Mercurial > octave
annotate scripts/ode/ode15i.m @ 22910:23847979b91e
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author | John W. Eaton <jwe@octave.org> |
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date | Fri, 16 Dec 2016 10:20:35 -0500 |
parents | 284bbb0328f2 |
children | dec22bceafa2 |
rev | line source |
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1 ## Copyright (C) 2016, Francesco Faccio <francesco.faccio@mail.polimi.it> |
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2 ## |
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3 ## This file is part of Octave. |
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4 ## |
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5 ## Octave is free software; you can redistribute it and/or modify it |
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6 ## under the terms of the GNU General Public License as published by |
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7 ## the Free Software Foundation; either version 3 of the License, or (at |
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8 ## your option) any later version. |
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9 ## |
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10 ## Octave is distributed in the hope that it will be useful, but |
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11 ## WITHOUT ANY WARRANTY; without even the implied warranty of |
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12 ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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13 ## General Public License for more details. |
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14 ## |
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15 ## You should have received a copy of the GNU General Public License |
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16 ## along with Octave; see the file COPYING. If not, see |
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17 ## <http://www.gnu.org/licenses/>. |
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18 |
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19 ## -*- texinfo -*- |
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20 ## @deftypefn {} {[@var{t}, @var{y}] =} ode15i (@var{fun}, @var{trange}, @var{y0}, @var{yp0}) |
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21 ## @deftypefnx {} {[@var{t}, @var{y}] =} ode15i (@var{fun}, @var{trange}, @var{y0}, @var{yp0}, @var{ode_opt}) |
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22 ## @deftypefnx {} {[@var{t}, @var{y}, @var{te}, @var{ye}, @var{ie}] =} ode15i (@dots{}) |
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23 ## @deftypefnx {} {@var{solution} =} ode15i (@dots{}) |
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24 ## |
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25 ## Solve a set of full-implicit Ordinary Differential Equations and |
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26 ## Differential Algebraic Equations (DAEs) of index 1, with the variable-step, |
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27 ## variable order BDF (Backward Differentiation Formula) method, which |
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28 ## ranges from order 1 to 5. |
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29 ## |
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30 ## @var{fun} is a function handle, inline function, or string containing the |
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31 ## name of the function that defines the ODE: @code{f(@var{t},@var{y},@var{yp})}. |
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32 ## The function must accept three inputs where the first is time @var{t}, the |
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33 ## second is a column vector of unknowns @var{y} and the third is a column |
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34 ## vector of unknowns @var{yp}. |
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35 ## |
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36 ## @var{trange} specifies the time interval over which the ODE will be |
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37 ## evaluated. Typically, it is a two-element vector specifying the initial and |
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38 ## final times (@code{[tinit, tfinal]}). If there are more than two elements |
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39 ## then the solution will also be evaluated at these intermediate time. |
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40 ## |
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41 ## @var{y0} and @var{yp0} contain the initial values for the unknowns @var{y} |
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42 ## and @var{yp}. If they are row vectors then the solution @var{y} will be a |
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43 ## matrix in which each column is the solution for the corresponding initial |
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44 ## value in @var{y0} and @var{yp0}. |
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45 ## |
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46 ## @var{y0} and @var{yp0} must be consistent initial conditions, meaning that |
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47 ## @code{f(@var{t},@var{y0},@var{yp0})=0} is satisfied. You can use function |
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48 ## decic to compute consistent initial conditions, given initial guesses. |
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49 ## |
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50 ## The optional fifth argument @var{ode_opt} specifies non-default options to |
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51 ## the ODE solver. It is a structure generated by @code{odeset}. |
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52 ## |
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53 ## The function typically returns two outputs. Variable @var{t} is a |
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54 ## column vector and contains the times where the solution was found. The |
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55 ## output @var{y} is a matrix in which each column refers to a different |
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56 ## unknown of the problem and each row corresponds to a time in @var{t}. |
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57 ## |
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58 ## The output can also be returned as a structure @var{solution} which |
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59 ## has field @var{x} containing the time where the solution was evaluated and |
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60 ## field @var{y} containing the solution matrix for the times in @var{x}. |
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61 ## Use @code{fieldnames (@var{solution})} to see the other fields and |
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62 ## additional information returned. |
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63 ## |
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64 ## If using the @qcode{"Events"} option then three additional outputs may |
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65 ## be returned. @var{te} holds the time when an Event function returned a |
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66 ## zero. @var{ye} holds the value of the solution at time @var{te}. @var{ie} |
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67 ## contains an index indicating which Event function was triggered in the case |
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68 ## of multiple Event functions. |
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69 ## |
