CLHEP/GenericFunctions/Exp.hh
// -*- C++ -*-
// $Id: Exp.hh,v 1.1 2001/05/16 05:10:31 joeb Exp $
//---------------------Exp--------------------------------------------------//
// //
// Class Exp //
// Joe Boudreau, Petar Maksimovic, November 1999 //
// //
//--------------------------------------------------------------------------//
#ifndef Exp_h
#define Exp_h 1
#include "CLHEP/GenericFunctions/AbsFunction.hh"
#include "CLHEP/GenericFunctions/Parameter.hh"
HEP_BEGIN_NAMESPACE(Genfun)
class Exp : public AbsFunction {
FUNCTION_OBJECT_DEF(Exp)
public:
// Constructor
Exp();
// Copy constructor
Exp(const Exp &right);
// Destructor
virtual ~Exp();
// Retreive function value
virtual double operator ()(double argument) const;
virtual double operator ()(const Argument & a) const {return operator() (a[0]);}
// Derivative.
Derivative partial (unsigned int) const;
// Does this function have an analytic derivative?
virtual bool hasAnalyticDerivative() const {return true;}
private:
// It is illegal to assign an adjustable constant
const Exp & operator=(const Exp &right);
};
HEP_END_NAMESPACE(Genfun)
#endif
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