Mercurial > octave-nkf
annotate src/DLD-FUNCTIONS/dasrt.cc @ 9067:8970b4b10e9f
Cleanup documentation for quad.texi and diffeq.texi
Grammarcheck input .txi files
Spellcheck .texi files
| author | Rik <rdrider0-list@yahoo.com> |
|---|---|
| date | Sat, 28 Mar 2009 22:18:51 -0700 |
| parents | 7c02ec148a3c |
| children | 610bf90fce2a |
| rev | line source |
|---|---|
| 3990 | 1 /* |
| 2 | |
| 8920 | 3 Copyright (C) 2002, 2003, 2004, 2005, 2006, 2007, 2009 John W. Eaton |
| 3990 | 4 |
| 5 This file is part of Octave. | |
| 6 | |
| 7 Octave is free software; you can redistribute it and/or modify it | |
| 8 under the terms of the GNU General Public License as published by the | |
| 7016 | 9 Free Software Foundation; either version 3 of the License, or (at your |
| 10 option) any later version. | |
| 3990 | 11 |
| 12 Octave is distributed in the hope that it will be useful, but WITHOUT | |
| 13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 15 for more details. | |
| 16 | |
| 17 You should have received a copy of the GNU General Public License | |
| 7016 | 18 along with Octave; see the file COPYING. If not, see |
| 19 <http://www.gnu.org/licenses/>. | |
| 3990 | 20 |
| 21 */ | |
| 22 | |
| 23 #ifdef HAVE_CONFIG_H | |
| 24 #include <config.h> | |
| 25 #endif | |
| 26 | |
| 4052 | 27 #include <iostream> |
| 3990 | 28 #include <string> |
| 29 | |
| 30 #include "DASRT.h" | |
| 31 #include "lo-mappers.h" | |
| 32 | |
| 33 #include "defun-dld.h" | |
| 34 #include "error.h" | |
| 35 #include "gripes.h" | |
| 36 #include "oct-obj.h" | |
| 37 #include "ov-fcn.h" | |
| 5729 | 38 #include "ov-cell.h" |
| 3990 | 39 #include "pager.h" |
| 40 #include "parse.h" | |
| 41 #include "unwind-prot.h" | |
| 42 #include "utils.h" | |
| 43 #include "variables.h" | |
| 44 | |
| 3998 | 45 #include "DASRT-opts.cc" |
| 46 | |
| 4115 | 47 // Global pointers for user defined function required by dasrt. |
| 3990 | 48 static octave_function *dasrt_f; |
| 49 static octave_function *dasrt_j; | |
| 50 static octave_function *dasrt_cf; | |
| 51 | |
| 4140 | 52 // Have we warned about imaginary values returned from user function? |
| 53 static bool warned_fcn_imaginary = false; | |
| 54 static bool warned_jac_imaginary = false; | |
| 55 static bool warned_cf_imaginary = false; | |
| 56 | |
| 3990 | 57 // Is this a recursive call? |
| 58 static int call_depth = 0; | |
| 59 | |
| 60 static ColumnVector | |
| 4628 | 61 dasrt_user_f (const ColumnVector& x, const ColumnVector& xdot, |
| 5275 | 62 double t, octave_idx_type&) |
| 3990 | 63 { |
| 64 ColumnVector retval; | |
| 65 | |
| 4628 | 66 assert (x.capacity () == xdot.capacity ()); |
| 3990 | 67 |
| 4628 | 68 octave_value_list args; |
| 3990 | 69 |
| 3993 | 70 args(2) = t; |
| 4628 | 71 args(1) = xdot; |
| 72 args(0) = x; | |
| 3990 | 73 |
| 74 if (dasrt_f) | |
| 75 { | |
| 76 octave_value_list tmp = dasrt_f->do_multi_index_op (1, args); | |
| 77 | |
| 78 if (error_state) | |
| 79 { | |
| 80 gripe_user_supplied_eval ("dasrt"); | |
| 81 return retval; | |
| 82 } | |
| 83 | |
| 84 if (tmp.length () > 0 && tmp(0).is_defined ()) | |
