filonintegral.hpp

/* -*- mode: c++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
 
/*
 Copyright (C) 2014 Klaus Spanderen
 
 This file is part of QuantLib, a free-software/open-source library
 for financial quantitative analysts and developers - http://quantlib.org/
 
 QuantLib is free software: you can redistribute it and/or modify it
 under the terms of the QuantLib license.  You should have received a
 copy of the license along with this program; if not, please email
 <quantlib-dev@lists.sf.net>. The license is also available online at
 <http://quantlib.org/license.shtml>.
 
 This program 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 license for more details.
*/
 
#ifndef quantlib_filon_integral_h
#define quantlib_filon_integral_h
 
#include <ql/math/integrals/integral.hpp>
 
namespace QuantLib {
 
 
    class FilonIntegral : public Integrator {
      public:
        enum Type { Sine, Cosine };
        FilonIntegral(Type type, Real t, Size intervals);
 
      protected:
        Real integrate(const ext::function<Real(Real)>& f, Real a, Real b) const override;
 
      private:
        const Type type_;
        const Real t_;
        const Size intervals_, n_;
    };
}
 
#endif