function_tools.h

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/*
 * Copyright (C) 2012-2021 Euclid Science Ground Segment
 *
 * This library is free software; you can redistribute it and/or modify it under
 * the terms of the GNU Lesser General Public License as published by the Free
 * Software Foundation; either version 3.0 of the License, or (at your option)
 * any later version.
 *
 * This library 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 Lesser General Public License for more
 * details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this library; if not, write to the Free Software Foundation, Inc.,
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
 */
 
#ifndef MATHUTILS_FUNCTION_TOOLS_H
#define MATHUTILS_FUNCTION_TOOLS_H
 
#include "ElementsKernel/Export.h"
 
#include "MathUtils/function/Function.h"
 
namespace Euclid {
namespace MathUtils {
 
class NumericalIntegrationScheme {
 
public:
  virtual ~NumericalIntegrationScheme() = default;
 
  virtual double operator()(const Function& function, double min, double max) = 0;
};
 
ELEMENTS_API double integrate(const Function& function, const double min, const double max,
                              std::unique_ptr<NumericalIntegrationScheme> numericalIntegrationScheme = nullptr);
 
ELEMENTS_API std::unique_ptr<Function> multiply(const Function& f1, const Function& f2);
 
}  // namespace MathUtils
}  // end of namespace Euclid
 
#endif /* MATHUTILS_FUNCTION_TOOLS_H */