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70 ## This function can be called with two output arguments: @var{t} and @var{y}. |
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71 ## Variable @var{t} is a column vector and contains the time stamps, instead |
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72 ## @var{y} is a matrix in which each column refers to a different unknown of |
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73 ## the problem and the rows number is the same of @var{t} rows number so |
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74 ## that each row of @var{y} contains the values of all unknowns at the time |
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75 ## value contained in the corresponding row in @var{t}. |
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76 ## |
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77 ## Example: Solve the @nospell{Robetson}'s equations: |
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78 ## |
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79 ## @example |
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80 ## @group |
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81 ## function res = robertsidae(@var{t}, @var{y}, @var{yp}) |
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82 ## res = [-(@var{yp}(1) + 0.04*@var{y}(1) - 1e4*@var{y}(2)*@var{y}(3)); |
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83 ## -(@var{yp}(2) - 0.04*@var{y}(1) + 1e4*@var{y}(2)*@var{y}(3) + |
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84 ## 3e7*@var{y}(2)^2); |
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85 ## @var{y}(1) + @var{y}(2) + @var{y}(3) - 1]; |
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86 ## endfunction |
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87 ## [@var{t},@var{y}] = ode15i (@@robertsidae, [0 1e3], [1; 0; 0],[-1e-4; 1e-4; 0]); |
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88 ## @end group |
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89 ## @end example |
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90 ## @seealso{decic, odeset, odeget} |
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91 ## @end deftypefn |
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92 |
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93 function varargout = ode15i (fun, trange, y0, yp0, varargin) |
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94 |
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95 solver = 'ode15i'; |
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96 |
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97 if (nargin < 4) |
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98 print_usage (); |
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99 endif |
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100 |
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101 n = numel (y0); |
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102 |
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Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
103 if (nargin > 4) |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
104 options = varargin{1}; |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
105 else |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
106 options = odeset (); |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
107 endif |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
108 |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
109 ## Check fun, trange, y0, yp0 |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
110 fun = check_default_input (fun, trange, solver, y0, yp0); |
22910
23847979b91e
maint: Strip trailing whitespace from source files.
John W. Eaton <jwe@octave.org>
parents:
22902
diff
changeset
|
111 |
22901
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
112 if (! isempty (options.Jacobian)) |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
113 if (ischar (options.Jacobian)) |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
114 try |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
115 options.Jacobian = str2func (options.Jacobian); |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
116 catch |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
117 warning (lasterr); |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
118 end_try_catch |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
119 if (! isa (options.Jacobian, "function_handle")) |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
120 error ("Octave:invalid-input-arg", |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
121 [solver ": invalid value assigned to field '%s'"], "Jacobian"); |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
122 endif |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
123 endif |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
124 endif |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
125 |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
126 if (! isempty (options.OutputFcn)) |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
127 if (ischar (options.OutputFcn)) |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
128 try |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
129 options.OutputFcn = str2func (options.OutputFcn); |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
130 catch |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
131 warning (lasterr); |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
132 end_try_catch |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
133 if (! isa (options.OutputFcn, "function_handle")) |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
134 error ("Octave:invalid-input-arg", |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
135 [solver ": invalid value assigned to field '%s'"], "OutputFcn"); |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
136 endif |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
137 endif |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
138 endif |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
139 |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
140 if (! isempty (options.Events)) |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
141 if (ischar (options.Events)) |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
142 try |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
143 options.Events = str2func (options.Events); |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
144 catch |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
145 warning (lasterr); |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
146 end_try_catch |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
147 if (! isa (options.Events, "function_handle") && ! ismatrix (options.Events)) |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
148 error ("Octave:invalid-input-arg", |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
149 [solver ": invalid value assigned to field '%s'"], "Events"); |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
150 endif |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
151 endif |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
152 endif |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
153 |
22902
284bbb0328f2
Update odei5{i,s} code for Octave 4.3.0+ and Sundials 2.7.0.
Carlo de Falco <carlo.defalco@polimi.it>
parents:
22901
diff
changeset
|
154 [defaults, classes, attributes] = ... |
284bbb0328f2
Update odei5{i,s} code for Octave 4.3.0+ and Sundials 2.7.0.
Carlo de Falco <carlo.defalco@polimi.it>
parents:
22901
diff
changeset
|
155 odedefaults (n, trange(1), trange(end)); |
22901
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
156 |
22902
284bbb0328f2
Update odei5{i,s} code for Octave 4.3.0+ and Sundials 2.7.0.
Carlo de Falco <carlo.defalco@polimi.it>
parents:
22901
diff
changeset
|
157 persistent ignorefields = {"NonNegative", "Mass", ... |
284bbb0328f2
Update odei5{i,s} code for Octave 4.3.0+ and Sundials 2.7.0.
