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1 // DAE.h -*- C++ -*- |
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2 /* |
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3 |
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4 Copyright (C) 1992, 1993 John W. Eaton |
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5 |
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6 This file is part of Octave. |
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7 |
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8 Octave is free software; you can redistribute it and/or modify it |
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9 under the terms of the GNU General Public License as published by the |
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10 Free Software Foundation; either version 2, or (at your option) any |
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11 later version. |
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12 |
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13 Octave is distributed in the hope that it will be useful, but WITHOUT |
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14 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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15 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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16 for more details. |
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17 |
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18 You should have received a copy of the GNU General Public License |
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19 along with Octave; see the file COPYING. If not, write to the Free |
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20 Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. |
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21 |
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22 */ |
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23 |
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24 #if !defined (_DAE_h) |
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25 #define _DAE_h 1 |
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26 |
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27 #include "ODE.h" |
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28 #include "DAEFunc.h" |
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29 #include "Matrix.h" |
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30 |
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31 #ifndef Vector |
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32 #define Vector ColumnVector |
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33 #endif |
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34 |
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35 class DAE : public ODE, public DAEFunc |
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36 { |
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37 public: |
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38 |
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39 DAE (void); |
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40 |
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41 DAE (int); |
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42 |
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43 DAE (Vector& x, double time, DAEFunc& f); |
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44 |
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45 DAE (Vector& x, Vector& xdot, double time, DAEFunc& f); |
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46 |
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47 ~DAE (void); |
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48 |
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49 Vector deriv (void); |
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50 |
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51 virtual void initialize (Vector& x, double t); |
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52 virtual void initialize (Vector& x, Vector& xdot, double t); |
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53 |
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54 Vector integrate (double t); |
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55 |
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56 Matrix integrate (const Vector& tout, Matrix& xdot_out); |
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57 Matrix integrate (const Vector& tout, Matrix& xdot_out, |
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58 const Vector& tcrit); |
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59 |
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60 protected: |
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61 |
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62 /* |
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63 * Some of this is probably too closely related to DASSL, but hey, |
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64 * this is just a first attempt... |
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65 */ |
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66 |
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67 Vector xdot; |
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68 |
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69 private: |
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70 |
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71 int integration_error; |
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72 int restart; |
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73 int liw; |
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74 int lrw; |
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75 int idid; |
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76 int *info; |
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77 int *iwork; |
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78 double *rwork; |
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79 |
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80 friend int ddassl_j (double *time, double *state, double *deriv, |
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81 double *pd, double *cj, double *rpar, int *ipar); |
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82 |
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83 friend int ddassl_f (double *time, double *state, double *deriv, |
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84 double *delta, int *ires, double *rpar, int *ipar); |
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85 |
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86 }; |
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87 |
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88 #endif |
