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G4GaussHermiteQ.hh
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27 // $Id: G4GaussHermiteQ.hh 67970 2013-03-13 10:10:06Z gcosmo $
28 //
29 // Class description:
30 //
31 // Roots of ortogonal polynoms and corresponding weights are calculated based on
32 // iteration method (by bisection Newton algorithm). Constant values for initial
33 // approximations were derived from the book: M. Abramowitz, I. Stegun, Handbook
34 // of mathematical functions, DOVER Publications INC, New York 1965 ; chapters 9,
35 // 10, and 22 .
36 //
37 // --------------------------------------------------------------------------
38 //
39 // Constructor for Gauss-Hermite quadrature method . The function GaussHermite
40 // should be called then
41 //
42 // G4GaussHermiteQ( function pFunction, G4int nHermite )
43 //
44 // ----------------------------------------------------------------------------
45 //
46 // Gauss-Hermite method for integration of std::exp(-x*x)*nFunction(x) from minus infinity
47 // to plus infinity .
48 //
49 // G4double Integral() const
50 
51 // ------------------------------- HISTORY -------------------------------------
52 //
53 // 13.05.97 V.Grichine (Vladimir.Grichine@cern.chz0
54 
55 #ifndef G4GAUSSHERMITEQ_HH
56 #define G4GAUSSHERMITEQ_HH
57 
58 #include "G4VGaussianQuadrature.hh"
59 
61 {
62 public:
63  // Constructor
64 
65  G4GaussHermiteQ( function pFunction, G4int nHermite ) ;
66 
67  // Methods
68 
69  G4double Integral() const ;
70 
71 
72 private:
73 
75  G4GaussHermiteQ& operator=(const G4GaussHermiteQ&);
76 
77 };
78 
79 #endif
int G4int
Definition: G4Types.hh:78
G4double Integral() const
double G4double
Definition: G4Types.hh:76
G4GaussHermiteQ(function pFunction, G4int nHermite)