CLHEP/GenericFunctions/Square.hh
// -*- C++ -*-
// $Id: Square.hh,v 1.2 2001/05/16 05:10:37 joeb Exp $
//----------------------Square------- --------------------------------------//
// //
// Class Square //
// Joe Boudreau, Petar Maksimovic, Nov. 1999 //
// //
// Square(x) returns x*x. //
//--------------------------------------------------------------------------//
#ifndef Square_h
#define Square_h 1
#include "CLHEP/GenericFunctions/AbsFunction.hh"
HEP_BEGIN_NAMESPACE(Genfun)
class Square : public AbsFunction {
FUNCTION_OBJECT_DEF(Square)
public:
// Constructor
Square();
// Copy constructor
Square(const Square &right);
// Destructor
virtual ~Square();
// Retrieve 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 fixed constant
const Square & operator=(const Square &right);
};
HEP_END_NAMESPACE(Genfun)
#endif
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