| 85 { | |
| 4140 | 86 if (! warned_fcn_imaginary && tmp(0).is_complex_type ()) |
| 87 { | |
| 88 warning ("dasrt: ignoring imaginary part returned from user-supplied function"); | |
| 89 warned_fcn_imaginary = true; | |
| 90 } | |
| 91 | |
| 3990 | 92 retval = ColumnVector (tmp(0).vector_value ()); |
| 93 | |
| 94 if (error_state || retval.length () == 0) | |
| 95 gripe_user_supplied_eval ("dasrt"); | |
| 96 } | |
| 97 else | |
| 98 gripe_user_supplied_eval ("dasrt"); | |
| 99 } | |
| 100 | |
| 101 return retval; | |
| 102 } | |
| 103 | |
| 104 static ColumnVector | |
| 105 dasrt_user_cf (const ColumnVector& x, double t) | |
| 106 { | |
| 107 ColumnVector retval; | |
| 108 | |
| 109 octave_value_list args; | |
| 110 | |
| 111 args(1) = t; | |
| 4628 | 112 args(0) = x; |
| 3990 | 113 |
| 114 if (dasrt_cf) | |
| 115 { | |
| 116 octave_value_list tmp = dasrt_cf->do_multi_index_op (1, args); | |
| 117 | |
| 118 if (error_state) | |
| 119 { | |
| 120 gripe_user_supplied_eval ("dasrt"); | |
| 121 return retval; | |
| 122 } | |
| 123 | |
| 124 if (tmp.length () > 0 && tmp(0).is_defined ()) | |
| 125 { | |
| 4140 | 126 if (! warned_cf_imaginary && tmp(0).is_complex_type ()) |
| 127 { | |
| 128 warning ("dasrt: ignoring imaginary part returned from user-supplied constraint function"); | |
| 129 warned_cf_imaginary = true; | |
| 130 } | |
| 131 | |
| 3990 | 132 retval = ColumnVector (tmp(0).vector_value ()); |
| 133 | |
| 134 if (error_state || retval.length () == 0) | |
| 135 gripe_user_supplied_eval ("dasrt"); | |
| 136 } | |
| 137 else | |
| 138 gripe_user_supplied_eval ("dasrt"); | |
| 139 } | |
| 140 | |
| 141 return retval; | |
| 142 } | |
| 143 | |
| 144 static Matrix | |
| 3993 | 145 dasrt_user_j (const ColumnVector& x, const ColumnVector& xdot, |
| 146 double t, double cj) | |
| 3990 | 147 { |
| 148 Matrix retval; | |
| 149 | |
| 4628 | 150 assert (x.capacity () == xdot.capacity ()); |
| 3990 | 151 |
| 3993 | 152 octave_value_list args; |
| 153 | |
| 154 args(3) = cj; | |
| 155 args(2) = t; | |
| 4628 | 156 args(1) = xdot; |
| 157 args(0) = x; | |
| 3990 | 158 |
| 3993 | 159 if (dasrt_j) |
| 160 { | |
| 161 octave_value_list tmp = dasrt_j->do_multi_index_op (1, args); | |
| 3990 | 162 |
| 163 if (error_state) | |
| 164 { | |
| 165 gripe_user_supplied_eval ("dasrt"); | |
| 166 return retval; | |
| 167 } | |
| 168 | |
| 3993 | 169 int tlen = tmp.length (); |
| 170 if (tlen > 0 && tmp(0).is_defined ()) | |
| 3990 | 171 { |
| 4140 | 172 if (! warned_jac_imaginary && tmp(0).is_complex_type ()) |
| 173 { | |
| 174 warning ("dasrt: ignoring imaginary part returned from user-supplied jacobian function"); | |
| 175 warned_jac_imaginary = true; | |
| 176 } | |
| 177 | |
| 3990 | 178 retval = tmp(0).matrix_value (); |
| 179 | |
| 180 if (error_state || retval.length () == 0) | |
| 181 gripe_user_supplied_eval ("dasrt"); | |
| 182 } | |
| 183 else | |
| 184 gripe_user_supplied_eval ("dasrt"); | |
| 185 } | |
| 186 | |
| 187 return retval; | |
| 188 } | |
| 189 | |
| 190 #define DASRT_ABORT \ | |
| 191 do \ | |
| 192 { \ | |
