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GenericFunctions/Sigma.hh
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1 // -*- C++ -*-
2 // $Id:
3 //--------------------------Sigma-------------------------------------------//
4 // //
5 // Sigma, result of addition of N functions //
6 // //
7 //--------------------------------------------------------------------------//
8 
9 #ifndef Sigma_h
10 #define Sigma_h 1
12 
13 namespace Genfun {
14 
19  class Sigma : public AbsFunction {
20 
22 
23  public:
24 
25  // Constructor
26  Sigma();
27 
28  // Copy constructor
29  Sigma(const Sigma &right);
30 
31  // Destructor
32  virtual ~Sigma();
33 
34  // Retreive function value
35  virtual double operator ()(double argument) const;
36  virtual double operator ()(const Argument & a) const;
37 
38  // Dimensionality
39  virtual unsigned int dimensionality() const;
40 
41  // Derivative.
42  Derivative partial (unsigned int) const;
43 
44  // Does this function have an analytic derivative?
45  virtual bool hasAnalyticDerivative() const {return true;}
46 
47  // Add a function to the sum:
48  void accumulate (const AbsFunction & fcn);
49 
50  private:
51 
52  // It is illegal to assign a Sigma
53  const Sigma & operator=(const Sigma &right);
54 
55  std::vector<const AbsFunction *> _fcn;
56 
57  };
58 } // namespace Genfun
59 #endif
Genfun::Sigma::partial
Derivative partial(unsigned int) const
Definition: Sigma.cc:53
a
@ a
Definition: testCategories.cc:125
Genfun::Sigma::operator()
virtual double operator()(double argument) const
Definition: Sigma.cc:36
Genfun::Derivative
FunctionNoop Derivative
Definition: CLHEP/GenericFunctions/AbsFunction.hh:40
Genfun::AbsFunction
Definition: CLHEP/GenericFunctions/AbsFunction.hh:48
AbsFunction.hh
Genfun::Sigma::Sigma
Sigma()
Definition: Sigma.cc:13
Genfun::Sigma::~Sigma
virtual ~Sigma()
Definition: Sigma.cc:29
Genfun::Sigma::dimensionality
virtual unsigned int dimensionality() const
Definition: Sigma.cc:24
Genfun::Sigma
Definition: CLHEP/GenericFunctions/Sigma.hh:19
FUNCTION_OBJECT_DEF
#define FUNCTION_OBJECT_DEF(classname)
Definition: CLHEP/GenericFunctions/AbsFunction.hh:144
Genfun::Sigma::hasAnalyticDerivative
virtual bool hasAnalyticDerivative() const
Definition: GenericFunctions/Sigma.hh:45
Genfun
Definition: CLHEP/GenericFunctions/Abs.hh:14
Genfun::Sigma::accumulate
void accumulate(const AbsFunction &fcn)
Definition: Sigma.cc:9