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00001 // -*- C++ -*- 00002 // $Id: SphericalNeumann.hh,v 1.2 2003/09/06 14:04:13 boudreau Exp $ 00003 //---------------------SphericalNeumann-------------------------------------// 00004 // // 00005 // Class SphericalNeumann. An spherical neumann function of integral order // 00006 // Joe Boudreau, Petar Maksimovic, January 2000 // 00007 // // 00008 //--------------------------------------------------------------------------// 00009 #ifndef SphericalNeumann_h 00010 #define SphericalNeumann_h 1 00011 #include "CLHEP/GenericFunctions/AbsFunction.hh" 00012 #include "CLHEP/GenericFunctions/Parameter.hh" 00013 namespace Genfun { 00014 00019 class SphericalNeumann : public AbsFunction { 00020 00021 FUNCTION_OBJECT_DEF(SphericalNeumann) 00022 00023 public: 00024 00025 // Constructor 00026 SphericalNeumann(unsigned int l); 00027 00028 // Copy constructor 00029 SphericalNeumann(const SphericalNeumann &right); 00030 00031 // Destructor 00032 virtual ~SphericalNeumann(); 00033 00034 // Retreive function value 00035 virtual double operator ()(double argument) const; 00036 virtual double operator ()(const Argument & a) const {return operator() (a[0]);} 00037 00038 // Get the integer variable l 00039 unsigned int l() const; 00040 00041 private: 00042 00043 // It is illegal to assign an adjustable constant 00044 const SphericalNeumann & operator=(const SphericalNeumann &right); 00045 00046 // Here is the decay constant 00047 unsigned int _l; 00048 00049 // Here is the "work function" 00050 const AbsFunction *_function; 00051 00052 // This function is needed in all constructors: 00053 void create(); 00054 00055 }; 00056 } // namespace Genfun 00057 #include "CLHEP/GenericFunctions/SphericalNeumann.icc" 00058 #endif