compute the Jacobian of @math{f}. The Jacobian function
112b20240c87 move docstrings in C++ files out of C strings and into comments John W. Eaton <jwe@octave.org> parents: 21885 diff changeset	196 must have the form
112b20240c87 move docstrings in C++ files out of C strings and into comments John W. Eaton <jwe@octave.org> parents: 21885 diff changeset	197
112b20240c87 move docstrings in C++ files out of C strings and into comments John W. Eaton <jwe@octave.org> parents: 21885 diff changeset	198 @example
112b20240c87 move docstrings in C++ files out of C strings and into comments John W. Eaton <jwe@octave.org> parents: 21885 diff changeset	199 @var{jac} = j (@var{x}, @var{t})
112b20240c87 move docstrings in C++ files out of C strings and into comments John W. Eaton <jwe@octave.org> parents: 21885 diff changeset	200 @end example
112b20240c87 move docstrings in C++ files out of C strings and into comments John W. Eaton <jwe@octave.org> parents: 21885 diff changeset	201
112b20240c87 move docstrings in C++ files out of C strings and into comments John W. Eaton <jwe@octave.org> parents: 21885 diff changeset	202 @noindent
112b20240c87 move docstrings in C++ files out of C strings and into comments John W. Eaton <jwe@octave.org> parents: 21885 diff changeset	203 in which @var{jac} is the matrix of partial derivatives
112b20240c87 move docstrings in C++ files out of C strings and into comments John W. Eaton <jwe@octave.org> parents: 21885 diff changeset	204 @tex
112b20240c87 move docstrings in C++ files out of C strings and into comments John W. Eaton <jwe@octave.org> parents: 21885 diff changeset	205 $$ J = {\partial f_i \over \partial x_j} = \left[\matrix{
112b20240c87 move docstrings in C++ files out of C strings and into comments John W. Eaton <jwe@octave.org> parents: 21885 diff changeset	206 {\partial f_1 \over \partial x_1}
112b20240c87 move docstrings in C++ files out of C strings and into comments John W. Eaton <jwe@octave.org> parents: 21885 diff changeset	207 & {\partial f_1 \over \partial x_2}
112b20240c87 move docstrings in C++ files out of C strings and into comments John W. Eaton <jwe@octave.org> parents: 21885 diff changeset	208 & \cdots
112b20240c87 move docstrings in C++ files out of C strings and into comments John W. Eaton <jwe@octave.org> parents: 21885 diff changeset	209 & {\partial f_1 \over \partial x_N} \cr
112b20240c87 move docstrings in C++ files out of C strings and into comments John W. Eaton <jwe@octave.org> parents: 21885 diff changeset	210 {\partial f_2 \over \partial x_1}
112b20240c87 move docstrings in C++ files out of C strings and into comments John W. Eaton <jwe@octave.org> parents: 21885 diff changeset	211 & {\partial f_2 \over \partial x_2}
112b20240c87 move docstrings in C++ files out of C strings and into comments John W. Eaton <jwe@octave.org> parents: 21885 diff changeset	212 & \cdots
112b20240c87 move docstrings in C++ files out of C strings and into comments John W. Eaton <jwe@octave.org> parents: 21885 diff changeset	213 & {\partial f_2 \over \partial x_N} \cr
112b20240c87 move docstrings in C++ files out of C strings and into comments John W. Eaton <jwe@octave.org> parents: 21885 diff changeset	214 \vdots & \vdots & \ddots & \vdots \cr
112b20240c87 move docstrings in C++ files out of C strings and into comments John W. Eaton <jwe@octave.org> parents: 21885 diff changeset	215 {\partial f_3 \over \partial x_1}
112b20240c87 move docstrings in C++ files out of C strings and into comments John W. Eaton <jwe@octave.org> parents: 21885 diff changeset	216 & {\partial f_3 \over \partial x_2}
112b20240c87 move docstrings in C++ files out of C strings and into comments John W. Eaton <jwe@octave.org> parents: 21885 diff changeset	217 & \cdots
112b20240c87 move docstrings in C++ files out of C strings and into comments John W. Eaton <jwe@octave.org> parents: 21885 diff changeset	218 & {\partial f_3 \over \partial x_N} \cr}\right]$$
112b20240c87 move docstrings in C++ files out of C strings and into comments John W. Eaton <jwe@octave.org> parents: 21885 diff changeset	219 @end tex
112b20240c87 move docstrings in C++ files out of C strings and into comments John W. Eaton <jwe@octave.org> parents: 21885 diff changeset	220 @ifnottex
112b20240c87 move docstrings in C++ files out of C strings and into comments John W. Eaton <jwe@octave.org> parents: 21885 diff changeset	221
112b20240c87 move docstrings in C++ files out of C strings and into comments John W. Eaton <jwe@octave.org> parents: 21885 diff changeset	222 @example
112b20240c87 move docstrings in C++ files out of C strings and into comments John W. Eaton <jwe@octave.org> parents: 21885 diff changeset	223 @group
112b20240c87 move docstrings in C++ files out of C strings and into comments John W. Eaton <jwe@octave.org> parents: 21885 diff changeset	224 \| df_1 df_1 df_1 \|
112b20240c87 move docstrings in C++ files out of C strings and into comments John W. Eaton <jwe@octave.org> parents: 21885 diff changeset	225 \| ---- ---- ... ---- \|