| 193 unwind_protect::run_frame ("Fdasrt"); \ | |
| 194 return retval; \ | |
| 195 } \ | |
| 196 while (0) | |
| 197 | |
| 198 #define DASRT_ABORT1(msg) \ | |
| 199 do \ | |
| 200 { \ | |
| 4035 | 201 ::error ("dasrt: " msg); \ |
| 3990 | 202 DASRT_ABORT; \ |
| 203 } \ | |
| 204 while (0) | |
| 205 | |
| 206 #define DASRT_ABORT2(fmt, arg) \ | |
| 207 do \ | |
| 208 { \ | |
| 4035 | 209 ::error ("dasrt: " fmt, arg); \ |
| 3990 | 210 DASRT_ABORT; \ |
| 211 } \ | |
| 212 while (0) | |
| 213 | |
| 3997 | 214 DEFUN_DLD (dasrt, args, nargout, |
| 3990 | 215 "-*- texinfo -*-\n\ |
| 4115 | 216 @deftypefn {Loadable Function} {[@var{x}, @var{xdot}, @var{t_out}, @var{istat}, @var{msg}] =} dasrt (@var{fcn} [, @var{g}], @var{x_0}, @var{xdot_0}, @var{t} [, @var{t_crit}])\n\ |
| 217 Solve the set of differential-algebraic equations\n\ | |
| 218 @tex\n\ | |
| 4852 | 219 $$ 0 = f (x, \\dot{x}, t) $$\n\ |
| 4115 | 220 with\n\ |
| 221 $$ x(t_0) = x_0, \\dot{x}(t_0) = \\dot{x}_0 $$\n\ | |
| 222 @end tex\n\ | |
|
8517
81d6ab3ac93c
Allow documentation tobe built for other formats than tex and info
sh@sh-laptop
parents:
7017
diff
changeset
|
223 @ifnottex\n\ |
| 3990 | 224 \n\ |
| 225 @example\n\ | |
| 4852 | 226 0 = f (x, xdot, t)\n\ |
| 4115 | 227 @end example\n\ |
| 228 \n\ | |
| 229 with\n\ | |
| 230 \n\ | |
| 231 @example\n\ | |
| 232 x(t_0) = x_0, xdot(t_0) = xdot_0\n\ | |
| 3990 | 233 @end example\n\ |
| 234 \n\ | |
|
8517
81d6ab3ac93c
Allow documentation tobe built for other formats than tex and info
sh@sh-laptop
parents:
7017
diff
changeset
|
235 @end ifnottex\n\ |
| 4115 | 236 with functional stopping criteria (root solving).\n\ |
| 237 \n\ | |
| 238 The solution is returned in the matrices @var{x} and @var{xdot},\n\ | |
| 239 with each row in the result matrices corresponding to one of the\n\ | |
| 240 elements in the vector @var{t_out}. The first element of @var{t}\n\ | |
| 241 should be @math{t_0} and correspond to the initial state of the\n\ | |
| 242 system @var{x_0} and its derivative @var{xdot_0}, so that the first\n\ | |
| 243 row of the output @var{x} is @var{x_0} and the first row\n\ | |
| 244 of the output @var{xdot} is @var{xdot_0}.\n\ | |
| 245 \n\ | |
| 246 The vector @var{t} provides an upper limit on the length of the\n\ | |
| 247 integration. If the stopping condition is met, the vector\n\ | |
| 248 @var{t_out} will be shorter than @var{t}, and the final element of\n\ | |
| 249 @var{t_out} will be the point at which the stopping condition was met,\n\ | |
| 250 and may not correspond to any element of the vector @var{t}.\n\ | |
| 251 \n\ | |
| 8787 | 252 The first argument, @var{fcn}, is a string, inline, or function handle\n\ |
| 253 that names the function @math{f} to call to compute the vector of\n\ | |
| 254 residuals for the set of equations. It must have the form\n\ | |
| 3990 | 255 \n\ |
| 256 @example\n\ | |
| 4115 | 257 @var{res} = f (@var{x}, @var{xdot}, @var{t})\n\ |
| 3990 | 258 @end example\n\ |
| 259 \n\ | |
| 260 @noindent\n\ | |
| 4115 | 261 in which @var{x}, @var{xdot}, and @var{res} are vectors, and @var{t} is a\n\ |