Carlo de Falco <carlo.defalco@polimi.it>
parents:
22901
diff
changeset
|
158 "MStateDependence", "MvPattern", ... |
284bbb0328f2
Update odei5{i,s} code for Octave 4.3.0+ and Sundials 2.7.0.
Carlo de Falco <carlo.defalco@polimi.it>
parents:
22901
diff
changeset
|
159 "MassSingular", "InitialSlope", "BDF"}; |
22910
23847979b91e
maint: Strip trailing whitespace from source files.
John W. Eaton <jwe@octave.org>
parents:
22902
diff
changeset
|
160 |
22902
284bbb0328f2
Update odei5{i,s} code for Octave 4.3.0+ and Sundials 2.7.0.
Carlo de Falco <carlo.defalco@polimi.it>
parents:
22901
diff
changeset
|
161 defaults = rmfield (defaults, ignorefields); |
284bbb0328f2
Update odei5{i,s} code for Octave 4.3.0+ and Sundials 2.7.0.
Carlo de Falco <carlo.defalco@polimi.it>
parents:
22901
diff
changeset
|
162 classes = rmfield (classes, ignorefields); |
284bbb0328f2
Update odei5{i,s} code for Octave 4.3.0+ and Sundials 2.7.0.
Carlo de Falco <carlo.defalco@polimi.it>
parents:
22901
diff
changeset
|
163 attributes = rmfield (attributes, ignorefields); |
22901
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
164 |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
165 classes = odeset (classes, 'Vectorized', {}); |
22902
284bbb0328f2
Update odei5{i,s} code for Octave 4.3.0+ and Sundials 2.7.0.
Carlo de Falco <carlo.defalco@polimi.it>
parents:
22901
diff
changeset
|
166 attributes = ... |
284bbb0328f2
Update odei5{i,s} code for Octave 4.3.0+ and Sundials 2.7.0.
Carlo de Falco <carlo.defalco@polimi.it>
parents:
22901
diff
changeset
|
167 odeset (attributes, 'Jacobian', {}, 'Vectorized', {}); |
22901
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
168 |
22902
284bbb0328f2
Update odei5{i,s} code for Octave 4.3.0+ and Sundials 2.7.0.
Carlo de Falco <carlo.defalco@polimi.it>
parents:
22901
diff
changeset
|
169 options = ... |
284bbb0328f2
Update odei5{i,s} code for Octave 4.3.0+ and Sundials 2.7.0.
Carlo de Falco <carlo.defalco@polimi.it>
parents:
22901
diff
changeset
|
170 odemergeopts ("ode15i", options, defaults, |
284bbb0328f2
Update odei5{i,s} code for Octave 4.3.0+ and Sundials 2.7.0.
Carlo de Falco <carlo.defalco@polimi.it>
parents:
22901
diff
changeset
|
171 classes, attributes, solver); |
22901
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
172 |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
173 ## Jacobian |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
174 options.havejac = false; |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
175 options.havejacsparse = false; |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
176 options.havejacfun = false; |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
177 |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
178 if (! isempty (options.Jacobian)) |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
179 options.havejac = true; |
22910
23847979b91e
maint: Strip trailing whitespace from source files.
John W. Eaton <jwe@octave.org>
parents:
22902
diff
changeset
|
180 if (iscell (options.Jacobian)) |
22901
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
181 if (numel (options.Jacobian) == 2) |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
182 if (issparse (options.Jacobian{1}) && issparse (options.Jacobian{2})) ## Jac is sparse cell |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
183 options.havejacsparse = true; |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
184 endif |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
185 |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
186 if (any (size (options.Jacobian{1}) != [n n]) |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
187 || any (size (options.Jacobian{2}) != [n n]) |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
188 || ! isnumeric (options.Jacobian{1}) |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
189 || ! isnumeric (options.Jacobian{2}) |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
190 || ! isreal (options.Jacobian{1}) |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
191 || ! isreal (options.Jacobian{2})) |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
192 error ("Octave:invalid-input-arg", |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
193 [solver ": invalid value assigned to field '%s'"], "Jacobian"); |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
194 endif |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
195 else |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
196 error ("Octave:invalid-input-arg", |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
197 [solver ": invalid value assigned to field '%s'"], "Jacobian"); |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
198 endif |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
199 |
22910
23847979b91e
maint: Strip trailing whitespace from source files.
