ThreePointsNumericalDerivative.h

Go to the documentation of this file.

// SPDX-FileCopyrightText: The Bio++ Development Group
//
// SPDX-License-Identifier: CECILL-2.1

#ifndef BPP_NUMERIC_FUNCTION_THREEPOINTSNUMERICALDERIVATIVE_H
#define BPP_NUMERIC_FUNCTION_THREEPOINTSNUMERICALDERIVATIVE_H


#include "NumericalDerivative.h"
#include "Functions.h"

// From the STL:
#include <map>
#include <vector>
#include <string>

namespace bpp
{
class ThreePointsNumericalDerivative :
  public AbstractNumericalDerivative
{
private:
  double f1_, f2_, f3_, f11_, f22_, f12_, f21_;

public:
  ThreePointsNumericalDerivative (std::shared_ptr<FunctionInterface> function) :
    AbstractNumericalDerivative(function),
    f1_(),
    f2_(),
    f3_(),
    f11_(),
    f22_(),
    f12_(),
    f21_() {}
  ThreePointsNumericalDerivative(std::shared_ptr<FirstOrderDerivable> function) :
    AbstractNumericalDerivative(function),
    f1_(),
    f2_(),
    f3_(),
    f11_(),
    f22_(),
    f12_(),
    f21_() {}
  ThreePointsNumericalDerivative(std::shared_ptr<SecondOrderDerivable> function) :
    AbstractNumericalDerivative(function),
    f1_(),
    f2_(),
    f3_(),
    f11_(),
    f22_(),
    f12_(),
    f21_() {}
  virtual ~ThreePointsNumericalDerivative() {}

  ThreePointsNumericalDerivative* clone() const override
  {
    return new ThreePointsNumericalDerivative(*this);
  }

public:
  double getValue() const override
  {
    return f2_;
  }

protected:
  void updateDerivatives(const ParameterList& parameters) override;
};
} // end of namespace bpp.
#endif // BPP_NUMERIC_FUNCTION_THREEPOINTSNUMERICALDERIVATIVE_H