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25 // 25 //
26 // G4GaussJacobiQ 26 // G4GaussJacobiQ
27 // 27 //
28 // Class description: 28 // Class description:
29 // 29 //
30 // Roots of ortogonal polynoms and correspondi 30 // Roots of ortogonal polynoms and corresponding weights are calculated based on
31 // iteration method (by bisection Newton algor 31 // iteration method (by bisection Newton algorithm). Constant values for initial
32 // approximations were derived from the book: 32 // approximations were derived from the book:
33 // M. Abramowitz, I. Stegun, Handbook of mat 33 // M. Abramowitz, I. Stegun, Handbook of mathematical functions,
34 // DOVER Publications INC, New York 1965 ; c 34 // DOVER Publications INC, New York 1965 ; chapters 9, 10, and 22.
35 35
36 // Author: V.Grichine, 13.05.1997 36 // Author: V.Grichine, 13.05.1997
37 // ------------------------------------------- 37 // --------------------------------------------------------------------
38 #ifndef G4GAUSSJACOBIQ_HH 38 #ifndef G4GAUSSJACOBIQ_HH
39 #define G4GAUSSJACOBIQ_HH 1 39 #define G4GAUSSJACOBIQ_HH 1
40 40
41 #include "G4VGaussianQuadrature.hh" 41 #include "G4VGaussianQuadrature.hh"
42 42
43 class G4GaussJacobiQ : public G4VGaussianQuadr 43 class G4GaussJacobiQ : public G4VGaussianQuadrature
44 { 44 {
45 public: 45 public:
46 G4GaussJacobiQ(function pFunction, G4double 46 G4GaussJacobiQ(function pFunction, G4double alpha, G4double beta,
47 G4int nJacobi); 47 G4int nJacobi);
48 // Constructor for Gauss-Jacobi integration 48 // Constructor for Gauss-Jacobi integration method.
49 49
50 G4GaussJacobiQ(const G4GaussJacobiQ&) = dele 50 G4GaussJacobiQ(const G4GaussJacobiQ&) = delete;
51 G4GaussJacobiQ& operator=(const G4GaussJacob 51 G4GaussJacobiQ& operator=(const G4GaussJacobiQ&) = delete;
52 52
53 G4double Integral() const; 53 G4double Integral() const;
54 // Gauss-Jacobi method for integration of 54 // Gauss-Jacobi method for integration of
55 // ((1-x)^alpha)*((1+x)^beta)*pFunction(x) f 55 // ((1-x)^alpha)*((1+x)^beta)*pFunction(x) from minus unit to plus unit.
56 }; 56 };
57 57
58 #endif 58 #endif
59 59