John W. Eaton <jwe@octave.org>
parents:
22902
diff
changeset
|
200 elseif (isa (options.Jacobian, "function_handle")) |
22901
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
201 options.havejacfun = true; |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
202 if (nargin (options.Jacobian) == 3) |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
203 [A, B] = options.Jacobian (trange(1), y0, yp0); |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
204 if (issparse (A) && issparse (B)) |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
205 options.havejacsparse = true; ## Jac is sparse fun |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
206 endif |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
207 |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
208 if (any (size (A) != [n n]) || any (size (B) != [n n]) |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
209 || ! isnumeric (A) || ! isnumeric (B) || ! isreal (A) |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
210 || ! isreal (B)) |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
211 error ("Octave:invalid-input-arg", |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
212 [solver ": invalid value assigned to field '%s'"], "Jacobian"); |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
213 endif |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
214 else |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
215 error ("Octave:invalid-input-arg", |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
216 [solver ": invalid value assigned to field '%s'"], "Jacobian"); |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
217 endif |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
218 else |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
219 error ("Octave:invalid-input-arg", |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
220 [solver ": invalid value assigned to field '%s'"], "Jacobian"); |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
221 endif |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
222 endif |
22910
23847979b91e
maint: Strip trailing whitespace from source files.
John W. Eaton <jwe@octave.org>
parents:
22902
diff
changeset
|
223 |
22901
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
224 ## Abstol and Reltol |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
225 |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
226 options.haveabstolvec = false; |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
227 |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
228 if (numel (options.AbsTol) != 1 && numel (options.AbsTol) != n) |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
229 error ("Octave:invalid-input-arg", |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
230 [solver ": invalid value assigned to field '%s'"], "AbsTol"); |
22910
23847979b91e
maint: Strip trailing whitespace from source files.
John W. Eaton <jwe@octave.org>
parents:
22902
diff
changeset
|
231 |
22901
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
232 elseif (numel (options.AbsTol) == n) |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
233 options.haveabstolvec = true; |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
234 endif |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
235 |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
236 ## Stats |
22910
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maint: Strip trailing whitespace from source files.
John W. Eaton <jwe@octave.org>
parents:
22902
diff
changeset
|
237 options.havestats = false; |
22901
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
238 if (strcmp (options.Stats, "on")) |
22910
23847979b91e
maint: Strip trailing whitespace from source files.
John W. Eaton <jwe@octave.org>
parents:
22902
diff
changeset
|
239 options.havestats = true; |
22901
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
240 endif |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
241 |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
242 ## Don't use Refine when the output is a structure |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
243 if (nargout == 1) |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
244 options.Refine = 1; |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
245 endif |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
246 |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
247 ## OutputFcn and OutputSel |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
248 if (isempty (options.OutputFcn) && nargout == 0) |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
249 options.OutputFcn = @odeplot; |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
250 options.haveoutputfunction = true; |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
251 else |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
252 options.haveoutputfunction = ! isempty (options.OutputFcn); |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
253 endif |
22910
23847979b91e
maint: Strip trailing whitespace from source files.
John W. Eaton <jwe@octave.org>
parents:
22902
diff
changeset
|
254 |
22901
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
255 options.haveoutputselection = ! isempty (options.OutputSel); |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
256 if (options.haveoutputselection) |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
257 options.OutputSel = options.OutputSel - 1; |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
258 endif |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
259 |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
260 ## Events |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
261 options.haveeventfunction = ! isempty (options.Events); |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
262 |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
263 |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
264 [t, y, te, ye, ie] = __ode15__ (fun, trange, y0, yp0, options); |
22910
23847979b91e
maint: Strip trailing whitespace from source files.
John W. Eaton <jwe@octave.org>
parents:
22902
diff
changeset
|
265 |
22901
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
266 |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
267 if (nargout == 2) |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
268 varargout{1} = t; |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
269 varargout{2} = y; |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
270 elseif (nargout == 1) |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
271 varargout{1}.x = t; # Time stamps are saved in field x |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
272 varargout{1}.y = y; # Results are saved in field y |
22910
23847979b91e
maint: Strip trailing whitespace from source files.
John W. Eaton <jwe@octave.org>
parents:
22902
diff
changeset
|
273 varargout{1}.solver = solver; |
22901
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
274 if (options.haveeventfunction) |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
275 varargout{1}.xe = te; # Time info when an event occurred |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
276 varargout{1}.ye = ye; # Results when an event occurred |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
277 varargout{1}.ie = ie; # Index info which event occurred |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
278 endif |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
279 elseif (nargout == 5) |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
280 varargout = cell (1,5); |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
281 varargout{1} = t; |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
282 varargout{2} = y; |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
283 if (options.haveeventfunction) |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
284 varargout{3} = te; # Time info when an event occurred |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
285 varargout{4} = ye; # Results when an event occurred |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
286 varargout{5} = ie; # Index info which event occurred |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
287 endif |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
288 endif |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
289 |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
290 endfunction |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
291 |
22910
23847979b91e
maint: Strip trailing whitespace from source files.
John W. Eaton <jwe@octave.org>
parents:
22902
diff
changeset
|
292 %!demo |
23847979b91e
maint: Strip trailing whitespace from source files.
