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GenericFunctions/Theta.hh
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1 // -*- C++ -*-
2 // $Id:
3 //---------------------Theta------------------------------------------------//
4 // //
5 // Class Theta //
6 // Joe Boudreau, Petar Maksimovic, November 1999 //
7 // //
8 //--------------------------------------------------------------------------//
9 #ifndef Theta_h
10 #define Theta_h 1
12 namespace Genfun {
13 
18  class Theta : public AbsFunction {
19 
21 
22  public:
23 
24  // Constructor
25  Theta();
26 
27  // Destructor
28  virtual ~Theta();
29 
30  // Copy constructor
31  Theta(const Theta &right);
32 
33  // Retreive function value
34  virtual double operator ()(double argument) const;
35  virtual double operator ()(const Argument & a) const {return operator() (a[0]);}
36 
37  // Derivative.
38  Derivative partial (unsigned int) const;
39 
40  // Does this function have an analytic derivative?
41  virtual bool hasAnalyticDerivative() const {return true;}
42 
43 
44  private:
45 
46  // It is illegal to assign a Theta
47  const Theta & operator=(const Theta &right);
48 
49  };
50 } // namespace Genfun
51 
52 #endif