G4VGaussianQuadrature Class Reference

#include <G4VGaussianQuadrature.hh>

Inheritance diagram for G4VGaussianQuadrature:

Public Member Functions
	G4VGaussianQuadrature (const G4VGaussianQuadrature &)=delete
	G4VGaussianQuadrature (function pFunction)
G4double	GetAbscissa (G4int index) const
G4int	GetNumber () const
G4double	GetWeight (G4int index) const
G4VGaussianQuadrature &	operator= (const G4VGaussianQuadrature &)=delete
virtual	~G4VGaussianQuadrature ()

Protected Member Functions
G4double	GammaLogarithm (G4double xx)

Protected Attributes
G4double *	fAbscissa = nullptr
function	fFunction
G4int	fNumber = 0
G4double *	fWeight = nullptr

Detailed Description

Definition at line 47 of file G4VGaussianQuadrature.hh.

Constructor & Destructor Documentation

G4VGaussianQuadrature() [1/2]

G4VGaussianQuadrature::G4VGaussianQuadrature ( function  pFunction )

explicit

Definition at line 35 of file G4VGaussianQuadrature.cc.

  : fFunction(pFunction)
{}

~G4VGaussianQuadrature()

G4VGaussianQuadrature::~G4VGaussianQuadrature ( )

virtual

Definition at line 44 of file G4VGaussianQuadrature.cc.

{
  delete[] fAbscissa;
  delete[] fWeight;
}

References fAbscissa, and fWeight.

G4VGaussianQuadrature() [2/2]

G4VGaussianQuadrature::G4VGaussianQuadrature ( const G4VGaussianQuadrature &  )

delete

Member Function Documentation

GammaLogarithm()

G4double G4VGaussianQuadrature::GammaLogarithm ( G4double  xx )

protected

Definition at line 70 of file G4VGaussianQuadrature.cc.

{
  // Returns the value ln(Gamma(xx) for xx > 0.  Full accuracy is obtained for
  // xx > 1. For 0 < xx < 1. the reflection formula (6.1.4) can be used first.
  // (Adapted from Numerical Recipes in C)
 
  static const G4double cof[6] = { 76.18009172947146,     -86.50532032941677,
                                   24.01409824083091,     -1.231739572450155,
                                   0.1208650973866179e-2, -0.5395239384953e-5 };
  G4double x                   = xx - 1.0;
  G4double tmp                 = x + 5.5;
  tmp -= (x + 0.5) * std::log(tmp);
  G4double ser = 1.000000000190015;
 
  for(size_t j = 0; j <= 5; ++j)
  {
    x += 1.0;
    ser += cof[j] / x;
  }
  return -tmp + std::log(2.5066282746310005 * ser);
}

Referenced by G4GaussJacobiQ::G4GaussJacobiQ(), and G4GaussLaguerreQ::G4GaussLaguerreQ().

GetAbscissa()

G4double G4VGaussianQuadrature::GetAbscissa

(

G4int

index

)

const

Definition at line 53 of file G4VGaussianQuadrature.cc.

{
  return fAbscissa[index];
}

References fAbscissa.

GetNumber()

G4int G4VGaussianQuadrature::GetNumber

(

)

const

Definition at line 63 of file G4VGaussianQuadrature.cc.

{ return fNumber; }

References fNumber.

GetWeight()

G4double G4VGaussianQuadrature::GetWeight

(

G4int

index

)

const

Definition at line 58 of file G4VGaussianQuadrature.cc.

{
  return fWeight[index];
}

References fWeight.

operator=()

G4VGaussianQuadrature & G4VGaussianQuadrature::operator= ( const G4VGaussianQuadrature &  )

delete

Field Documentation

fAbscissa

G4double* G4VGaussianQuadrature::fAbscissa = nullptr

protected

Definition at line 71 of file G4VGaussianQuadrature.hh.

Referenced by G4GaussChebyshevQ::G4GaussChebyshevQ(), G4GaussHermiteQ::G4GaussHermiteQ(), G4GaussJacobiQ::G4GaussJacobiQ(), G4GaussLaguerreQ::G4GaussLaguerreQ(), G4GaussLegendreQ::G4GaussLegendreQ(), GetAbscissa(), G4GaussHermiteQ::Integral(), G4GaussJacobiQ::Integral(), G4GaussLaguerreQ::Integral(), G4GaussChebyshevQ::Integral(), G4GaussLegendreQ::Integral(), and ~G4VGaussianQuadrature().

fFunction

function G4VGaussianQuadrature::fFunction

protected

Definition at line 70 of file G4VGaussianQuadrature.hh.

Referenced by G4GaussLegendreQ::AccurateIntegral(), G4GaussHermiteQ::Integral(), G4GaussJacobiQ::Integral(), G4GaussLaguerreQ::Integral(), G4GaussChebyshevQ::Integral(), G4GaussLegendreQ::Integral(), and G4GaussLegendreQ::QuickIntegral().

fNumber

G4int G4VGaussianQuadrature::fNumber = 0

protected

Definition at line 73 of file G4VGaussianQuadrature.hh.

Referenced by G4GaussChebyshevQ::G4GaussChebyshevQ(), G4GaussHermiteQ::G4GaussHermiteQ(), G4GaussJacobiQ::G4GaussJacobiQ(), G4GaussLaguerreQ::G4GaussLaguerreQ(), G4GaussLegendreQ::G4GaussLegendreQ(), GetNumber(), G4GaussHermiteQ::Integral(), G4GaussJacobiQ::Integral(), G4GaussLaguerreQ::Integral(), G4GaussChebyshevQ::Integral(), and G4GaussLegendreQ::Integral().

fWeight

G4double* G4VGaussianQuadrature::fWeight = nullptr

protected

Definition at line 72 of file G4VGaussianQuadrature.hh.

Referenced by G4GaussChebyshevQ::G4GaussChebyshevQ(), G4GaussHermiteQ::G4GaussHermiteQ(), G4GaussJacobiQ::G4GaussJacobiQ(), G4GaussLaguerreQ::G4GaussLaguerreQ(), G4GaussLegendreQ::G4GaussLegendreQ(), GetWeight(), G4GaussHermiteQ::Integral(), G4GaussJacobiQ::Integral(), G4GaussLaguerreQ::Integral(), G4GaussChebyshevQ::Integral(), G4GaussLegendreQ::Integral(), and ~G4VGaussianQuadrature().

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The documentation for this class was generated from the following files:

• source/global/HEPNumerics/include/G4VGaussianQuadrature.hh
• source/global/HEPNumerics/src/G4VGaussianQuadrature.cc