112b20240c87 move docstrings in C++ files out of C strings and into comments John W. Eaton <jwe@octave.org> parents: 21885 diff changeset	226 \| dx_1 dx_2 dx_N \|
112b20240c87 move docstrings in C++ files out of C strings and into comments John W. Eaton <jwe@octave.org> parents: 21885 diff changeset	227 \| \|
112b20240c87 move docstrings in C++ files out of C strings and into comments John W. Eaton <jwe@octave.org> parents: 21885 diff changeset	228 \| df_2 df_2 df_2 \|
112b20240c87 move docstrings in C++ files out of C strings and into comments John W. Eaton <jwe@octave.org> parents: 21885 diff changeset	229 \| ---- ---- ... ---- \|
112b20240c87 move docstrings in C++ files out of C strings and into comments John W. Eaton <jwe@octave.org> parents: 21885 diff changeset	230 df_i \| dx_1 dx_2 dx_N \|
112b20240c87 move docstrings in C++ files out of C strings and into comments John W. Eaton <jwe@octave.org> parents: 21885 diff changeset	231 jac = ---- = \| \|
112b20240c87 move docstrings in C++ files out of C strings and into comments John W. Eaton <jwe@octave.org> parents: 21885 diff changeset	232 dx_j \| . . . . \|
112b20240c87 move docstrings in C++ files out of C strings and into comments John W. Eaton <jwe@octave.org> parents: 21885 diff changeset	233 \| . . . . \|
112b20240c87 move docstrings in C++ files out of C strings and into comments John W. Eaton <jwe@octave.org> parents: 21885 diff changeset	234 \| . . . . \|
112b20240c87 move docstrings in C++ files out of C strings and into comments John W. Eaton <jwe@octave.org> parents: 21885 diff changeset	235 \| \|
112b20240c87 move docstrings in C++ files out of C strings and into comments John W. Eaton <jwe@octave.org> parents: 21885 diff changeset	236 \| df_N df_N df_N \|
112b20240c87 move docstrings in C++ files out of C strings and into comments John W. Eaton <jwe@octave.org> parents: 21885 diff changeset	237 \| ---- ---- ... ---- \|
112b20240c87 move docstrings in C++ files out of C strings and into comments John W. Eaton <jwe@octave.org> parents: 21885 diff changeset	238 \| dx_1 dx_2 dx_N \|
112b20240c87 move docstrings in C++ files out of C strings and into comments John W. Eaton <jwe@octave.org> parents: 21885 diff changeset	239 @end group
112b20240c87 move docstrings in C++ files out of C strings and into comments John W. Eaton <jwe@octave.org> parents: 21885 diff changeset	240 @end example
112b20240c87 move docstrings in C++ files out of C strings and into comments John W. Eaton <jwe@octave.org> parents: 21885 diff changeset	241
112b20240c87 move docstrings in C++ files out of C strings and into comments John W. Eaton <jwe@octave.org> parents: 21885 diff changeset	242 @end ifnottex
112b20240c87 move docstrings in C++ files out of C strings and into comments John W. Eaton <jwe@octave.org> parents: 21885 diff changeset	243
24412 6e1d3ad32ed1 doc: Fix documentation of third input to lsode() (bug #52664). Rik <rik@octave.org> parents: 23219 diff changeset	244 The second argument specifies the initial state of the system @math{x_0}. The
6e1d3ad32ed1 doc: Fix documentation of third input to lsode() (bug #52664). Rik <rik@octave.org> parents: 23219 diff changeset	245 third argument is a vector, @var{t}, specifying the time values for which a
6e1d3ad32ed1 doc: Fix documentation of third input to lsode() (bug #52664). Rik <rik@octave.org> parents: 23219 diff changeset	246 solution is sought.
21966 112b20240c87 move docstrings in C++ files out of C strings and into comments John W. Eaton <jwe@octave.org> parents: 21885 diff changeset	247
112b20240c87 move docstrings in C++ files out of C strings and into comments John W. Eaton <jwe@octave.org> parents: 21885 diff changeset	248 The fourth argument is optional, and may be used to specify a set of
112b20240c87 move docstrings in C++ files out of C strings and into comments John W. Eaton <jwe@octave.org> parents: 21885 diff changeset	249 times that the ODE solver should not integrate past. It is useful for
112b20240c87 move docstrings in C++ files out of C strings and into comments John W. Eaton <jwe@octave.org> parents: 21885 diff changeset	250 avoiding difficulties with singularities and points where there is a
112b20240c87 move docstrings in C++ files out of C strings and into comments John W. Eaton <jwe@octave.org> parents: 21885 diff changeset	251 discontinuity in the derivative.
112b20240c87 move docstrings in C++ files out of C strings and into comments John W. Eaton <jwe@octave.org> parents: 21885 diff changeset	252
112b20240c87 move docstrings in C++ files out of C strings and into comments John W. Eaton <jwe@octave.org> parents: 21885 diff changeset	253 After a successful computation, the value of @var{istate} will be 2
112b20240c87 move docstrings in C++ files out of C strings and into comments John W. Eaton <jwe@octave.org> parents: 21885 diff changeset	254 (consistent with the Fortran version of @sc{lsode}).
