Geant4  10.00.p01
G4GaussChebyshevQ.hh
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27 // $Id: G4GaussChebyshevQ.hh 67970 2013-03-13 10:10:06Z gcosmo $
28 //
29 // Class description:
30 //
31 // Class for Gauss-Chebyshev quadrature method
32 // Roots of ortogonal polynoms and corresponding weights are calculated based on
33 // iteration method (by bisection Newton algorithm). Constant values for initial
34 // approximations were derived from the book: M. Abramowitz, I. Stegun, Handbook
35 // of mathematical functions, DOVER Publications INC, New York 1965 ; chapters 9,
36 // 10, and 22 .
37 //
38 // ------------------------------ CONSTRUCTORS ----------------------------
39 //
40 // Constructor for Gauss-Chebyshev quadrature method
41 //
42 // G4GaussChebyshevQuadrature( function pFunction,
43 // G4int nChebyshev )
44 //
45 //
46 //
47 // ------------------------------- METHODS -----------------------------------
48 //
49 // Integrates function pointed by fFunction from a to b by Gauss-Chebyshev quadrature
50 // method
51 //
52 // G4double Integral(G4double a, G4double b) const
53 
54 // ------------------------------- HISTORY --------------------------------
55 //
56 // 13.05.97 V.Grichine (Vladimir.Grichine@cern.ch)
57 
58 #ifndef G4GAUSSCHEBYSHEVQ_HH
59 #define G4GAUSSCHEBYSHEVQ_HH
60 
61 #include "G4VGaussianQuadrature.hh"
62 
64 {
65 public:
66  // Constructor/destructor
67 
68  G4GaussChebyshevQ( function pFunction,
69  G4int nChebyshev ) ;
70 
72 
73  // Methods
74 
75  G4double Integral(G4double a, G4double b) const ;
76 
77 
78 private:
79 
82 
83 };
84 
85 #endif
G4GaussChebyshevQ & operator=(const G4GaussChebyshevQ &)
G4double a
Definition: TRTMaterials.hh:39
int G4int
Definition: G4Types.hh:78
G4GaussChebyshevQ(function pFunction, G4int nChebyshev)
G4double Integral(G4double a, G4double b) const
double G4double
Definition: G4Types.hh:76