CLHEP/GenericFunctions/Tan.hh
// -*- C++ -*-
// $Id: Tan.hh,v 1.2 2001/06/18 13:53:15 evc Exp $
//---------------------Tan--------------------------------------------------//
// //
// Class Tan //
// Joe Boudreau, Petar Maksimovic, November 1999 //
// //
//--------------------------------------------------------------------------//
#ifndef Tan_h
#define Tan_h 1
#include "CLHEP/GenericFunctions/AbsFunction.hh"
HEP_BEGIN_NAMESPACE(Genfun)
class Tan : public AbsFunction {
FUNCTION_OBJECT_DEF(Tan)
public:
// Constructor
Tan();
// Destructor
virtual ~Tan();
// Copy constructor
Tan(const Tan &right);
// 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 a Tan
const Tan & operator=(const Tan &right);
};
HEP_END_NAMESPACE(Genfun)
#endif
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