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da0e9ce3 | 1 | //-------------------------------------------------------------------------- |
2 | // | |
3 | // Environment: | |
4 | // This software is part of the EvtGen package developed jointly | |
5 | // for the BaBar and CLEO collaborations. If you use all or part | |
6 | // of it, please give an appropriate acknowledgement. | |
7 | // | |
8 | // Copyright Information: See EvtGen/COPYRIGHT | |
9 | // Copyright (C) 2001 Brunel University | |
10 | // | |
11 | // Module: EvtGen/EvtBtoXsgammaRootFinder.hh | |
12 | // | |
13 | // Description: | |
14 | // Root finding algorithms using the bilear method. Basic structure | |
15 | // lifted from the BaBar IntegrationUtils root finding algorithm | |
16 | // (author John Back). | |
17 | // | |
18 | // Modification history: | |
19 | // | |
20 | // Jane Tinslay March 21, 2001 Module created | |
21 | // | |
22 | //------------------------------------------------------------------------ | |
23 | ||
24 | #ifndef EVTBTOXSGAMMAROOTFINDER_HH | |
25 | #define EVTBTOXSGAMMAROOTFINDER_HH | |
26 | ||
27 | //------------- | |
28 | // C Headers -- | |
29 | //------------- | |
30 | extern "C" { | |
31 | } | |
32 | ||
33 | //#include "EvtGenBase/EvtItgAbsFunction.hh" | |
34 | class EvtItgAbsFunction; | |
35 | ||
36 | class EvtBtoXsgammaRootFinder{ | |
37 | ||
38 | public: | |
39 | ||
40 | // Constructors | |
41 | ||
42 | EvtBtoXsgammaRootFinder(); | |
43 | ||
44 | // Destructor | |
45 | virtual ~EvtBtoXsgammaRootFinder( ); | |
46 | ||
47 | double GetRootSingleFunc(const EvtItgAbsFunction* theFunc, double functionValue, | |
48 | double lowerValue, double upperValue, double precision); | |
49 | ||
50 | double GetGaussIntegFcnRoot(EvtItgAbsFunction *theFunc1, EvtItgAbsFunction *theFunc2, | |
51 | double integ1Precision, double integ2Precision, | |
52 | int maxLoop1, int maxLoop2, double integLower, | |
53 | double integUpper, double lowerValue, double upperValue, | |
54 | double precision); | |
55 | ||
56 | private: | |
57 | ||
58 | EvtBtoXsgammaRootFinder( const EvtBtoXsgammaRootFinder& ); // Copy Constructor | |
59 | EvtBtoXsgammaRootFinder& operator= ( const EvtBtoXsgammaRootFinder& ); // Assignment op | |
60 | ||
61 | }; | |
62 | ||
63 | #endif | |
64 | ||
65 |