John W. Eaton <jwe@octave.org>
parents:
22902
diff
changeset
|
293 %! |
22901
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
294 %! ##Solve Robertson's equations with ode15i |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
295 %! fun = @ (t, y, yp) [-(yp(1) + 0.04*y(1) - 1e4*y(2)*y(3)); |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
296 %! -(yp(2) - 0.04*y(1) + 1e4*y(2)*y(3) + 3e7*y(2)^2); |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
297 %! y(1) + y(2) + y(3) - 1]; |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
298 %! |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
299 %! opt = odeset ('RelTol',1e-4, 'AbsTol', [1e-8, 1e-14, 1e-6]); |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
300 %! y0 = [1; 0; 0]; |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
301 %! yp0 = [-1e-4; 1e-4; 0]; |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
302 %! tspan = [0 4*logspace(-6, 6)]; |
22910
23847979b91e
maint: Strip trailing whitespace from source files.
John W. Eaton <jwe@octave.org>
parents:
22902
diff
changeset
|
303 %! |
22901
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
304 %! [t, y] = ode15i (fun, tspan, y0, yp0, opt); |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
305 %! |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
306 %! y (:,2) = 1e4 * y (:, 2); |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
307 %! figure (2); |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
308 %! semilogx (t, y, 'o') |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
309 %! xlabel ('time'); |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
310 %! ylabel ('species concentration'); |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
311 %! title ('Robertson DAE problem with a Conservation Law'); |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
312 %! legend ('y1', 'y2', 'y3'); |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
313 |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
314 %!function res = rob (t, y, yp) |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
315 %! res =[-(yp(1) + 0.04*y(1) - 1e4*y(2)*y(3)); |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
316 %! -(yp(2) - 0.04*y(1) + 1e4*y(2)*y(3) + 3e7*y(2)^2); |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
317 %! y(1) + y(2) + y(3) - 1]; |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
318 %!endfunction |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
319 %! |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
320 %!function ref = fref() |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
321 %! ref = [100, 0.617234887614937, 0.000006153591397, 0.382758958793666]; |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
322 %!endfunction |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
323 %! |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
324 %!function ref2 = fref2() |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
325 %! ref2 = [4e6 0 0 1]; |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
326 %!endfunction |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
327 %! |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
328 %!function [DFDY, DFDYP] = jacfundense(t, y, yp) |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
329 %! DFDY = [-0.04, 1e4*y(3), 1e4*y(2); |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
330 %! 0.04, -1e4*y(3)-6e7*y(2), -1e4*y(2); |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
331 %! 1, 1, 1]; |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
332 %! DFDYP = [-1, 0, 0; |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
333 %! 0, -1, 0; |
22910
23847979b91e
maint: Strip trailing whitespace from source files.
John W. Eaton <jwe@octave.org>
parents:
22902
diff
changeset
|
334 %! 0, 0, 0]; |
22901
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
335 %!endfunction |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
336 %! |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
337 %!function [DFDY, DFDYP] = jacfunsparse(t, y, yp) |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
338 %! DFDY = sparse ([-0.04, 1e4*y(3), 1e4*y(2); |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
339 %! 0.04, -1e4*y(3)-6e7*y(2), -1e4*y(2); |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
340 %! 1, 1, 1]); |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
341 %! DFDYP = sparse ([-1, 0, 0; |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
342 %! 0, -1, 0; |
22910
23847979b91e
maint: Strip trailing whitespace from source files.
John W. Eaton <jwe@octave.org>
parents:
22902
diff
changeset
|
343 %! 0, 0, 0]); |
22901
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
344 %!endfunction |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
345 %!function [DFDY, DFDYP] = jacwrong(t, y, yp) |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
346 %! DFDY = [-0.04, 1e4*y(3); |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
347 %! 0.04, -1e4*y(3)-6e7*y(2)]; |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
348 %! DFDYP = [-1, 0; |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
349 %! 0, -1]; |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
350 %!endfunction |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
351 %!function [DFDY, DFDYP, A] = jacwrong2(t, y, yp) |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
352 %! DFDY = [-0.04, 1e4*y(3), 1e4*y(2); |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
353 %! 0.04, -1e4*y(3)-6e7*y(2), -1e4*y(2); |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
354 %! 1, 1, 1]; |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
355 %! DFDYP = [-1, 0, 0; |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
356 %! 0, -1, 0; |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
357 %! 0, 0, 0]; |
22910
23847979b91e
maint: Strip trailing whitespace from source files.
