Qucs-core
0.0.19
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00001 /* 00002 * transient.h - transient helper class definitions 00003 * 00004 * Copyright (C) 2004, 2006 Stefan Jahn <stefan@lkcc.org> 00005 * 00006 * This is free software; you can redistribute it and/or modify 00007 * it under the terms of the GNU General Public License as published by 00008 * the Free Software Foundation; either version 2, or (at your option) 00009 * any later version. 00010 * 00011 * This software is distributed in the hope that it will be useful, 00012 * but WITHOUT ANY WARRANTY; without even the implied warranty of 00013 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 00014 * GNU General Public License for more details. 00015 * 00016 * You should have received a copy of the GNU General Public License 00017 * along with this package; see the file COPYING. If not, write to 00018 * the Free Software Foundation, Inc., 51 Franklin Street - Fifth Floor, 00019 * Boston, MA 02110-1301, USA. 00020 * 00021 * $Id$ 00022 * 00023 */ 00024 00025 #ifndef __TRANSIENT_H__ 00026 #define __TRANSIENT_H__ 00027 00028 namespace qucs { 00029 00030 enum integrator_type { 00031 INTEGRATOR_UNKNOWN = -1, 00032 INTEGRATOR_EULER = 0, 00033 INTEGRATOR_TRAPEZOIDAL = 1, 00034 INTEGRATOR_GEAR = 2, 00035 INTEGRATOR_ADAMSMOULTON = 3, 00036 INTEGRATOR_ADAMSBASHFORD = 4 00037 }; 00038 00039 class circuit; 00040 class integrator; 00041 00042 namespace transient { 00043 00044 void calcCorrectorCoeff (int, int, nr_double_t *, nr_double_t *); 00045 void calcPredictorCoeff (int, int, nr_double_t *, nr_double_t *); 00046 void getConductance (integrator *, nr_double_t, nr_double_t&); 00047 void integrateEuler (integrator *, int, nr_double_t, nr_double_t&, 00048 nr_double_t&); 00049 void integrateBilinear (integrator *, int, nr_double_t, nr_double_t&, 00050 nr_double_t&); 00051 void integrateGear (integrator *, int, nr_double_t, nr_double_t&, 00052 nr_double_t&); 00053 void integrateMoulton (integrator *, int, nr_double_t, nr_double_t&, 00054 nr_double_t&); 00055 void setIntegrationMethod (circuit *, int); 00056 int correctorType (const char * const, int&); 00057 int correctorType (int, int); 00058 int predictorType (int, int, int&); 00059 nr_double_t getCorrectorError (int, int); 00060 nr_double_t getPredictorError (int, int); 00061 00062 } // namespace transient 00063 00064 } // namespace qucs 00065 00066 #endif /* __TRANSIENT_H__ */