#include <G4PolynomialPDF.hh>

Public Member Functions
	G4PolynomialPDF (size_t n=0, const double *coeffs=nullptr, G4double x1=0, G4double x2=1)

	~G4PolynomialPDF ()

void	SetNCoefficients (size_t n)

size_t	GetNCoefficients () const

void	SetCoefficients (const std::vector< G4double > &v)

G4double	GetCoefficient (size_t i) const

void	SetCoefficient (size_t i, G4double value)

void	SetCoefficients (size_t n, const G4double *coeffs)

void	SetDomain (G4double x1, G4double x2)

void	Normalize ()

G4double	Evaluate (G4double x, G4int ddxPower=0)

G4double	GetRandomX ()

void	SetTolerance (G4double tolerance)

G4double	GetX (G4double p, G4double x1, G4double x2, G4int ddxPower=0, G4double guess=1.e99, G4bool bisect=true)

G4double	EvalInverseCDF (G4double p)

G4double	Bisect (G4double p, G4double x1, G4double x2)

void	Dump ()

Protected Member Functions
G4bool	HasNegativeMinimum (G4double x1, G4double x2)

Protected Attributes
G4double	fX1

G4double	fX2

std::vector< G4double >	fCoefficients

G4bool	fChanged

G4double	fTolerance

Detailed Description

Definition at line 49 of file G4PolynomialPDF.hh.

Constructor & Destructor Documentation

G4PolynomialPDF::G4PolynomialPDF	(	size_t	n = `0`,
		const double *	coeffs = `nullptr`,
		G4double	x1 = `0`,
		G4double	x2 = `1`
	)

Definition at line 44 of file G4PolynomialPDF.cc.

References SetCoefficients(), and SetNCoefficients().

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G4PolynomialPDF::~G4PolynomialPDF ( )

inline

Definition at line 54 of file G4PolynomialPDF.hh.

Member Function Documentation

G4double G4PolynomialPDF::Bisect	(	G4double	p,
		G4double	x1,
		G4double	x2
	)

Definition at line 334 of file G4PolynomialPDF.cc.

References Evaluate(), fX1, fX2, GetX(), and z.

Referenced by GetX().

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void G4PolynomialPDF::Dump ( )

Definition at line 343 of file G4PolynomialPDF.cc.

References fX1, fX2, G4cout, G4endl, GetCoefficient(), and GetNCoefficients().

Referenced by Normalize().

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G4double G4PolynomialPDF::EvalInverseCDF ( G4double p )

inline

Definition at line 98 of file G4PolynomialPDF.hh.

References fX1, fX2, and GetX().

Referenced by GetRandomX().

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G4double G4PolynomialPDF::Evaluate	(	G4double	x,
		G4int	ddxPower = `0`
	)

Evaluate f(x) ddxPower = -1: f = CDF ddxPower = 0: f = PDF ddxPower = 1: f = (d/dx) PDF ddxPower = 2: f = (d2/dx2) PDF

Definition at line 109 of file G4PolynomialPDF.cc.

References fX1, G4cout, G4endl, GetCoefficient(), GetNCoefficients(), and x.

Referenced by Bisect(), and HasNegativeMinimum().

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G4double G4PolynomialPDF::GetCoefficient ( size_t i ) const

inline

Definition at line 60 of file G4PolynomialPDF.hh.

References fCoefficients.

Referenced by Dump(), Evaluate(), GetX(), HasNegativeMinimum(), and Normalize().

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size_t G4PolynomialPDF::GetNCoefficients ( ) const

inline

Definition at line 58 of file G4PolynomialPDF.hh.

References fCoefficients.

Referenced by Dump(), Evaluate(), GetX(), HasNegativeMinimum(), Normalize(), and SetCoefficients().

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G4double G4PolynomialPDF::GetRandomX ( )

Definition at line 181 of file G4PolynomialPDF.cc.

References EvalInverseCDF(), fChanged, fX1, fX2, G4cout, G4endl, G4UniformRand, HasNegativeMinimum(), and Normalize().

Referenced by G4PolarizationTransition::GenerateGammaCosTheta().

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G4double G4PolynomialPDF::GetX	(	G4double	p,
		G4double	x1,
		G4double	x2,
		G4int	ddxPower = `0`,
		G4double	guess = `1.e99`,
		G4bool	bisect = `true`
	)

Find a value of X between x1 and x2 at which f(x) = p. ddxPower = -1: f = CDF ddxPower = 0: f = PDF ddxPower = 1: f = (d/dx) PDF Uses the Newton-Raphson method to find the zero of f(x) - p. If not found in range, returns the nearest boundary

Definition at line 194 of file G4PolynomialPDF.cc.

References a, Bisect(), fTolerance, fX1, fX2, G4cout, G4endl, GetCoefficient(), and GetNCoefficients().

Referenced by Bisect(), EvalInverseCDF(), and HasNegativeMinimum().

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