mirror of
https://github.com/aportelli/LatAnalyze.git
synced 2024-11-10 08:55:37 +00:00
59 lines
2.0 KiB
C++
59 lines
2.0 KiB
C++
/*
|
|
* GslQagsIntegrator.hpp, part of LatAnalyze 3
|
|
*
|
|
* Copyright (C) 2013 - 2015 Antonin Portelli
|
|
*
|
|
* LatAnalyze 3 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.
|
|
*
|
|
* LatAnalyze 3 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 LatAnalyze 3. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
#ifndef Latan_GslQagsIntegrator_hpp_
|
|
#define Latan_GslQagsIntegrator_hpp_
|
|
|
|
#include <LatAnalyze/Global.hpp>
|
|
#include <LatAnalyze/Function.hpp>
|
|
#include <LatAnalyze/Integrator.hpp>
|
|
#include <gsl/gsl_integration.h>
|
|
|
|
BEGIN_LATAN_NAMESPACE
|
|
|
|
/******************************************************************************
|
|
* GSL general quadrature adaptive integration with singularities *
|
|
******************************************************************************/
|
|
|
|
class GslQagsIntegrator: public Integrator
|
|
{
|
|
public:
|
|
static const unsigned int defaultLimit = 1000;
|
|
static constexpr double defaultPrec = 1.0e-7;
|
|
public:
|
|
// constructor
|
|
GslQagsIntegrator(const unsigned int limit = defaultLimit,
|
|
const double precision = defaultPrec);
|
|
// destructor
|
|
virtual ~GslQagsIntegrator(void);
|
|
// integral calculation
|
|
virtual double operator()(const DoubleFunction &f, const double xMin,
|
|
const double xMax);
|
|
// get last error
|
|
double getLastError(void) const;
|
|
private:
|
|
unsigned int limit_;
|
|
double precision_, error_;
|
|
gsl_integration_workspace *workspace_;
|
|
};
|
|
|
|
END_LATAN_NAMESPACE
|
|
|
|
#endif // Latan_GslQagsIntegrator_hpp_
|