112b20240c87 move docstrings in C++ files out of C strings and into comments John W. Eaton <jwe@octave.org> parents: 21885 diff changeset	255
112b20240c87 move docstrings in C++ files out of C strings and into comments John W. Eaton <jwe@octave.org> parents: 21885 diff changeset	256 If the computation is not successful, @var{istate} will be something
112b20240c87 move docstrings in C++ files out of C strings and into comments John W. Eaton <jwe@octave.org> parents: 21885 diff changeset	257 other than 2 and @var{msg} will contain additional information.
112b20240c87 move docstrings in C++ files out of C strings and into comments John W. Eaton <jwe@octave.org> parents: 21885 diff changeset	258
112b20240c87 move docstrings in C++ files out of C strings and into comments John W. Eaton <jwe@octave.org> parents: 21885 diff changeset	259 You can use the function @code{lsode_options} to set optional
112b20240c87 move docstrings in C++ files out of C strings and into comments John W. Eaton <jwe@octave.org> parents: 21885 diff changeset	260 parameters for @code{lsode}.
112b20240c87 move docstrings in C++ files out of C strings and into comments John W. Eaton <jwe@octave.org> parents: 21885 diff changeset	261 @seealso{daspk, dassl, dasrt}
112b20240c87 move docstrings in C++ files out of C strings and into comments John W. Eaton <jwe@octave.org> parents: 21885 diff changeset	262 @end deftypefn */)
2928 295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe parents: diff changeset	263 {
20898 8da80da1ac37 maint: Use ovl() more places in the code. Rik <rik@octave.org> parents: 20892 diff changeset	264 int nargin = args.length ();
8da80da1ac37 maint: Use ovl() more places in the code. Rik <rik@octave.org> parents: 20892 diff changeset	265
20909 03e4ddd49396 omit unnecessary nargout checks John W. Eaton <jwe@octave.org> parents: 20898 diff changeset	266 if (nargin < 3 \|\| nargin > 4)
20898 8da80da1ac37 maint: Use ovl() more places in the code. Rik <rik@octave.org> parents: 20892 diff changeset	267 print_usage ();
2928 295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe parents: diff changeset	268
4140 303b28a7a7e4 [project @ 2002-11-01 02:53:13 by jwe] jwe parents: 4122 diff changeset	269 warned_fcn_imaginary = false;
303b28a7a7e4 [project @ 2002-11-01 02:53:13 by jwe] jwe parents: 4122 diff changeset	270 warned_jac_imaginary = false;
303b28a7a7e4 [project @ 2002-11-01 02:53:13 by jwe] jwe parents: 4122 diff changeset	271
28817 aef839f40da2 Replace unwind_protect with more efficient constructs (bug #59192). Rik <rik@octave.org> parents: 27923 diff changeset	272 octave::unwind_protect_var<int> restore_var (call_depth);
3243 dd00769643ae [project @ 1999-05-28 04:19:00 by jwe] jwe parents: 3131 diff changeset	273 call_depth++;
dd00769643ae [project @ 1999-05-28 04:19:00 by jwe] jwe parents: 3131 diff changeset	274
dd00769643ae [project @ 1999-05-28 04:19:00 by jwe] jwe parents: 3131 diff changeset	275 if (call_depth > 1)
20709 a2a99aaf680b eliminate more uses of error_state John W. Eaton <jwe@octave.org> parents: 20687 diff changeset	276 error ("lsode: invalid recursive call");
2928 295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe parents: diff changeset	277
23699 b29904962d2d deprecate some global functions that access the symbol table John W. Eaton <jwe@octave.org> parents: 23581 diff changeset	278 octave::symbol_table& symtab = interp.get_symbol_table ();
b29904962d2d deprecate some global functions that access the symbol table John W. Eaton <jwe@octave.org> parents: 23581 diff changeset	279
20801 a542a9bf177e eliminate return statements after calls to print_usage John W. Eaton <jwe@octave.org> parents: 20785 diff changeset	280 std::string fcn_name, fname, jac_name, jname;
26864 041caa61ed34 use get_function_handle instead of extract_function John W. Eaton <jwe@octave.org> parents: 26376 diff changeset	281
041caa61ed34 use get_function_handle instead of extract_function John W. Eaton <jwe@octave.org> parents: 26376 diff changeset	282 lsode_fcn = octave_value ();
041caa61ed34 use get_function_handle instead of extract_function John W. Eaton <jwe@octave.org> parents: 26376 diff changeset	283 lsode_jac = octave_value ();
20801 a542a9bf177e eliminate return statements after calls to print_usage John W. Eaton <jwe@octave.org> parents: 20785 diff changeset	284
a542a9bf177e eliminate return statements after calls to print_usage John W. Eaton <jwe@octave.org> parents: 20785 diff changeset	285 octave_value f_arg = args(0);
a542a9bf177e eliminate return statements after calls to print_usage John W. Eaton <jwe@octave.org> parents: 20785 diff changeset	286
26864 041caa61ed34 use get_function_handle instead of extract_function John W. Eaton <jwe@octave.org> parents: 26376 diff changeset	287 std::list<std::string> parameter_names ({"x", "t"});
041caa61ed34 use get_function_handle instead of extract_function John W. Eaton <jwe@octave.org> parents: 26376 diff changeset	288
23576 00e518162fda maint: Deprecate is_cell and replace with iscell. Rik <rik@octave.org> parents: 23473 diff changeset	289 if (f_arg.iscell ())