John W. Eaton <jwe@octave.org>
parents:
22902
diff
changeset
|
358 %! A = DFDY; |
22901
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
359 %!endfunction |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
360 %!function [val, isterminal, direction] = ff (t, y, yp) |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
361 %! isterminal = [0 1]; |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
362 %! if (t < 1e1) |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
363 %! val = [-1, -2]; |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
364 %! else |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
365 %! val = [1 3]; |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
366 %! endif |
22910
23847979b91e
maint: Strip trailing whitespace from source files.
John W. Eaton <jwe@octave.org>
parents:
22902
diff
changeset
|
367 %! |
22901
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
368 %! direction = [1 0]; |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
369 %!endfunction |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
370 |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
371 %!test # anonymous function instead of real function |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
372 %! ref = [0.049787079136413]; |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
373 %! ff = @(t, u, udot) udot + 3 * u; |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
374 %! [t, y] = ode15i (ff, 0:1, 1, -3); |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
375 %! assert ([t(end), y(end)], [1, ref], 1e-3); |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
376 %!test # function passed as string |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
377 %! [t, y] = ode15i ('rob',[0 100 200], [1;0;0], [-1e-4;1e-4;0]); |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
378 %! assert ([t(2), y(2,:)], fref, 1e-3); |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
379 %!test # solve in intermidiate step |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
380 %! [t, y] = ode15i (@rob,[0 100 200], [1;0;0], [-1e-4;1e-4;0]); |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
381 %! assert ([t(2), y(2,:)], fref, 1e-3); |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
382 %!test # numel(trange) = 2 final value |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
383 %! [t, y] = ode15i (@rob,[0 100], [1;0;0], [-1e-4;1e-4;0]); |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
384 %! assert ([t(end), y(end,:)], fref, 1e-5); |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
385 %!test # With empty options |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
386 %! opt = odeset(); |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
387 %! [t, y] = ode15i (@rob,[0 1e6 2e6 3e6 4e6], [1;0;0], [-1e-4;1e-4;0], opt); |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
388 %! assert ([t(end), y(end,:)], fref2, 1e-3); |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
389 %! opt = odeset(); |
22910
23847979b91e
maint: Strip trailing whitespace from source files.
John W. Eaton <jwe@octave.org>
parents:
22902
diff
changeset
|
390 %!test # Without options |
22901
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
391 %! [t, y] = ode15i (@rob,[0 1e6 2e6 3e6 4e6], [1;0;0], [-1e-4;1e-4;0]); |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
392 %! assert ([t(end), y(end,:)], fref2, 1e-3); |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
393 %!test # InitialStep option |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
394 %! opt = odeset ("InitialStep", 1e-8); |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
395 %! [t, y] = ode15i (@rob,[0 100], [1;0;0], [-1e-4;1e-4;0], opt); |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
396 %! assert ([t(2)-t(1)], [1e-8], 1e-9); |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
397 %!test # MaxStep option |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
398 %! opt = odeset ("MaxStep", 1e-3); |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
399 %! [t, y] = ode15i (@rob,[0 100], [1;0;0], [-1e-4;1e-4;0]); |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
400 %! assert ([t(5)-t(4)], [1e-3], 1e-3); |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
401 %!test # AbsTol scalar option |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
402 %! opt = odeset ("AbsTol", 1e-8); |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
403 %! [t, y] = ode15i (@rob,[0 100], [1;0;0], [-1e-4;1e-4;0], opt); |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
404 %! assert ([t(end), y(end,:)], fref, 1e-3); |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
405 %!test # AbsTol scalar and RelTol option |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
406 %! opt = odeset ("AbsTol", 1e-8, "RelTol", 1e-6); |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
407 %! [t, y] = ode15i (@rob,[0 100], [1;0;0], [-1e-4;1e-4;0], opt); |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
408 %! assert ([t(end), y(end,:)], fref, 1e-3); |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
409 %!test # AbsTol vector option |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
410 %! opt = odeset ("AbsTol", [1e-8, 1e-14,1e-6]); |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
411 %! [t, y] = ode15i (@rob,[0 100], [1;0;0], [-1e-4;1e-4;0], opt); |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
412 %! assert ([t(end), y(end,:)], fref, 1e-3); |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
413 %!test # AbsTol vector and RelTol option |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
414 %! opt = odeset ("AbsTol", [1e-8, 1e-14,1e-6], "RelTol", 1e-6); |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
415 %! [t, y] = ode15i (@rob,[0 100], [1;0;0], [-1e-4;1e-4;0], opt); |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
416 %! assert ([t(end), y(end,:)], fref, 1e-3); |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
417 %!test # RelTol option |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
