Mercurial > octave
view liboctave/numeric/base-de.h @ 31249:de6fc38c78c6
Make Jacobian types offered by dlsode.f accessible by lsode (bug #31626).
* liboctave/numeric/LSODE-opts.in: Add options "jacobian type", "lower jacobian
subdiagonals", and "upper jacobian subdiagonals".
* liboctave/numeric/LSODE.cc (file scope, lsode_j,
LSODE::do_integrate (double)): Handle new configurable Jacobian types.
* build-aux/mk-opts.pl: Don't implicitly convert to integer in condition.
author | Olaf Till <olaf.till@uni-jena.de> |
---|---|
date | Fri, 12 Nov 2010 08:53:05 +0100 |
parents | 796f54d4ddbf |
children | 597f3ee61a48 |
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//////////////////////////////////////////////////////////////////////// // // Copyright (C) 1996-2022 The Octave Project Developers // // See the file COPYRIGHT.md in the top-level directory of this // distribution or <https://octave.org/copyright/>. // // This file is part of Octave. // // Octave 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 3 of the License, or // (at your option) any later version. // // Octave 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 Octave; see the file COPYING. If not, see // <https://www.gnu.org/licenses/>. // //////////////////////////////////////////////////////////////////////// #if ! defined (octave_base_de_h) #define octave_base_de_h 1 #include "octave-config.h" #include <string> #include "dColVector.h" class base_diff_eqn { public: base_diff_eqn (void) : m_x (), m_t (0.0), m_stop_time (0.0), m_stop_time_set (false), m_restart (true), m_integration_error (false), m_istate (0) { } base_diff_eqn (const ColumnVector& xx, double tt) : m_x (xx), m_t (tt), m_stop_time (0.0), m_stop_time_set (false), m_restart (true), m_integration_error (false), m_istate (0) { } base_diff_eqn (const base_diff_eqn& a) : m_x (a.m_x), m_t (a.m_t), m_stop_time (0.0), m_stop_time_set (false), m_restart (true), m_integration_error (false), m_istate (0) { } virtual ~base_diff_eqn (void) = default; base_diff_eqn& operator = (const base_diff_eqn& a) { if (this != &a) { m_x = a.m_x; m_t = a.m_t; m_stop_time = a.m_stop_time; m_stop_time_set = a.m_stop_time_set; m_restart = a.m_restart; m_integration_error = a.m_integration_error; m_istate = a.m_istate; } return *this; } void initialize (const ColumnVector& x0, double t0) { m_x = x0; m_t = t0; m_integration_error = false; m_istate = 0; force_restart (); } octave_idx_type size (void) const { return m_x.numel (); } ColumnVector state (void) const { return m_x; } double time (void) const { return m_t; } void set_stop_time (double tt) { m_stop_time_set = true; m_stop_time = tt; force_restart (); } void clear_stop_time (void) { m_stop_time_set = false; force_restart (); } virtual void force_restart (void) { m_restart = true; } bool integration_ok (void) const { return ! m_integration_error; } octave_idx_type integration_state (void) const { return m_istate; } virtual std::string error_message (void) const = 0; protected: ColumnVector m_x; double m_t; double m_stop_time; bool m_stop_time_set; bool m_restart; bool m_integration_error; octave_idx_type m_istate; }; #endif