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52 lines
1.3 KiB
C
52 lines
1.3 KiB
C
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/*
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* Author: Andrej Prochazka
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* Copyright(C) 2017
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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* You should have received a copy of the GNU Affero General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef INTEGRATOR_H
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#define INTEGRATOR_H
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#include "gsl/gsl_integration.h"
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#include <functional>
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#ifdef USE_THREADS
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#include <mutex>
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#endif
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namespace catima{
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/// helper class to integrate functions using the GSL library
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class IntegratorGSL{
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public:
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IntegratorGSL();
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~IntegratorGSL();
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double Integrate(std::function<double(double)> f, double min, double max, double precision, bool adaptive=true);
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private:
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gsl_integration_workspace *w;
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double error;
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double precision;
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double result;
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double min;
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double max;
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#ifdef USE_THREADS
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std::mutex integration_mutex;
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#endif
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};
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extern IntegratorGSL integratorGSL;
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}
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#endif
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