418 %! opt = odeset ("RelTol", 1e-6); |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
419 %! [t, y] = ode15i (@rob,[0 100], [1;0;0], [-1e-4;1e-4;0], opt); |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
420 %! assert ([t(end), y(end,:)], fref, 1e-3); |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
421 %!test # Jacobian fun dense |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
422 %! opt = odeset ("Jacobian", @jacfundense); |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
423 %! [t, y] = ode15i (@rob,[0 100], [1;0;0], [-1e-4;1e-4;0], opt); |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
424 %! assert ([t(end), y(end,:)], fref, 1e-3); |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
425 %!test # Jacobian fun dense as string |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
426 %! opt = odeset ("Jacobian", 'jacfundense'); |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
427 %! [t, y] = ode15i (@rob,[0 100], [1;0;0], [-1e-4;1e-4;0], opt); |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
428 %! assert ([t(end), y(end,:)], fref, 1e-3); |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
429 %!test # Jacobian fun sparse |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
430 %! opt = odeset ("Jacobian", @jacfunsparse, "AbsTol", 1e-7, "RelTol", 1e-7); |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
431 %! [t, y] = ode15i (@rob,[0 100], [1;0;0], [-1e-4;1e-4;0], opt); |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
432 %! assert ([t(end), y(end,:)], fref, 1e-3); |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
433 %!test # Solve in backward direction starting at t=100 |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
434 %! YPref = [-0.001135972751027; -0.000000027483627; 0.001136000234654]; |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
435 %! Yref = [0.617234887614937, 0.000006153591397, 0.382758958793666]; |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
436 %! [t, y] = ode15i (@rob,[0 100], [1;0;0], [-1e-4;1e-4;0]); |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
437 %! [t2, y2] = ode15i (@rob,[100 0], Yref', YPref); |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
438 %! assert ([t2(end), y2(end,:)], [0 1 0 0], 2e-2); |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
439 #%!test # Solve in backward direction with MaxStep option |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
440 %! YPref = [-0.001135972751027; -0.000000027483627; 0.001136000234654]; |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
441 %! Yref = [0.617234887614937, 0.000006153591397, 0.382758958793666]; |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
442 %! opt = odeset ('MaxStep', 1e-2); |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
443 %! [t, y] = ode15i (@rob,[0 100], [1;0;0], [-1e-4;1e-4;0]); |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
444 %! [t2, y2] = ode15i (@rob,[100 0], Yref', YPref, opt); |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
445 %! assert ([t2(end), y2(end,:)], [0 1 0 0], 2e-2); |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
446 %! assert ([t2(9)-t2(10)], [1e-2], 1e-2); |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
447 #%!test # Solve in backward direction starting with intermidiate step |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
448 %! YPref = [-0.001135972751027; -0.000000027483627; 0.001136000234654]; |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
449 %! Yref = [0.617234887614937, 0.000006153591397, 0.382758958793666]; |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
450 %! [t, y] = ode15i (@rob,[0 100], [1;0;0], [-1e-4;1e-4;0]); |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
451 %! [t2, y2] = ode15i (@rob,[100 5 0], Yref', YPref); |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
452 %! assert ([t2(end), y2(end,:)], [0 1 0 0], 2e-2); |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
453 %!test # Refine |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
454 %! opt = odeset ("Refine", 3); |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
455 %! [t, y] = ode15i (@rob,[0 100], [1;0;0], [-1e-4;1e-4;0]); |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
456 %! [t2, y2] = ode15i (@rob,[0 100], [1;0;0], [-1e-4;1e-4;0], opt); |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
457 %! assert ([numel(t2)], numel(t)*3, 3); |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
458 %!test # Refine ignored if numel (trange) > 2 |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
459 %! opt = odeset ("Refine", 3); |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
460 %! [t, y] = ode15i (@rob,[0 10 100], [1;0;0], [-1e-4;1e-4;0]); |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
461 %! [t2, y2] = ode15i (@rob,[0 10 100], [1;0;0], [-1e-4;1e-4;0], opt); |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
462 %! assert ([numel(t2)], numel(t)); |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
463 %!test # Events option add further elements in sol |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
464 %! opt = odeset ("Events", @ff); |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
465 %! sol = ode15i (@rob,[0 100], [1;0;0], [-1e-4;1e-4;0], opt); |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
466 %! assert (isfield (sol, "ie")); |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
467 %! assert (sol.ie, [0;1]); |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
468 %! assert (isfield (sol, "xe")); |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
469 %! assert (isfield (sol, "ye")); |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
470 %! assert (sol.x(end), 10, 1); |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
471 %!test # Events option, five output arguments |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
472 %! opt = odeset ("Events", @ff); |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
473 %! [t, y, te, ye, ie] = ode15i (@rob,[0 100], [1;0;0], [-1e-4;1e-4;0], opt); |
22910
23847979b91e
maint: Strip trailing whitespace from source files.