2928 295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe parents: diff changeset	290 {
20801 a542a9bf177e eliminate return statements after calls to print_usage John W. Eaton <jwe@octave.org> parents: 20785 diff changeset	291 Cell c = f_arg.cell_value ();
a542a9bf177e eliminate return statements after calls to print_usage John W. Eaton <jwe@octave.org> parents: 20785 diff changeset	292 if (c.numel () == 1)
a542a9bf177e eliminate return statements after calls to print_usage John W. Eaton <jwe@octave.org> parents: 20785 diff changeset	293 f_arg = c(0);
a542a9bf177e eliminate return statements after calls to print_usage John W. Eaton <jwe@octave.org> parents: 20785 diff changeset	294 else if (c.numel () == 2)
a542a9bf177e eliminate return statements after calls to print_usage John W. Eaton <jwe@octave.org> parents: 20785 diff changeset	295 {
26864 041caa61ed34 use get_function_handle instead of extract_function John W. Eaton <jwe@octave.org> parents: 26376 diff changeset	296 lsode_fcn = octave::get_function_handle (interp, c(0),
041caa61ed34 use get_function_handle instead of extract_function John W. Eaton <jwe@octave.org> parents: 26376 diff changeset	297 parameter_names);
2928 295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe parents: diff changeset	298
26864 041caa61ed34 use get_function_handle instead of extract_function John W. Eaton <jwe@octave.org> parents: 26376 diff changeset	299 if (lsode_fcn.is_defined ())
20801 a542a9bf177e eliminate return statements after calls to print_usage John W. Eaton <jwe@octave.org> parents: 20785 diff changeset	300 {
26864 041caa61ed34 use get_function_handle instead of extract_function John W. Eaton <jwe@octave.org> parents: 26376 diff changeset	301 lsode_jac = octave::get_function_handle (interp, c(1),
041caa61ed34 use get_function_handle instead of extract_function John W. Eaton <jwe@octave.org> parents: 26376 diff changeset	302 parameter_names);
20801 a542a9bf177e eliminate return statements after calls to print_usage John W. Eaton <jwe@octave.org> parents: 20785 diff changeset	303
26864 041caa61ed34 use get_function_handle instead of extract_function John W. Eaton <jwe@octave.org> parents: 26376 diff changeset	304 if (lsode_jac.is_undefined ())
041caa61ed34 use get_function_handle instead of extract_function John W. Eaton <jwe@octave.org> parents: 26376 diff changeset	305 lsode_fcn = octave_value ();
20801 a542a9bf177e eliminate return statements after calls to print_usage John W. Eaton <jwe@octave.org> parents: 20785 diff changeset	306 }
a542a9bf177e eliminate return statements after calls to print_usage John W. Eaton <jwe@octave.org> parents: 20785 diff changeset	307 }
a542a9bf177e eliminate return statements after calls to print_usage John W. Eaton <jwe@octave.org> parents: 20785 diff changeset	308 else
a542a9bf177e eliminate return statements after calls to print_usage John W. Eaton <jwe@octave.org> parents: 20785 diff changeset	309 error ("lsode: incorrect number of elements in cell array");
a542a9bf177e eliminate return statements after calls to print_usage John W. Eaton <jwe@octave.org> parents: 20785 diff changeset	310 }
a542a9bf177e eliminate return statements after calls to print_usage John W. Eaton <jwe@octave.org> parents: 20785 diff changeset	311
26864 041caa61ed34 use get_function_handle instead of extract_function John W. Eaton <jwe@octave.org> parents: 26376 diff changeset	312 if (lsode_fcn.is_undefined () && ! f_arg.iscell ())
20801 a542a9bf177e eliminate return statements after calls to print_usage John W. Eaton <jwe@octave.org> parents: 20785 diff changeset	313 {
a542a9bf177e eliminate return statements after calls to print_usage John W. Eaton <jwe@octave.org> parents: 20785 diff changeset	314 if (f_arg.is_function_handle () \|\| f_arg.is_inline_function ())
26864 041caa61ed34 use get_function_handle instead of extract_function John W. Eaton <jwe@octave.org> parents: 26376 diff changeset	315 lsode_fcn = f_arg;
20801 a542a9bf177e eliminate return statements after calls to print_usage John W. Eaton <jwe@octave.org> parents: 20785 diff changeset	316 else
10154 40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 10066 diff changeset	317 {
20801 a542a9bf177e eliminate return statements after calls to print_usage John W. Eaton <jwe@octave.org> parents: 20785 diff changeset	318 switch (f_arg.rows ())
10154 40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 10066 diff changeset	319 {
20801 a542a9bf177e eliminate return statements after calls to print_usage John W. Eaton <jwe@octave.org> parents: 20785 diff changeset	320 case 1:
26864 041caa61ed34 use get_function_handle instead of extract_function John W. Eaton <jwe@octave.org> parents: 26376 diff changeset	321 lsode_fcn = octave::get_function_handle (interp, f_arg,
041caa61ed34 use get_function_handle instead of extract_function John W. Eaton <jwe@octave.org> parents: 26376 diff changeset	322 parameter_names);
20801 a542a9bf177e eliminate return statements after calls to print_usage John W. Eaton <jwe@octave.org> parents: 20785 diff changeset	323 break;
