Geant4  10.02
Gamma.hh
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28 // $Id: Gamma.hh 68057 2013-03-13 14:46:00Z gcosmo $
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30 //
31 //---------------------------------------------------------------
32 // GEANT 4 class header file
33 //
34 // Gamma
35 //
36 // Class description:
37 //
38 // Gamma function.
39 
40 //---------------------------------------------------------------
41 #ifndef MYGAMMA_H
42 #define MYGAMMA_H
43 
44 #include <cmath>
45 
46 class MyGamma
47 {
48  public:
49 
50  MyGamma ();
51  ~MyGamma();
52 
53  double Gamma(double z);
54  double Gamma(double a,double x);
55 
56  private:
57 
58  double GamCf(double a,double x);
59  double GamSer(double a,double x);
60 
61  // Abs
62  static short Abs(short d) { return (d > 0) ? d : -d; }
63  static int Abs(int d) { return (d > 0) ? d : -d; }
64  static long Abs(long d) { return (d > 0) ? d : -d; }
65  static float Abs(float d) { return (d > 0) ? d : -d; }
66  static double Abs(double d) { return (d > 0) ? d : -d; }
67  static double LnGamma(double z);
68  static double Log(double x) { return std::log(x); }
69  static double Exp(double x) { return std::exp(x); }
70 };
71 
72 #endif
MyGamma()
Definition: Gamma.cc:37
static int Abs(int d)
Definition: Gamma.hh:63
G4double z
Definition: TRTMaterials.hh:39
G4double a
Definition: TRTMaterials.hh:39
static double Abs(double d)
Definition: Gamma.hh:66
static short Abs(short d)
Definition: Gamma.hh:62
double Gamma(double z)
Definition: Gamma.cc:42
Definition: Gamma.hh:46
double GamCf(double a, double x)
Definition: Gamma.cc:76
static float Abs(float d)
Definition: Gamma.hh:65
~MyGamma()
Definition: Gamma.cc:39
static double Exp(double x)
Definition: Gamma.hh:69
double GamSer(double a, double x)
Definition: Gamma.cc:116
const G4double x[NPOINTSGL]
static double Log(double x)
Definition: Gamma.hh:68
static long Abs(long d)
Definition: Gamma.hh:64
static double LnGamma(double z)
Definition: Gamma.cc:147