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class ROOT::Math::Derivator

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library: libMathMore
#include "Derivator.h"

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class ROOT::Math::Derivator

Function Members (Methods)

public:

virtual	~Derivator()
ROOT::Math::Derivator	Derivator()
ROOT::Math::Derivator	Derivator(const ROOT::Math::IGenFunction& f)
ROOT::Math::Derivator	Derivator(const ROOT::Math::Derivator::GSLFuncPointer& f, void* p = 0)
double	Error() const
double	Eval(double x, double h = 1E-8) const
static double	Eval(const ROOT::Math::IGenFunction& f, double x, double h = 1E-8)
static double	Eval(const ROOT::Math::IMultiGenFunction& f, const double* x, unsigned int icoord = 0, double h = 1E-8)
static double	Eval(ROOT::Math::IParamFunction& f, double x, const double* p, unsigned int ipar = 0, double h = 1E-8)
static double	Eval(ROOT::Math::IParamMultiFunction& f, const double* x, const double* p, unsigned int ipar = 0, double h = 1E-8)
double	EvalBackward(double x, double h = 1E-8) const
static double	EvalBackward(const ROOT::Math::IGenFunction& f, double x, double h = 1E-8)
double	EvalCentral(double x, double h = 1E-8) const
static double	EvalCentral(const ROOT::Math::IGenFunction& f, double x, double h = 1E-8)
double	EvalForward(double x, double h = 1E-8) const
static double	EvalForward(const ROOT::Math::IGenFunction& f, double x, double h = 1E-8)
double	Result() const
void	SetFunction(const ROOT::Math::IGenFunction& f)
void	SetFunction(const ROOT::Math::Derivator::GSLFuncPointer& f, void* p = 0)
int	Status() const

private:

ROOT::Math::Derivator	Derivator(const ROOT::Math::Derivator&)
ROOT::Math::Derivator&	operator=(const ROOT::Math::Derivator&)

Data Members

private:

ROOT::Math::GSLDerivator*	fDerivator

Class Charts

Inheritance Inherited Members Includes Libraries

Class Charts

Function documentation

Derivator(const IGenFunction &f)

 allocate a  GSLDerivator

Derivator(const ROOT::Math::Derivator::GSLFuncPointer& f, void* p = 0)

 allocate a GSLDerivator

Derivator(const Derivator &)

void SetFunction(const ROOT::Math::IGenFunction& f)

void SetFunction(const ROOT::Math::Derivator::GSLFuncPointer& f, void* p = 0)

double Eval(double x, double h = 1E-8) const

double EvalCentral(double x, double h = 1E-8) const

double EvalForward(double x, double h = 1E-8) const

double EvalBackward(double x, double h = 1E-8) const

double Eval(const ROOT::Math::IGenFunction& f, double x, double h = 1E-8)

double EvalCentral(const ROOT::Math::IGenFunction& f, double x, double h = 1E-8)

double EvalForward(const ROOT::Math::IGenFunction& f, double x, double h = 1E-8)

double EvalBackward(const ROOT::Math::IGenFunction& f, double x, double h = 1E-8)

double Eval(const ROOT::Math::IMultiGenFunction& f, const double* x, unsigned int icoord = 0, double h = 1E-8)

 partial derivative for a  multi-dim function

double Eval(IParamFunction & f, double x, const double * p, unsigned int ipar, double h )

 derivative w.r.t parameter  for a one-dim param function

double Eval(IParamMultiFunction & f, const double * x, const double * p, unsigned int ipar, double h )

 derivative w.r.t parameter  for a multi-dim param function

double Result()

{ return fDerivator->Result(); }

double Error()

{ return fDerivator->Error(); }

int Status()

{ return fDerivator->Status(); }

Last update: root/mathmore:$Name: $:$Id: Derivator.cxx,v 1.5 2006/12/06 15:16:02 moneta Exp $
Copyright (c) 2004 ROOT Foundation, CERN/PH-SFT *

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