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EvtBtoXsgammaRootFinder.hh
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EvtBtoXsgammaRootFinder.hh
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//--------------------------------------------------------------------------
//
// 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.
//
// Copyright Information: See EvtGen/COPYRIGHT
// Copyright (C) 2001 Brunel University
//
// Module: EvtGen/EvtBtoXsgammaRootFinder.hh
//
// Description:
// Root finding algorithms using the bilear method. Basic structure
// lifted from the BaBar IntegrationUtils root finding algorithm
// (author John Back).
//
// Modification history:
//
// Jane Tinslay March 21, 2001 Module created
//
//------------------------------------------------------------------------
#ifndef EVTBTOXSGAMMAROOTFINDER_HH
#define EVTBTOXSGAMMAROOTFINDER_HH
//-------------
// C Headers --
//-------------
extern "C" {
}
//#include "EvtGenBase/EvtItgAbsFunction.hh"
class EvtItgAbsFunction;
class EvtBtoXsgammaRootFinder{
public:
// Constructors
EvtBtoXsgammaRootFinder();
// Destructor
virtual ~EvtBtoXsgammaRootFinder( );
double GetRootSingleFunc(const EvtItgAbsFunction* theFunc, double functionValue,
double lowerValue, double upperValue, double precision);
double GetGaussIntegFcnRoot(EvtItgAbsFunction *theFunc1, EvtItgAbsFunction *theFunc2,
double integ1Precision, double integ2Precision,
int maxLoop1, int maxLoop2, double integLower,
double integUpper, double lowerValue, double upperValue,
double precision);
private:
EvtBtoXsgammaRootFinder( const EvtBtoXsgammaRootFinder& ); // Copy Constructor
EvtBtoXsgammaRootFinder& operator= ( const EvtBtoXsgammaRootFinder& ); // Assignment op
};
#endif

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