Mercurial > octave-nkf
view liboctave/numeric/DASPK.h @ 20643:d6d04088ac9e
nbininv.m: Increase speed (85X) and accuracy of function (bug #34363).
* nbininv.m: Call new function scalar_nbininv to calculate nbininv for scalar.
If there are still uncalculated values then call bin_search_nbininv. Call
bin_search_nbininv directly for vectors. Add more BIST tests.
* nbininv.m (scalar_binoinv): New subfunction to calculate nbininv for scalar x.
Stops when x > 1000.
* nbininv.m (bin_search_nbininv): New subfunction to do binary search for nbininv.
author | Lachlan Andrew <lachlanbis@gmail.com> |
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date | Sun, 11 Oct 2015 20:33:37 -0700 |
parents | 4197fc428c7d |
children |
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/* Copyright (C) 1996-2015 John W. Eaton 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 <http://www.gnu.org/licenses/>. */ #if !defined (octave_DASPK_h) #define octave_DASPK_h 1 #include <cfloat> #include "DASPK-opts.h" #include "lo-math.h" class OCTAVE_API DASPK : public DAE, public DASPK_options { public: DASPK (void) : DAE (), DASPK_options (), initialized (false), liw (0), lrw (0), info (), iwork (), rwork (), abs_tol (), rel_tol () { } DASPK (const ColumnVector& s, double tm, DAEFunc& f) : DAE (s, tm, f), DASPK_options (), initialized (false), liw (0), lrw (0), info (), iwork (), rwork (), abs_tol (), rel_tol () { } DASPK (const ColumnVector& s, const ColumnVector& deriv, double tm, DAEFunc& f) : DAE (s, deriv, tm, f), DASPK_options (), initialized (false), liw (0), lrw (0), info (), iwork (), rwork (), abs_tol (), rel_tol () { } ~DASPK (void) { } ColumnVector do_integrate (double t); Matrix do_integrate (const ColumnVector& tout); Matrix do_integrate (const ColumnVector& tout, const ColumnVector& tcrit); Matrix integrate (const ColumnVector& tout, Matrix& xdot_out); Matrix integrate (const ColumnVector& tout, Matrix& xdot_out, const ColumnVector& tcrit); std::string error_message (void) const; private: bool initialized; octave_idx_type liw; octave_idx_type lrw; Array<octave_idx_type> info; Array<octave_idx_type> iwork; Array<double> rwork; Array<double> abs_tol; Array<double> rel_tol; }; #endif