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CLHEP/GenericFunctions/FunctionSum.hh
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1// -*- C++ -*-
2// $Id: FunctionSum.hh,v 1.2 2003/09/06 14:04:13 boudreau Exp $
3//--------------------------FunctionSum-------------------------------------//
4// //
5// FunctionSum, result of addition of two functions. //
6// Joe Boudreau, Petar Maksimovic, November 1999 //
7// //
8//--------------------------------------------------------------------------//
9
10#ifndef FunctionSum_h
11#define FunctionSum_h 1
13
14namespace Genfun {
15
20 class FunctionSum : public AbsFunction {
21
23
24 public:
25
26 // Constructor
27 FunctionSum(const AbsFunction *arg1, const AbsFunction *arg2);
28
29 // Copy constructor
30 FunctionSum(const FunctionSum &right);
31
32 // Destructor
33 virtual ~FunctionSum();
34
35 // Retreive function value
36 virtual double operator ()(double argument) const;
37 virtual double operator ()(const Argument & a) const;
38
39 // Dimensionality
40 virtual unsigned int dimensionality() const;
41
42 // Derivative.
43 Derivative partial (unsigned int) const;
44
45 // Does this function have an analytic derivative?
46 virtual bool hasAnalyticDerivative() const {return true;}
47
48 private:
49
50 // It is illegal to assign a FunctionSum
51 const FunctionSum & operator=(const FunctionSum &right);
52
53 const AbsFunction *_arg1;
54 const AbsFunction *_arg2;
55 };
56} // namespace Genfun
57#endif
#define FUNCTION_OBJECT_DEF(classname)
FunctionSum(const AbsFunction *arg1, const AbsFunction *arg2)
Definition: FunctionSum.cc:9
virtual ~FunctionSum()
Definition: FunctionSum.cc:31
virtual unsigned int dimensionality() const
Definition: FunctionSum.cc:27
Derivative partial(unsigned int) const
Definition: FunctionSum.cc:52
virtual double operator()(double argument) const
Definition: FunctionSum.cc:39
@ a