CLHEP 2.4.7.1
C++ Class Library for High Energy Physics
FunctionDifference.hh
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1// -*- C++ -*-
2// $Id: FunctionDifference.hh,v 1.2 2003/09/06 14:04:13 boudreau Exp $
3//--------------------------FunctionDifference------------------------------//
4// //
5// FunctionDifference, result of subtraction of two functions //
6// Joe Boudreau, Petar Maksimovic, November 1999 //
7// //
8//--------------------------------------------------------------------------//
9
10#ifndef FunctionDifference_h
11#define FunctionDifference_h 1
13
14namespace Genfun {
15
21
23
24 public:
25
26 // Constructor
27 FunctionDifference(const AbsFunction* arg1, const AbsFunction *arg2);
28
29 // Copy constructor
31
32 // Destructor
34
35 // Retreive function value
36 virtual double operator ()(double argument) const override;
37 virtual double operator ()(const Argument & a) const override;
38
39 // Dimensionality
40 virtual unsigned int dimensionality() const override;
41
42 // Derivative.
43 Derivative partial (unsigned int) const override;
44
45 // Does this function have an analytic derivative?
46 virtual bool hasAnalyticDerivative() const override {return true;}
47
48 private:
49
50 // It is illegal to assign a FunctionDifference
51 const FunctionDifference & operator=(const FunctionDifference &right);
52
53 const AbsFunction *_arg1;
54 const AbsFunction *_arg2;
55
56 };
57} // namespace Genfun
58#endif
#define FUNCTION_OBJECT_DEF(classname)
virtual double operator()(double argument) const override
virtual bool hasAnalyticDerivative() const override
FunctionDifference(const AbsFunction *arg1, const AbsFunction *arg2)
FunctionDifference(const FunctionDifference &right)
virtual unsigned int dimensionality() const override
Derivative partial(unsigned int) const override
Definition Abs.hh:14
FunctionNoop Derivative