| 262 scalar.\n\ | |
| 263 \n\ | |
| 8787 | 264 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
|
265 of strings, inline functions, or function handles, the first element names\n\ |
| 8787 | 266 the function @math{f} described above, and the second element names a\n\ |
| 267 function to compute the modified Jacobian\n\ | |
| 3990 | 268 \n\ |
| 4115 | 269 @tex\n\ |
| 270 $$\n\ | |
| 271 J = {\\partial f \\over \\partial x}\n\ | |
| 272 + c {\\partial f \\over \\partial \\dot{x}}\n\ | |
| 273 $$\n\ | |
| 274 @end tex\n\ | |
|
8517
81d6ab3ac93c
Allow documentation tobe built for other formats than tex and info
sh@sh-laptop
parents:
7017
diff
changeset
|
275 @ifnottex\n\ |
| 3990 | 276 \n\ |
| 4115 | 277 @example\n\ |
|
9064
7c02ec148a3c
Check grammar on all .cc files
Rik <rdrider0-list@yahoo.com>
parents:
8920
diff
changeset
|
278 @group\n\ |
| 4115 | 279 df df\n\ |
| 280 jac = -- + c ------\n\ | |
| 281 dx d xdot\n\ | |
|
9064
7c02ec148a3c
Check grammar on all .cc files
Rik <rdrider0-list@yahoo.com>
parents:
8920
diff
changeset
|
282 @end group\n\ |
| 4115 | 283 @end example\n\ |
| 284 \n\ | |
|
8517
81d6ab3ac93c
Allow documentation tobe built for other formats than tex and info
sh@sh-laptop
parents:
7017
diff
changeset
|
285 @end ifnottex\n\ |
| 4115 | 286 \n\ |
| 287 The modified Jacobian function must have the form\n\ | |
| 288 \n\ | |
| 289 @example\n\ | |
|
9064
7c02ec148a3c
Check grammar on all .cc files
Rik <rdrider0-list@yahoo.com>
parents:
8920
diff
changeset
|
290 @group\n\ |
| 3990 | 291 \n\ |
| 4115 | 292 @var{jac} = j (@var{x}, @var{xdot}, @var{t}, @var{c})\n\ |
| 293 \n\ | |
|
9064
7c02ec148a3c
Check grammar on all .cc files
Rik <rdrider0-list@yahoo.com>
parents:
8920
diff
changeset
|
294 @end group\n\ |
| 4115 | 295 @end example\n\ |
| 3990 | 296 \n\ |
| 4115 | 297 The optional second argument names a function that defines the\n\ |
| 298 constraint functions whose roots are desired during the integration.\n\ | |
| 299 This function must have the form\n\ | |
| 3990 | 300 \n\ |
| 4115 | 301 @example\n\ |
| 302 @var{g_out} = g (@var{x}, @var{t})\n\ | |
| 303 @end example\n\ | |
| 3990 | 304 \n\ |
| 4115 | 305 and return a vector of the constraint function values.\n\ |
| 306 If the value of any of the constraint functions changes sign, @sc{Dasrt}\n\ | |
| 307 will attempt to stop the integration at the point of the sign change.\n\ | |
| 308 \n\ | |
| 309 If the name of the constraint function is omitted, @code{dasrt} solves\n\ | |
| 4852 | 310 the same problem as @code{daspk} or @code{dassl}.\n\ |
| 3990 | 311 \n\ |
| 4115 | 312 Note that because of numerical errors in the constraint functions\n\ |
| 313 due to roundoff and integration error, @sc{Dasrt} may return false\n\ | |
| 314 roots, or return the same root at two or more nearly equal values of\n\ | |
| 315 @var{T}. If such false roots are suspected, the user should consider\n\ | |
| 316 smaller error tolerances or higher precision in the evaluation of the\n\ | |
| 317 constraint functions.\n\ | |
| 3990 | 318 \n\ |