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11553 diff changeset	324
20801 a542a9bf177e eliminate return statements after calls to print_usage John W. Eaton <jwe@octave.org> parents: 20785 diff changeset	325 case 2:
a542a9bf177e eliminate return statements after calls to print_usage John W. Eaton <jwe@octave.org> parents: 20785 diff changeset	326 {
20990 fc9cca99b2de Deprecate all_strings, replace with string_vector_value. Rik <rik@octave.org> parents: 20974 diff changeset	327 string_vector tmp = f_arg.string_vector_value ();
2928 295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe parents: diff changeset	328
26864 041caa61ed34 use get_function_handle instead of extract_function John W. Eaton <jwe@octave.org> parents: 26376 diff changeset	329 lsode_fcn = octave::get_function_handle (interp, tmp(0),
041caa61ed34 use get_function_handle instead of extract_function John W. Eaton <jwe@octave.org> parents: 26376 diff changeset	330 parameter_names);
2928 295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe parents: diff changeset	331
26864 041caa61ed34 use get_function_handle instead of extract_function John W. Eaton <jwe@octave.org> parents: 26376 diff changeset	332 if (lsode_fcn.is_defined ())
10154 40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 10066 diff changeset	333 {
26864 041caa61ed34 use get_function_handle instead of extract_function John W. Eaton <jwe@octave.org> parents: 26376 diff changeset	334 lsode_jac = octave::get_function_handle (interp, tmp(1),
041caa61ed34 use get_function_handle instead of extract_function John W. Eaton <jwe@octave.org> parents: 26376 diff changeset	335 parameter_names);
5729 e065f7c18bdc [project @ 2006-04-03 19:03:30 by jwe] jwe parents: 5694 diff changeset	336
26864 041caa61ed34 use get_function_handle instead of extract_function John W. Eaton <jwe@octave.org> parents: 26376 diff changeset	337 if (lsode_jac.is_undefined ())
041caa61ed34 use get_function_handle instead of extract_function John W. Eaton <jwe@octave.org> parents: 26376 diff changeset	338 lsode_fcn = octave_value ();
10154 40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 10066 diff changeset	339 }
20801 a542a9bf177e eliminate return statements after calls to print_usage John W. Eaton <jwe@octave.org> parents: 20785 diff changeset	340 }
a542a9bf177e eliminate return statements after calls to print_usage John W. Eaton <jwe@octave.org> parents: 20785 diff changeset	341 break;
2928 295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe parents: diff changeset	342
20801 a542a9bf177e eliminate return statements after calls to print_usage John W. Eaton <jwe@octave.org> parents: 20785 diff changeset	343 default:
a542a9bf177e eliminate return statements after calls to print_usage John W. Eaton <jwe@octave.org> parents: 20785 diff changeset	344 error ("lsode: first arg should be a string or 2-element string array");
10154 40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 10066 diff changeset	345 }
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 10066 diff changeset	346 }
20801 a542a9bf177e eliminate return statements after calls to print_usage John W. Eaton <jwe@octave.org> parents: 20785 diff changeset	347 }
2928 295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe parents: diff changeset	348
26864 041caa61ed34 use get_function_handle instead of extract_function John W. Eaton <jwe@octave.org> parents: 26376 diff changeset	349 if (lsode_fcn.is_undefined ())
20801 a542a9bf177e eliminate return statements after calls to print_usage John W. Eaton <jwe@octave.org> parents: 20785 diff changeset	350 error ("lsode: FCN argument is not a valid function name or handle");
20687 5f04bfc7c17a backout changeset 18f38ed43962 John W. Eaton <jwe@octave.org> parents: 20682 diff changeset	351
20801 a542a9bf177e eliminate return statements after calls to print_usage John W. Eaton <jwe@octave.org> parents: 20785 diff changeset	352 ColumnVector state = args(1).xvector_value ("lsode: initial state X_0 must be a vector");
a542a9bf177e eliminate return statements after calls to print_usage John W. Eaton <jwe@octave.org> parents: 20785 diff changeset	353 ColumnVector out_times = args(2).xvector_value ("lsode: output time variable T must be a vector");
2928 295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe parents: diff changeset	354
20801 a542a9bf177e eliminate return statements after calls to print_usage John W. Eaton <jwe@octave.org> parents: 20785 diff changeset	355 ColumnVector crit_times;
2928 295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe parents: diff changeset	356
20801 a542a9bf177e eliminate return statements after calls to print_usage John W. Eaton <jwe@octave.org> parents: 20785 diff changeset	357 int crit_times_set = 0;
a542a9bf177e eliminate return statements after calls to print_usage John W. Eaton <jwe@octave.org> parents: 20785 diff changeset	358 if (nargin > 3)
a542a9bf177e eliminate return statements after calls to print_usage John W. Eaton <jwe@octave.org> parents: 20785 diff changeset	359 {
