class ROOT::Math::Chebyshev

Function Members (Methods)

public:

virtual	~Chebyshev()
ROOT::Math::Chebyshev	Chebyshev(const ROOT::Math::IGenFunction& f, double a, double b, size_t n)
ROOT::Math::Chebyshev	Chebyshev(ROOT::Math::GSLFuncPointer f, void* p, double a, double b, size_t n)
ROOT::Math::Chebyshev*	Deriv()
pair<double,double>	EvalErr(double x) const
pair<double,double>	EvalErr(double x, size_t n) const
ROOT::Math::Chebyshev*	Integral()
double	operator()(double x) const
double	operator()(double x, size_t n) const

protected:

void	Initialize(ROOT::Math::GSLFuncPointer f, void* params, double a, double b)

private:

ROOT::Math::Chebyshev	Chebyshev(size_t n)
ROOT::Math::Chebyshev	Chebyshev(const ROOT::Math::Chebyshev&)
ROOT::Math::Chebyshev&	operator=(const ROOT::Math::Chebyshev&)

Data Members

private:

ROOT::Math::GSLFunctionWrapper*	fFunction
size_t	fOrder
ROOT::Math::GSLChebSeries*	fSeries

Class Charts

Inheritance Inherited Members Includes Libraries

Function documentation

Chebyshev(const ROOT::Math::IGenFunction& f, double a, double b, size_t n)

 constructor from function (IGenFunction type) and interval [a,b] and series size n

Chebyshev(ROOT::Math::GSLFuncPointer f, void* p, double a, double b, size_t n)

 constructor from function (GSL type) and interval [a,b] and series size n

~Chebyshev()

 desctructor (clean up resources)

Chebyshev(size_t n)

 constructor passing only size (need to initialize setting the function afterwards)

Chebyshev(const Chebyshev & /*cheb */ )

 cannot copy series because don't know original function

void Initialize(ROOT::Math::GSLFuncPointer f, void* params, double a, double b)

 initialize by passing a function and interval [a,b]
 delete previous existing function pointer

double operator()(double x) const

 evaluate the approximation

std::pair<double, double> EvalErr(double x) const

 evaluate returning result and error

double operator()(double x, size_t n) const

 evaluate at most order n ( truncate the series)

std::pair<double, double> EvalErr(double x, size_t n) const

 evaluate at most order n ( truncate the series) returning resutl + error

Chebyshev * Deriv()

 calculate derivative. Returna pointer to a new series
 used auto_ptr (supprseed since not good support on some compilers)

Chebyshev * Integral()

 integral (return pointer)

Last update: root/mathmore:$Name: $:$Id: Chebyshev.cxx,v 1.6 2006/11/17 18:26:50 moneta Exp $
Copyright (c) 2004 ROOT Foundation, CERN/PH-SFT *

This page has been automatically generated. If you have any comments or suggestions about the page layout send a mail to ROOT support, or contact the developers with any questions or problems regarding ROOT.