CLHEP VERSION Reference Documentation
   
CLHEP Home Page     CLHEP Documentation     CLHEP Bug Reports

GenericFunctions/Exponential.hh
Go to the documentation of this file.
1 // -*- C++ -*-
2 // $Id: Exponential.hh,v 1.2 2003/09/06 14:04:13 boudreau Exp $
3 //---------------------Exponential------------------------------------------//
4 // //
5 // Class Exponential //
6 // Joe Boudreau, Petar Maksimovic, November 1999 //
7 // //
8 //--------------------------------------------------------------------------//
9 #ifndef Exponential_h
10 #define Exponential_h 1
13 
14 namespace Genfun {
15 
20  class Exponential : public AbsFunction {
21 
23 
24  public:
25 
26  // Constructor
27  Exponential();
28 
29  // Copy constructor
30  Exponential(const Exponential &right);
31 
32  // Destructor
33  virtual ~Exponential();
34 
35  // Retreive function value
36  virtual double operator ()(double argument) const;
37  virtual double operator ()(const Argument & a) const {return operator() (a[0]);}
38 
39  // Get the decay constant
41  const Parameter & decayConstant() const;
42 
43  // Derivative.
44  Derivative partial (unsigned int) const;
45 
46  // Does this function have an analytic derivative?
47  virtual bool hasAnalyticDerivative() const {return true;}
48 
49  private:
50 
51  // It is illegal to assign an adjustable constant
52  const Exponential & operator=(const Exponential &right);
53 
54  // Here is the decay constant
55  Parameter _decayConstant;
56 
57  };
58 } // namespace Genfun
59 #endif
Genfun::Exponential::hasAnalyticDerivative
virtual bool hasAnalyticDerivative() const
Definition: GenericFunctions/Exponential.hh:47
a
@ a
Definition: testCategories.cc:125
Parameter.hh
AbsFunction.hh
Genfun::Exponential
Definition: CLHEP/GenericFunctions/Exponential.hh:20
Genfun::Exponential::~Exponential
virtual ~Exponential()
Definition: Exponential.cc:20
Genfun::Exponential::partial
Derivative partial(unsigned int) const
Definition: Exponential.cc:37
Genfun::Exponential::operator()
virtual double operator()(double argument) const
Definition: Exponential.cc:23
Genfun::Argument
Definition: CLHEP/GenericFunctions/Argument.hh:17
Genfun::Exponential::Exponential
Exponential()
Definition: Exponential.cc:10
Genfun::FunctionNoop
Definition: CLHEP/GenericFunctions/FunctionNoop.hh:19
Genfun::Exponential::decayConstant
Parameter & decayConstant()
Definition: Exponential.cc:28
Genfun::Parameter
Definition: CLHEP/GenericFunctions/Parameter.hh:35
FUNCTION_OBJECT_DEF
#define FUNCTION_OBJECT_DEF(classname)
Definition: CLHEP/GenericFunctions/AbsFunction.hh:144
Genfun
Definition: CLHEP/GenericFunctions/Abs.hh:14