a542a9bf177e eliminate return statements after calls to print_usage John W. Eaton <jwe@octave.org> parents: 20785 diff changeset	360 crit_times = args(3).xvector_value ("lsode: 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	361
20801 a542a9bf177e eliminate return statements after calls to print_usage John W. Eaton <jwe@octave.org> parents: 20785 diff changeset	362 crit_times_set = 1;
a542a9bf177e eliminate return statements after calls to print_usage John W. Eaton <jwe@octave.org> parents: 20785 diff changeset	363 }
2928 295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe parents: diff changeset	364
20801 a542a9bf177e eliminate return statements after calls to print_usage John W. Eaton <jwe@octave.org> parents: 20785 diff changeset	365 double tzero = out_times (0);
3243 dd00769643ae [project @ 1999-05-28 04:19:00 by jwe] jwe parents: 3131 diff changeset	366
20801 a542a9bf177e eliminate return statements after calls to print_usage John W. Eaton <jwe@octave.org> parents: 20785 diff changeset	367 ODEFunc func (lsode_user_function);
26864 041caa61ed34 use get_function_handle instead of extract_function John W. Eaton <jwe@octave.org> parents: 26376 diff changeset	368
041caa61ed34 use get_function_handle instead of extract_function John W. Eaton <jwe@octave.org> parents: 26376 diff changeset	369 if (lsode_jac.is_defined ())
20801 a542a9bf177e eliminate return statements after calls to print_usage John W. Eaton <jwe@octave.org> parents: 20785 diff changeset	370 func.set_jacobian_function (lsode_user_jacobian);
2928 295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe parents: diff changeset	371
20801 a542a9bf177e eliminate return statements after calls to print_usage John W. Eaton <jwe@octave.org> parents: 20785 diff changeset	372 LSODE ode (state, tzero, func);
3243 dd00769643ae [project @ 1999-05-28 04:19:00 by jwe] jwe parents: 3131 diff changeset	373
20801 a542a9bf177e eliminate return statements after calls to print_usage John W. Eaton <jwe@octave.org> parents: 20785 diff changeset	374 ode.set_options (lsode_opts);
3243 dd00769643ae [project @ 1999-05-28 04:19:00 by jwe] jwe parents: 3131 diff changeset	375
20801 a542a9bf177e eliminate return statements after calls to print_usage John W. Eaton <jwe@octave.org> parents: 20785 diff changeset	376 Matrix output;
a542a9bf177e eliminate return statements after calls to print_usage John W. Eaton <jwe@octave.org> parents: 20785 diff changeset	377 if (crit_times_set)
a542a9bf177e eliminate return statements after calls to print_usage John W. Eaton <jwe@octave.org> parents: 20785 diff changeset	378 output = ode.integrate (out_times, crit_times);
a542a9bf177e eliminate return statements after calls to print_usage John W. Eaton <jwe@octave.org> parents: 20785 diff changeset	379 else
a542a9bf177e eliminate return statements after calls to print_usage John W. Eaton <jwe@octave.org> parents: 20785 diff changeset	380 output = ode.integrate (out_times);
5729 e065f7c18bdc [project @ 2006-04-03 19:03:30 by jwe] jwe parents: 5694 diff changeset	381
20801 a542a9bf177e eliminate return statements after calls to print_usage John W. Eaton <jwe@octave.org> parents: 20785 diff changeset	382 if (fcn_name.length ())
23699 b29904962d2d deprecate some global functions that access the symbol table John W. Eaton <jwe@octave.org> parents: 23581 diff changeset	383 symtab.clear_function (fcn_name);
20801 a542a9bf177e eliminate return statements after calls to print_usage John W. Eaton <jwe@octave.org> parents: 20785 diff changeset	384 if (jac_name.length ())
23699 b29904962d2d deprecate some global functions that access the symbol table John W. Eaton <jwe@octave.org> parents: 23581 diff changeset	385 symtab.clear_function (jac_name);
3997 d4091aff6468 [project @ 2002-07-17 18:00:06 by jwe] jwe parents: 3991 diff changeset	386
20801 a542a9bf177e eliminate return statements after calls to print_usage John W. Eaton <jwe@octave.org> parents: 20785 diff changeset	387 std::string msg = ode.error_message ();
a542a9bf177e eliminate return statements after calls to print_usage John W. Eaton <jwe@octave.org> parents: 20785 diff changeset	388
20898 8da80da1ac37 maint: Use ovl() more places in the code. Rik <rik@octave.org> parents: 20892 diff changeset	389 octave_value_list retval (3);
8da80da1ac37 maint: Use ovl() more places in the code. Rik <rik@octave.org> parents: 20892 diff changeset	390
20801 a542a9bf177e eliminate return statements after calls to print_usage John W. Eaton <jwe@octave.org> parents: 20785 diff changeset	391 if (ode.integration_ok ())
a542a9bf177e eliminate return statements after calls to print_usage John W. Eaton <jwe@octave.org> parents: 20785 diff changeset	392 retval(0) = output;
20892 c07bee629973 2015 Code Sprint: use ovl (). Rik <rik@octave.org> parents: 20853 diff changeset	393 else if (nargout < 2)
c07bee629973 2015 Code Sprint: use ovl (). Rik <rik@octave.org> parents: 20853 diff changeset	394 error ("lsode: %s", msg.c_str ());
20801 a542a9bf177e eliminate return statements after calls to print_usage John W. Eaton <jwe@octave.org> parents: 20785 diff changeset	395 else
