| Geant4 Cross Reference |
>> 1 // This code implementation is the intellectual property of
>> 2 // the GEANT4 collaboration.
1 // 3 //
2 // ******************************************* << 4 // By copying, distributing or modifying the Program (or any work
3 // * License and Disclaimer << 5 // based on the Program) you indicate your acceptance of this statement,
4 // * << 6 // and all its terms.
5 // * The Geant4 software is copyright of th <<
6 // * the Geant4 Collaboration. It is provided <<
7 // * conditions of the Geant4 Software License <<
8 // * LICENSE and available at http://cern.ch/ <<
9 // * include a list of copyright holders. <<
10 // * <<
11 // * Neither the authors of this software syst <<
12 // * institutes,nor the agencies providing fin <<
13 // * work make any representation or warran <<
14 // * regarding this software system or assum <<
15 // * use. Please see the license in the file <<
16 // * for the full disclaimer and the limitatio <<
17 // * <<
18 // * This code implementation is the result <<
19 // * technical work of the GEANT4 collaboratio <<
20 // * By using, copying, modifying or distri <<
21 // * any work based on the software) you ag <<
22 // * use in resulting scientific publicati <<
23 // * acceptance of all terms of the Geant4 Sof <<
24 // ******************************************* <<
25 // 7 //
26 // G4GaussHermiteQ << 8 // $Id: G4GaussHermiteQ.hh,v 1.2 1999/11/16 17:30:57 gcosmo Exp $
>> 9 // GEANT4 tag $Name: geant4-01-00 $
27 // 10 //
28 // Class description: 11 // Class description:
29 // 12 //
30 // Roots of ortogonal polynoms and correspondi 13 // Roots of ortogonal polynoms and corresponding weights are calculated based on
31 // iteration method (by bisection Newton algor 14 // iteration method (by bisection Newton algorithm). Constant values for initial
32 // approximations were derived from the book: << 15 // approximations were derived from the book: M. Abramowitz, I. Stegun, Handbook
33 // M. Abramowitz, I. Stegun, Handbook of mat << 16 // of mathematical functions, DOVER Publications INC, New York 1965 ; chapters 9,
34 // DOVER Publications INC, New York 1965 ; c << 17 // 10, and 22 .
>> 18 //
>> 19 // --------------------------------------------------------------------------
>> 20 //
>> 21 // Constructor for Gauss-Hermite quadrature method . The function GaussHermite
>> 22 // should be called then
>> 23 //
>> 24 // G4GaussHermiteQ( function pFunction, G4int nHermite )
>> 25 //
>> 26 // ----------------------------------------------------------------------------
>> 27 //
>> 28 // Gauss-Hermite method for integration of exp(-x*x)*nFunction(x) from minus infinity
>> 29 // to plus infinity .
>> 30 //
>> 31 // G4double Integral() const
>> 32
>> 33 // ------------------------------- HISTORY -------------------------------------
>> 34 //
>> 35 // 13.05.97 V.Grichine (Vladimir.Grichine@cern.chz0
35 36
36 // Author: V.Grichine, 13.05.1997 V.Grichine <<
37 // ------------------------------------------- <<
38 #ifndef G4GAUSSHERMITEQ_HH 37 #ifndef G4GAUSSHERMITEQ_HH
39 #define G4GAUSSHERMITEQ_HH 1 << 38 #define G4GAUSSHERMITEQ_HH
40 39
41 #include "G4VGaussianQuadrature.hh" 40 #include "G4VGaussianQuadrature.hh"
42 41
43 class G4GaussHermiteQ : public G4VGaussianQuad 42 class G4GaussHermiteQ : public G4VGaussianQuadrature
44 { 43 {
45 public: << 44 public:
46 // Constructor << 45 // Constructor
>> 46
>> 47 G4GaussHermiteQ( function pFunction, G4int nHermite ) ;
>> 48
>> 49 // Methods
>> 50
>> 51 G4double Integral() const ;
>> 52
>> 53
>> 54 protected:
>> 55
>> 56 private:
>> 57
>> 58 } ;
47 59
48 G4GaussHermiteQ(function pFunction, G4int nH <<
49 // Constructor for Gauss-Hermite quadrature <<
50 // The function GaussHermite should be calle <<
51 <<
52 G4GaussHermiteQ(const G4GaussHermiteQ&) = de <<
53 G4GaussHermiteQ& operator=(const G4GaussHerm <<
54 <<
55 G4double Integral() const; <<
56 // Gauss-Hermite method for integration of s <<
57 // minus infinity to plus infinity. <<
58 }; <<
59 60
60 #endif 61 #endif
61 62