LogParabola.h

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/* -*- mode: c++ -*- */

#ifndef _LogParabola_H_
#define _LogParabola_H_

#include "FunctionBase.h"

namespace hippodraw {

class MDL_HIPPOPLOT_API LogParabola : public FunctionBase
{
private:
  enum { NORM, ALPHA, BETA};

protected:

  virtual void initialize ();

  virtual double derivByParm ( int i, double x ) const;

public:

  LogParabola ();

  LogParabola ( double norm, double alpha, double beta);

  virtual FunctionBase * clone () const;

  virtual double operator () ( double x ) const;

  virtual void initialParameters ( const FunctionHelper * helper );

  virtual bool hasDerivatives () const;

};

} // namespace hippodraw

#endif // _LogParabola_H_

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