20892 c07bee629973 2015 Code Sprint: use ovl (). Rik <rik@octave.org> parents: 20853 diff changeset	396 retval(0) = Matrix ();
3959 5a848097fe4a [project @ 2002-05-24 17:58:16 by jwe] jwe parents: 3957 diff changeset	397
20892 c07bee629973 2015 Code Sprint: use ovl (). Rik <rik@octave.org> parents: 20853 diff changeset	398 retval(1) = static_cast<double> (ode.integration_state ());
c07bee629973 2015 Code Sprint: use ovl (). Rik <rik@octave.org> parents: 20853 diff changeset	399 retval(2) = msg;
2928 295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe parents: diff changeset	400
295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe parents: diff changeset	401 return retval;
295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe parents: diff changeset	402 }
295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe parents: diff changeset	403
295f037b4b3e [project @ 1997-05-05 05:32:33 by jwe] jwe parents: diff changeset	404 /*
7562 c827f5673321 move tests to individual source files John W. Eaton <jwe@octave.org> parents: 7017 diff changeset	405
14501 60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions. Rik <octave@nomad.inbox5.com> parents: 14138 diff changeset	406 ## dassl-1.m
60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions. Rik <octave@nomad.inbox5.com> parents: 14138 diff changeset	407 ##
60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions. Rik <octave@nomad.inbox5.com> parents: 14138 diff changeset	408 ## Test lsode() function
60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions. Rik <octave@nomad.inbox5.com> parents: 14138 diff changeset	409 ##
60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions. Rik <octave@nomad.inbox5.com> parents: 14138 diff changeset	410 ## 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	411 ## Comalco Research and Technology
60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions. Rik <octave@nomad.inbox5.com> parents: 14138 diff changeset	412 ## 20 May 1998
60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions. Rik <octave@nomad.inbox5.com> parents: 14138 diff changeset	413 ##
60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions. Rik <octave@nomad.inbox5.com> parents: 14138 diff changeset	414 ## Problem
60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions. Rik <octave@nomad.inbox5.com> parents: 14138 diff changeset	415 ##
60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions. Rik <octave@nomad.inbox5.com> parents: 14138 diff changeset	416 ## 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	417 ## 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	418 ##
60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions. Rik <octave@nomad.inbox5.com> parents: 14138 diff changeset	419 ## Solution
60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions. Rik <octave@nomad.inbox5.com> parents: 14138 diff changeset	420 ##
60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions. Rik <octave@nomad.inbox5.com> parents: 14138 diff changeset	421 ## y1(t) = cos(t)
60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions. Rik <octave@nomad.inbox5.com> parents: 14138 diff changeset	422 ## y2(t) = sin(t)
60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions. Rik <octave@nomad.inbox5.com> parents: 14138 diff changeset	423 ##
14085 4e8f23ccadce test: Use internal prefix "__" for %!functions to avoid polluting workspace Rik <octave@nomad.inbox5.com> parents: 13915 diff changeset	424 %!function xdot = __f (x, t)
7562 c827f5673321 move tests to individual source files John W. Eaton <jwe@octave.org> parents: 7017 diff changeset	425 %! xdot = [-x(2); x(1)];
14501 60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions. Rik <octave@nomad.inbox5.com> parents: 14138 diff changeset	426 %!endfunction
7562 c827f5673321 move tests to individual source files John W. Eaton <jwe@octave.org> parents: 7017 diff changeset	427 %!test
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11553 diff changeset	428 %!
7562 c827f5673321 move tests to individual source files John W. Eaton <jwe@octave.org> parents: 7017 diff changeset	429 %! x0 = [1; 0];
c827f5673321 move tests to individual source files John W. Eaton <jwe@octave.org> parents: 7017 diff changeset	430 %! xdot0 = [0; 1];
c827f5673321 move tests to individual source files John W. Eaton <jwe@octave.org> parents: 7017 diff changeset	431 %! t = (0:1:10)';
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11553 diff changeset	432 %!
7562 c827f5673321 move tests to individual source files John W. Eaton <jwe@octave.org> parents: 7017 diff changeset	433 %! tol = 500 * lsode_options ("relative tolerance");
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11553 diff changeset	434 %!
14085 4e8f23ccadce test: Use internal prefix "__" for %!functions to avoid polluting workspace Rik <octave@nomad.inbox5.com> parents: 13915 diff changeset	435 %! x = lsode ("__f", x0, t);
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11553 diff changeset	436 %!