| 4115 | 319 If a root of some constraint function defines the end of the problem,\n\ |
| 320 the input to @sc{Dasrt} should nevertheless allow integration to a\n\ | |
| 321 point slightly past that root, so that @sc{Dasrt} can locate the root\n\ | |
| 322 by interpolation.\n\ | |
| 3990 | 323 \n\ |
| 4115 | 324 The third and fourth arguments to @code{dasrt} specify the initial\n\ |
| 325 condition of the states and their derivatives, and the fourth argument\n\ | |
| 326 specifies a vector of output times at which the solution is desired,\n\ | |
| 327 including the time corresponding to the initial condition.\n\ | |
| 328 \n\ | |
| 329 The set of initial states and derivatives are not strictly required to\n\ | |
| 330 be consistent. In practice, however, @sc{Dassl} is not very good at\n\ | |
| 331 determining a consistent set for you, so it is best if you ensure that\n\ | |
| 332 the initial values result in the function evaluating to zero.\n\ | |
| 3990 | 333 \n\ |
| 4115 | 334 The sixth argument is optional, and may be used to specify a set of\n\ |
| 335 times that the DAE solver should not integrate past. It is useful for\n\ | |
| 336 avoiding difficulties with singularities and points where there is a\n\ | |
| 337 discontinuity in the derivative.\n\ | |
| 3990 | 338 \n\ |
| 4115 | 339 After a successful computation, the value of @var{istate} will be\n\ |
| 340 greater than zero (consistent with the Fortran version of @sc{Dassl}).\n\ | |
| 341 \n\ | |
| 342 If the computation is not successful, the value of @var{istate} will be\n\ | |
| 343 less than zero and @var{msg} will contain additional information.\n\ | |
| 3990 | 344 \n\ |
| 345 You can use the function @code{dasrt_options} to set optional\n\ | |
| 346 parameters for @code{dasrt}.\n\ | |
| 5694 | 347 @seealso{daspk, dasrt, lsode}\n\ |
| 5642 | 348 @end deftypefn") |
| 3990 | 349 { |
| 350 octave_value_list retval; | |
| 351 | |
| 4140 | 352 warned_fcn_imaginary = false; |
| 353 warned_jac_imaginary = false; | |
| 354 warned_cf_imaginary = false; | |
| 355 | |
| 3990 | 356 unwind_protect::begin_frame ("Fdasrt"); |
| 357 | |
| 358 unwind_protect_int (call_depth); | |
| 359 call_depth++; | |
| 360 | |
| 361 if (call_depth > 1) | |
| 362 DASRT_ABORT1 ("invalid recursive call"); | |
| 363 | |
| 364 int argp = 0; | |
| 365 | |
| 366 int nargin = args.length (); | |
| 367 | |
| 368 if (nargin < 4 || nargin > 6) | |
| 369 { | |
| 5823 | 370 print_usage (); |
| 3990 | 371 unwind_protect::run_frame ("Fdasrt"); |
| 372 return retval; | |
| 373 } | |
| 374 | |
| 5729 | 375 std::string fcn_name, fname, jac_name, jname; |
| 3990 | 376 dasrt_f = 0; |
| 377 dasrt_j = 0; | |
| 378 dasrt_cf = 0; | |
| 379 | |
| 380 // Check all the arguments. Are they the right animals? | |
| 381 | |
| 382 // Here's where I take care of f and j in one shot: | |
| 383 | |
| 384 octave_value f_arg = args(0); | |
| 385 | |
| 5729 | 386 if (f_arg.is_cell ()) |
| 3990 | 387 { |
| 5729 | 388 Cell c = f_arg.cell_value (); |
| 389 if (c.length() == 1) | |
| 390 f_arg = c(0); | |
| 391 else if (c.length() == 2) | |
| 392 { | |
