EvtItgSimpsonIntegrator.hh
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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 "EvtGenModels/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