Interface (abstract class) for generic functions objects of one-dimension Provides a method to evaluate the function given a value (simple double) by implementing operator() (const double ).

In addition it defines the interface for copying functions via the pure virtual method Clone(). Derived classes must implement the pure virtual private method DoEval(double ) for the function evaluation in addition to Clone(). An interface for evaluating the function passing a vector (like for multidim functions) is also provided

Definition at line 112 of file IFunction.h.

Public Types
typedef IBaseFunctionOneDim	BaseFunc

Public Member Functions
virtual	~IBaseFunctionOneDim ()=default

virtual IBaseFunctionOneDim *	Clone () const =0
	Clone a function.

virtual bool	HasGradient () const

double	operator() (const double *x) const
	Evaluate the function at a point x[].

double	operator() (double x) const
	Evaluate the function at a point x.

Private Member Functions
virtual double	DoEval (double x) const =0
	implementation of the evaluation function. Must be implemented by derived classes

#include <Math/IFunction.h>

Inheritance diagram for ROOT::Math::IBaseFunctionOneDim:

[legend]

Member Typedef Documentation

◆ BaseFunc

typedef IBaseFunctionOneDim ROOT::Math::IBaseFunctionOneDim::BaseFunc

Definition at line 116 of file IFunction.h.

Constructor & Destructor Documentation

◆ ~IBaseFunctionOneDim()

virtual ROOT::Math::IBaseFunctionOneDim::~IBaseFunctionOneDim ( )

virtualdefault

Member Function Documentation

◆ Clone()

virtual IBaseFunctionOneDim * ROOT::Math::IBaseFunctionOneDim::Clone ( ) const

pure virtual

Clone a function.

Each derived class will implement their version of the private DoClone method.

Implemented in ROOT::Math::WrappedTF1, TF1_EvalWrapper, ROOT::Math::Functor1D, ROOT::Math::GradFunctor1D, ROOT::Math::IntegrandTransform, ROOT::Math::OneDimMultiFunctionAdapter< MultiFuncType >, ROOT::Math::OneDimParamFunctionAdapter< ParamFuncType >, ROOT::Math::WrappedFunction< Func >, ROOT::Math::WrappedMemFunction< FuncObj, MemFuncPtr >, ROOT::Math::CDFWrapper, ROOT::Math::PDFIntegral, ROOT::Math::Polynomial, ROOT::Math::VavilovAccurateCdf, ROOT::Math::VavilovAccuratePdf, ROOT::Math::VavilovAccurateQuantile, RooStats::PosteriorCdfFunction, RooStats::PosteriorFunction, and RooStats::PosteriorFunctionFromToyMC.

◆ DoEval()

virtual double ROOT::Math::IBaseFunctionOneDim::DoEval ( double x ) const

privatepure virtual

implementation of the evaluation function. Must be implemented by derived classes

Implemented in ROOT::Math::WrappedTF1, ROOT::Math::Functor1D, ROOT::Math::GradFunctor1D, ROOT::Math::IntegrandTransform, ROOT::Math::IParametricFunctionOneDim, ROOT::Math::OneDimMultiFunctionAdapter< MultiFuncType >, ROOT::Math::OneDimParamFunctionAdapter< ParamFuncType >, ROOT::Math::WrappedFunction< Func >, ROOT::Math::WrappedMemFunction< FuncObj, MemFuncPtr >, ROOT::Math::VavilovAccurateCdf, ROOT::Math::VavilovAccuratePdf, ROOT::Math::VavilovAccurateQuantile, RooStats::PosteriorCdfFunction, RooStats::PosteriorFunction, RooStats::PosteriorFunctionFromToyMC, TF1_EvalWrapper, ROOT::Math::CDFWrapper, and ROOT::Math::PDFIntegral.

◆ HasGradient()

virtual bool ROOT::Math::IBaseFunctionOneDim::HasGradient ( ) const

inlinevirtual

Reimplemented in ROOT::Math::IGradientFunctionOneDim.

Definition at line 134 of file IFunction.h.

◆ operator()() [1/2]

double ROOT::Math::IBaseFunctionOneDim::operator() ( const double * x ) const

inline

Evaluate the function at a point x[].

Compatible method with multi-dimensional functions.

Definition at line 130 of file IFunction.h.

◆ operator()() [2/2]

double ROOT::Math::IBaseFunctionOneDim::operator() ( double x ) const

inline

Evaluate the function at a point x.

Use the a pure virtual private method DoEval which must be implemented by sub-classes.

Definition at line 126 of file IFunction.h.

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

math/mathcore/inc/Math/IFunction.h

Public Types

Public Member Functions

Private Member Functions