EvtItgSimpsonIntegrator.hh

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//--------------------------------------------------------------------------
//
//
// Copyright Information: See EvtGen/COPYRIGHT
//
// Environment:
//      This software is part of the EvtGen package developed jointly
//      for the BaBar and CLEO collaborations.  If you use all or part
//      of it, please give an appropriate acknowledgement.
//
// Module: EvtItgSimpsonIntegrator.hh
//
// Description:
//      Simpson integrator (Stolen and modified from
//      the BaBar IntegrationUtils package - author: Phil Strother).
//
// Modification history:
//
//    Jane Tinslay                March 21, 2001       Module adapted for use in
//                                                     EvtGen
//
//------------------------------------------------------------------------
 
#ifndef EVTITGSIMPSONINTEGRATOR_HH
#define EVTITGSIMPSONINTEGRATOR_HH
 
//-------------
// C Headers --
//-------------
extern "C" {}
 
#include "EvtItgAbsIntegrator.hh"
 
class EvtItgSimpsonIntegrator : public EvtItgAbsIntegrator {
 
public:
  EvtItgSimpsonIntegrator( const EvtItgAbsFunction&, double precision = 1.0e-5,
                           int maxLoop = 20 );
 
  virtual ~EvtItgSimpsonIntegrator();
 
protected:
  virtual double evaluateIt( double, double ) const;
 
private:
  double _precision;
  double _maxLoop;
 
  EvtItgSimpsonIntegrator();
  EvtItgSimpsonIntegrator( const EvtItgSimpsonIntegrator& );            //// Copy Constructor
  EvtItgSimpsonIntegrator& operator=( const EvtItgSimpsonIntegrator& ); // Assignment op
};
 
#endif // ITGSIMPSONINTEGRATOR_HH