AssociatedLegendre.hh

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// -*- C++ -*-
// $Id: AssociatedLegendre.hh,v 1.2 2003/09/06 14:04:13 boudreau Exp $
//---------------------AssociatedLegendre-----------------------------------//
//                                                                          //
// Class AssociatedLegendre.  An associated legendre polynomial             //
// Joe Boudreau, Petar Maksimovic, November 1999                            //
//                                                                          //
//--------------------------------------------------------------------------//
#ifndef AssociatedLegendre_h
#define AssociatedLegendre_h 1
#include "CLHEP/GenericFunctions/AbsFunction.hh"
#include "CLHEP/GenericFunctions/Parameter.hh"
 
namespace Genfun {
 
  /**
   * @author
   * @ingroup genfun
   */
  class AssociatedLegendre : public AbsFunction  {
  
    FUNCTION_OBJECT_DEF(AssociatedLegendre)
 
      public:
 
    // Constructor
    AssociatedLegendre(unsigned int l, unsigned int m);
 
    // Copy constructor
    AssociatedLegendre(const AssociatedLegendre &right);
  
    // Destructor
    virtual ~AssociatedLegendre();
  
    // Retreive function value
    virtual double operator ()(double argument) const override;
    virtual double operator ()(const Argument & a) const override {return operator() (a[0]);}
  
    // Get the integer variable l
    unsigned int l() const;
 
    // Get the integer variable mj
    unsigned int m() const;
 
  private:
 
    // It is illegal to assign an adjustable constant
    const AssociatedLegendre & operator=(const AssociatedLegendre &right);
 
    // Here is the decay constant
    unsigned int _l;
 
    // Here is the sigma
    unsigned int _m;
 
  };
 
} // namespace Genfun
 
#include "CLHEP/GenericFunctions/AssociatedLegendre.icc"
 
 
#endif