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- /* rk4.h - Simulation of rocket flight */
- /* Copyright (C) 2000 */
- /* Antoine Lefebvre <antoine.lefebvre@polymtl.ca> */
-
- /* This program is free software; you can redistribute it and/or modify*/
- /* it under the terms of the GNU General Public License as published by*/
- /* the Free Software Foundation; either version 2 of the License, or */
- /* (at your option) any later version. */
-
- /* This program is distributed in the hope that it will be useful, */
- /* but WITHOUT ANY WARRANTY; without even the implied warranty of */
- /* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the */
- /* GNU General Public License for more details. */
-
- /* You should have received a copy of the GNU General Public License */
- /* along with this program; if not, write to the Free Software */
- /* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
-
- #if !defined (rk4_h)
- #define rk4_h 1
-
- #include "c++rocket.h"
-
- extern int model_1(int neq, double time,
- double* z, double* dy,
- int ierr);
-
- extern int model_2(int neq, double time,
- double* z, double* dy,
- int ierr);
-
- typedef int (*ModelFunc_t) (int, double,
- double*, double*, int);
-
- extern "C" int rk4( int (*f)(int neq, double time,
- double *y, double *dy,
- int ierr),
- int neq, double step, double duration,
- double *ic, double **y );
-
- class rk4_solver
- {
-
- private:
- void *md; // pointer to the model function
- int memory;
-
- double time;
-
- int neq;
- int length;
- double **ans;
-
- public:
- rk4_solver(Model_t model);
- ~rk4_solver();
-
- void print();
- void export_octave(char *filename);
-
- int solve(double *st, double duration, double step);
- };
-
-
- #endif
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