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EvtGen  2.0.0
Monte Carlo generator of particle decays, in particular the weak decays of heavy flavour particles such as B mesons.
EvtItgTwoCoeffFcn.cpp
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20 
22 
23 #include "EvtGenBase/EvtPatches.hh"
24 
25 //-------------
26 // C Headers --
27 //-------------
28 extern "C" {
29 }
30 
32  double ( *theFunction )( double, const std::vector<double>&,
33  const std::vector<double>& ),
34  double lowerRange, double upperRange, const std::vector<double>& coeffs1,
35  const std::vector<double>& coeffs2 ) :
36  EvtItgAbsFunction( lowerRange, upperRange ),
37  _myFunction( theFunction ),
38  _coeffs1( coeffs1 ),
39  _coeffs2( coeffs2 )
40 {
41 }
42 
43 double EvtItgTwoCoeffFcn::myFunction( double x ) const
44 {
45  return _myFunction( x, _coeffs1, _coeffs2 );
46 }
47 
48 void EvtItgTwoCoeffFcn::setCoeff( int vect, int which, double value )
49 {
50  if ( vect == 1 )
51  _coeffs1[which] = value;
52  else if ( vect == 2 )
53  _coeffs2[which] = value;
54 }
55 
56 double EvtItgTwoCoeffFcn::getCoeff( int vect, int which )
57 {
58  if ( vect == 1 )
59  return _coeffs1[which];
60  else if ( vect == 2 )
61  return _coeffs2[which];
62  else {
63  return 0;
64  }
65 }
std::vector< double > _coeffs1
void setCoeff(int, int, double) override
EvtItgTwoCoeffFcn(double(*theFunction)(double, const std::vector< double > &, const std::vector< double > &), double lowerRange, double upperRange, const std::vector< double > &coeffs1, const std::vector< double > &coeffs2)
double(* _myFunction)(double x, const std::vector< double > &coeffs1, const std::vector< double > &coeffs2)
virtual double value(double x) const
double myFunction(double x) const override
double getCoeff(int, int) override
std::vector< double > _coeffs2