| 393 if (c(0).is_function_handle () || c(0).is_inline_function ()) | |
| 394 dasrt_f = c(0).function_value (); | |
| 395 else | |
| 396 { | |
| 397 fcn_name = unique_symbol_name ("__dasrt_fcn__"); | |
| 398 fname = "function y = "; | |
| 399 fname.append (fcn_name); | |
| 400 fname.append (" (x, xdot, t) y = "); | |
| 401 dasrt_f = extract_function | |
| 402 (c(0), "dasrt", fcn_name, fname, "; endfunction"); | |
| 403 } | |
| 404 | |
| 405 if (dasrt_f) | |
| 406 { | |
| 407 if (c(1).is_function_handle () || c(1).is_inline_function ()) | |
| 408 dasrt_j = c(1).function_value (); | |
| 409 else | |
| 410 { | |
| 411 jac_name = unique_symbol_name ("__dasrt_jac__"); | |
| 412 jname = "function jac = "; | |
| 413 jname.append(jac_name); | |
| 414 jname.append (" (x, xdot, t, cj) jac = "); | |
| 415 dasrt_j = extract_function | |
| 416 (c(1), "dasrt", jac_name, jname, "; endfunction"); | |
| 417 | |
| 418 if (!dasrt_j) | |
| 419 { | |
| 420 if (fcn_name.length()) | |
| 421 clear_function (fcn_name); | |
| 422 dasrt_f = 0; | |
| 423 } | |
| 424 } | |
| 425 } | |
| 426 } | |
| 427 else | |
| 428 DASRT_ABORT1 ("incorrect number of elements in cell array"); | |
| 429 } | |
| 430 | |
| 431 if (!dasrt_f && ! f_arg.is_cell()) | |
| 432 { | |
| 433 if (f_arg.is_function_handle () || f_arg.is_inline_function ()) | |
| 434 dasrt_f = f_arg.function_value (); | |
| 435 else | |
| 436 { | |
| 437 switch (f_arg.rows ()) | |
| 438 { | |
| 439 case 1: | |
| 440 fcn_name = unique_symbol_name ("__dasrt_fcn__"); | |
| 441 fname = "function y = "; | |
| 442 fname.append (fcn_name); | |
| 443 fname.append (" (x, xdot, t) y = "); | |
| 444 dasrt_f = extract_function | |
| 445 (f_arg, "dasrt", fcn_name, fname, "; endfunction"); | |
| 446 break; | |
| 3990 | 447 |
| 5729 | 448 case 2: |
| 449 { | |
| 450 string_vector tmp = args(0).all_strings (); | |
| 3990 | 451 |
| 5729 | 452 if (! error_state) |
| 453 { | |
| 454 fcn_name = unique_symbol_name ("__dasrt_fcn__"); | |
| 455 fname = "function y = "; | |
| 456 fname.append (fcn_name); | |
| 457 fname.append (" (x, xdot, t) y = "); | |
| 458 dasrt_f = extract_function | |
| 459 (tmp(0), "dasrt", fcn_name, fname, "; endfunction"); | |
| 3990 | 460 |
| 5729 | 461 if (dasrt_f) |
| 462 { | |
| 463 jac_name = unique_symbol_name ("__dasrt_jac__"); | |
| 464 jname = "function jac = "; | |
| 465 jname.append(jac_name); | |
| 466 jname.append (" (x, xdot, t, cj) jac = "); | |
| 467 dasrt_j = extract_function | |
| 468 (tmp(1), "dasrt", jac_name, jname, "; endfunction"); | |
| 469 | |
| 470 if (! dasrt_j) | |
| 471 dasrt_f = 0; | |
| 472 } | |
| 473 } | |
| 3990 | 474 } |
| 5729 | 475 break; |
| 3990 | 476 |
| 5729 | 477 default: |
| 478 DASRT_ABORT1 | |
| 479 ("first arg should be a string or 2-element string array"); | |
| 480 } | |
| 481 } | |
| 3990 | 482 } |
| 483 | |
| 484 if (error_state || (! dasrt_f)) | |
| 485 DASRT_ABORT; | |
| 486 | |
| 487 DAERTFunc func (dasrt_user_f); | |
| 488 | |
| 489 argp++; | |
| 490 | |
| 5729 | 491 if (args(1).is_function_handle() || args(1).is_inline_function()) |
| 492 { | |
| 493 dasrt_cf = args(1).function_value(); | |
