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00010 #ifndef FunctionProduct_h
00011 #define FunctionProduct_h 1
00012 #include "CLHEP/GenericFunctions/AbsFunction.hh"
00013 namespace Genfun {
00014
00019 class FunctionProduct : public AbsFunction {
00020
00021 FUNCTION_OBJECT_DEF(FunctionProduct)
00022
00023 public:
00024
00025
00026 FunctionProduct(const AbsFunction *arg1, const AbsFunction *arg2);
00027
00028
00029 FunctionProduct(const FunctionProduct &right);
00030
00031
00032 virtual ~FunctionProduct();
00033
00034
00035 virtual double operator ()(double argument) const;
00036 virtual double operator ()(const Argument & a) const;
00037
00038
00039 virtual unsigned int dimensionality() const;
00040
00041
00042 Derivative partial (unsigned int) const;
00043
00044
00045 virtual bool hasAnalyticDerivative() const {return true;}
00046
00047 private:
00048
00049
00050 const FunctionProduct & operator=(const FunctionProduct &right);
00051
00052 const AbsFunction *_arg1;
00053 const AbsFunction *_arg2;
00054 };
00055 }
00056
00057 #endif