CLHEP/GenericFunctions/Legendre.hh

0001 // -*- C++ -*-
0002 // $Id:
0003 // Legendre Functions P_l(x)
0004 #ifndef Legendre_h
0005 #define Legendre_h 1
0006 #include "CLHEP/GenericFunctions/AbsFunction.hh"
0007 namespace Genfun {
0008
0009   /**
0010    * @author
0011    * @ingroup genfun
0012    */
0013   class Legendre : public AbsFunction  {
0014
0015     FUNCTION_OBJECT_DEF(Legendre)
0016
0017       public:
0018
0019     // Constructor:
0020     Legendre (unsigned int order);
0021
0022     // Copy constructor
0023     Legendre(const Legendre &right);
0024
0025     // Destructor
0026     virtual ~Legendre();
0027
0028     // Retreive function value
0029     virtual double operator ()(double argument) const override;
0030     virtual double operator ()(const Argument & a) const override {return operator() (a[0]);}
0031
0032   private:
0033
0034     // It is illegal to assign an adjustable constant
0035     const Legendre & operator=(const Legendre &right);
0036
0037     // The type and order of the Legendre function
0038     unsigned int      _order;
0039
0040   };
0041
0042 } // namespace Genfun
0043
0044
0045 #include "CLHEP/GenericFunctions/Legendre.icc"
0046 #endif