John W. Eaton <jwe@octave.org>
parents:
22902
diff
changeset
|
474 %! assert ([t(end), te', ie'], [10, 10, 10, 0, 1], [1, 0.2, 0.2, 0, 0]); |
22901
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
475 |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
476 %!error # Jacobian fun wrong dimension |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
477 %! opt = odeset ("Jacobian", @jacwrong); |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
478 %! [t, y] = ode15i (@rob,[0 4e6], [1;0;0], [-1e-4;1e-4;0], opt); |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
479 %!error # Jacobian cell dense wrong dimension |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
480 %! DFDY = [-0.04, 1; |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
481 %! 0.04, 1]; |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
482 %! DFDYP = [-1, 0, 0; |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
483 %! 0, -1, 0; |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
484 %! 0, 0, 0]; |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
485 %! opt = odeset ("Jacobian", {DFDY, DFDYP}); |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
486 %! [t, y] = ode15i (@rob,[0 4e6], [1;0;0], [-1e-4;1e-4;0], opt); |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
487 %!error # Jacobian cell sparse wrong dimension |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
488 %! DFDY = sparse ([-0.04, 1; |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
489 %! 0.04, 1]); |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
490 %! DFDYP = sparse ([-1, 0, 0; |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
491 %! 0, -1, 0; |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
492 %! 0, 0, 0]); |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
493 %! opt = odeset ("Jacobian", {DFDY, DFDYP}); |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
494 %! [t, y] = ode15i (@rob,[0 4e6], [1;0;0], [-1e-4;1e-4;0], opt); |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
495 %!error # Jacobian cell wrong number of matrices |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
496 %! A = [1 2 3; 4 5 6; 7 8 9]; |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
497 %! opt = odeset ("Jacobian", {A,A,A}); |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
498 %! [t, y] = ode15i (@rob,[0 4e6], [1;0;0], [-1e-4;1e-4;0], opt); |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
499 %!error # Jacobian single matrix |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
500 %! opt = odeset ("Jacobian", [1 2 3; 4 5 6; 7 8 9]); |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
501 %! [t, y] = ode15i (@rob,[0 4e6], [1;0;0], [-1e-4;1e-4;0], opt); |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
502 %!error # Jacobian single matrix wrong dimension |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
503 %! opt = odeset ("Jacobian", [1 2 3; 4 5 6]); |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
504 %! [t, y] = ode15i (@rob,[0 4e6], [1;0;0], [-1e-4;1e-4;0], opt); |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
505 %!error # Jacobian strange field |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
506 %! opt = odeset ("Jacobian", "foo"); |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
507 %! [t, y] = ode15i (@rob,[0 4e6], [1;0;0], [-1e-4;1e-4;0], opt); |
22910
23847979b91e
maint: Strip trailing whitespace from source files.
John W. Eaton <jwe@octave.org>
parents:
22902
diff
changeset
|
508 %!function ydot = fun (t, y, yp) |
22901
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
509 %! ydot = [y - yp]; |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
510 %!endfunction |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
511 %!error ode15i (); |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
512 %!error ode15i (1); |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
513 %!error ode15i (1, 1, 1); |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
514 %!error ode15i (1, 1, 1); |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
515 %!error ode15i (1, 1, 1, 1); |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
516 %!error ode15i (1, 1, 1, 1, 1); |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
517 %!error ode15i (1, 1, 1, 1, 1, 1); |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
518 %!error ode15i (@fun, 1, 1, 1); |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
519 %!error ode15i (@fun, [1, 1], 1, 1); |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
520 %!error ode15i (@fun, [1, 2], [1], [1, 2]); |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
521 %!error |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
522 %! opt = odeset ('RelTol', "foo"); |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
523 %! [t, y] = ode15i (@fun, [0 2], [2], [2], opt); |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
524 %!error |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
525 %! opt = odeset ('RelTol', [1, 2]); |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
526 %! [t, y] = ode15i (@fun, [0 2], [2], [2], opt); |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
527 %!error |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
528 %! opt = odeset ('RelTol', -2); |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
529 %! [t, y] = ode15i (@fun, [0 2], [2], [2], opt); |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
530 %!error |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
531 %! opt = odeset ('AbsTol', "foo"); |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
532 %! [t, y] = ode15i (@fun, [0 2], [2], [2], opt); |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
533 %!error |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
534 %! opt = odeset ('AbsTol', -1); |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
535 %! [t, y] = ode15i (@fun, [0 2], [2], [2], opt); |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
536 %!error |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
537 %! opt = odeset ('AbsTol', [1, 1, 1]); |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
538 %! [t, y] = ode15i (@fun, [0 2], [2], [2], opt); |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
539 |
4c56f3ffec04
Add functions ode15i and ode15s
Francesco Faccio <francesco.faccio@mail.polimi.it>
parents:
diff
changeset
|
540 |