7562 c827f5673321 move tests to individual source files John W. Eaton <jwe@octave.org> parents: 7017 diff changeset	437 %! y = [cos(t), sin(t)];
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11553 diff changeset	438 %!
14501 60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions. Rik <octave@nomad.inbox5.com> parents: 14138 diff changeset	439 %! assert (x, y, tol);
7562 c827f5673321 move tests to individual source files John W. Eaton <jwe@octave.org> parents: 7017 diff changeset	440
14085 4e8f23ccadce test: Use internal prefix "__" for %!functions to avoid polluting workspace Rik <octave@nomad.inbox5.com> parents: 13915 diff changeset	441 %!function xdotdot = __f (x, t)
7562 c827f5673321 move tests to individual source files John W. Eaton <jwe@octave.org> parents: 7017 diff changeset	442 %! xdotdot = [x(2); -x(1)];
14501 60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions. Rik <octave@nomad.inbox5.com> parents: 14138 diff changeset	443 %!endfunction
7562 c827f5673321 move tests to individual source files John W. Eaton <jwe@octave.org> parents: 7017 diff changeset	444 %!test
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11553 diff changeset	445 %!
7562 c827f5673321 move tests to individual source files John W. Eaton <jwe@octave.org> parents: 7017 diff changeset	446 %! x0 = [1; 0];
c827f5673321 move tests to individual source files John W. Eaton <jwe@octave.org> parents: 7017 diff changeset	447 %! t = [0; 2*pi];
c827f5673321 move tests to individual source files John W. Eaton <jwe@octave.org> parents: 7017 diff changeset	448 %! tol = 100 * dassl_options ("relative tolerance");
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11553 diff changeset	449 %!
14085 4e8f23ccadce test: Use internal prefix "__" for %!functions to avoid polluting workspace Rik <octave@nomad.inbox5.com> parents: 13915 diff changeset	450 %! x = lsode ("__f", x0, t);
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11553 diff changeset	451 %!
7562 c827f5673321 move tests to individual source files John W. Eaton <jwe@octave.org> parents: 7017 diff changeset	452 %! y = [1, 0; 1, 0];
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11553 diff changeset	453 %!
14501 60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions. Rik <octave@nomad.inbox5.com> parents: 14138 diff changeset	454 %! assert (x, y, tol);
7562 c827f5673321 move tests to individual source files John W. Eaton <jwe@octave.org> parents: 7017 diff changeset	455
14085 4e8f23ccadce test: Use internal prefix "__" for %!functions to avoid polluting workspace Rik <octave@nomad.inbox5.com> parents: 13915 diff changeset	456 %!function xdot = __f (x, t)
7562 c827f5673321 move tests to individual source files John W. Eaton <jwe@octave.org> parents: 7017 diff changeset	457 %! xdot = x;
14501 60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions. Rik <octave@nomad.inbox5.com> parents: 14138 diff changeset	458 %!endfunction
7562 c827f5673321 move tests to individual source files John W. Eaton <jwe@octave.org> parents: 7017 diff changeset	459 %!test
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11553 diff changeset	460 %!
7562 c827f5673321 move tests to individual source files John W. Eaton <jwe@octave.org> parents: 7017 diff changeset	461 %! x0 = 1;
c827f5673321 move tests to individual source files John W. Eaton <jwe@octave.org> parents: 7017 diff changeset	462 %! t = [0; 1];
c827f5673321 move tests to individual source files John W. Eaton <jwe@octave.org> parents: 7017 diff changeset	463 %! tol = 100 * dassl_options ("relative tolerance");
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11553 diff changeset	464 %!
14085 4e8f23ccadce test: Use internal prefix "__" for %!functions to avoid polluting workspace Rik <octave@nomad.inbox5.com> parents: 13915 diff changeset	465 %! x = lsode ("__f", x0, t);
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11553 diff changeset	466 %!
7562 c827f5673321 move tests to individual source files John W. Eaton <jwe@octave.org> parents: 7017 diff changeset	467 %! y = [1; e];
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11553 diff changeset	468 %!
14501 60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions. Rik <octave@nomad.inbox5.com> parents: 14138 diff changeset	469 %! assert (x, y, tol);
7562 c827f5673321 move tests to individual source files John W. Eaton <jwe@octave.org> parents: 7017 diff changeset	470
c827f5673321 move tests to individual source files John W. Eaton <jwe@octave.org> parents: 7017 diff changeset	471 %!test
c827f5673321 move tests to individual source files John W. Eaton <jwe@octave.org> parents: 7017 diff changeset	472 %! lsode_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	473 %! assert (lsode_options ("absolute tolerance") == eps);
7562 c827f5673321 move tests to individual source files John W. Eaton <jwe@octave.org> parents: 7017 diff changeset	474
14501 60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions. Rik <octave@nomad.inbox5.com> parents: 14138 diff changeset	475 %!error lsode_options ("foo", 1, 2)
7562 c827f5673321 move tests to individual source files John W. Eaton <jwe@octave.org> parents: 7017 diff changeset	476 */

Mercurial > octave

annotate libinterp/corefcn/lsode.cc @ 28817:aef839f40da2