| 494 | |
| 495 if (! dasrt_cf) | |
| 496 DASRT_ABORT1 ("expecting function name as argument 2"); | |
| 497 | |
| 498 argp++; | |
| 499 | |
| 500 func.set_constraint_function (dasrt_user_cf); | |
| 501 } | |
| 502 else if (args(1).is_string ()) | |
| 3990 | 503 { |
| 504 dasrt_cf = is_valid_function (args(1), "dasrt", true); | |
| 505 if (! dasrt_cf) | |
| 3992 | 506 DASRT_ABORT1 ("expecting function name as argument 2"); |
| 3990 | 507 |
| 508 argp++; | |
| 509 | |
| 510 func.set_constraint_function (dasrt_user_cf); | |
| 511 } | |
| 512 | |
| 513 ColumnVector state (args(argp++).vector_value ()); | |
| 514 | |
| 515 if (error_state) | |
| 516 DASRT_ABORT2 ("expecting state vector as argument %d", argp); | |
| 517 | |
| 3992 | 518 ColumnVector stateprime (args(argp++).vector_value ()); |
| 3990 | 519 |
| 520 if (error_state) | |
| 521 DASRT_ABORT2 | |
| 522 ("expecting time derivative of state vector as argument %d", argp); | |
| 523 | |
| 3994 | 524 ColumnVector out_times (args(argp++).vector_value ()); |
| 3990 | 525 |
| 526 if (error_state) | |
| 527 DASRT_ABORT2 | |
| 528 ("expecting output time vector as %s argument %d", argp); | |
| 529 | |
| 3994 | 530 double tzero = out_times (0); |
| 3990 | 531 |
| 532 ColumnVector crit_times; | |
| 533 | |
| 534 bool crit_times_set = false; | |
| 535 | |
| 536 if (argp < nargin) | |
| 537 { | |
| 538 crit_times = ColumnVector (args(argp++).vector_value ()); | |
| 539 | |
| 540 if (error_state) | |
| 541 DASRT_ABORT2 | |
| 542 ("expecting critical time vector as argument %d", argp); | |
| 543 | |
| 544 crit_times_set = true; | |
| 545 } | |
| 546 | |
| 547 if (dasrt_j) | |
| 548 func.set_jacobian_function (dasrt_user_j); | |
| 549 | |
| 550 DASRT_result output; | |
| 551 | |
| 3992 | 552 DASRT dae = DASRT (state, stateprime, tzero, func); |
| 3990 | 553 |
| 4122 | 554 dae.set_options (dasrt_opts); |
| 3990 | 555 |
| 556 if (crit_times_set) | |
| 557 output = dae.integrate (out_times, crit_times); | |
| 558 else | |
| 559 output = dae.integrate (out_times); | |
| 560 | |
| 5729 | 561 if (fcn_name.length()) |
| 562 clear_function (fcn_name); | |
| 563 if (jac_name.length()) | |
| 564 clear_function (jac_name); | |
| 565 | |
| 3990 | 566 if (! error_state) |
| 567 { | |
| 3997 | 568 std::string msg = dae.error_message (); |
| 569 | |
| 570 retval(4) = msg; | |
| 571 retval(3) = static_cast<double> (dae.integration_state ()); | |
| 572 | |
| 573 if (dae.integration_ok ()) | |
| 574 { | |
| 575 retval(2) = output.times (); | |
| 576 retval(1) = output.deriv (); | |
| 577 retval(0) = output.state (); | |
| 578 } | |
| 579 else | |
| 580 { | |
| 581 retval(2) = Matrix (); | |
| 582 retval(1) = Matrix (); | |
| 583 retval(0) = Matrix (); | |
| 584 | |
| 585 if (nargout < 4) | |
| 586 error ("dasrt: %s", msg.c_str ()); | |
| 587 } | |
| 3990 | 588 } |
| 589 | |
| 590 unwind_protect::run_frame ("Fdasrt"); | |
| 591 | |
| 592 return retval; | |
| 593 } | |
| 594 | |
| 595 /* | |
| 596 ;;; Local Variables: *** | |
| 597 ;;; mode: C++ *** | |
| 598 ;;; End: *** | |
| 599 */ |