ROOT::Math::VirtualIntegratorOneDim Class Reference

Interface (abstract) class for 1D numerical integration It must be implemented by the concrete Integrator classes like ROOT::Math::GSLIntegrator.

Plug-in's exist in ROOT to be able to instantiate the derived classes via the plug-in manager. Users should not use directly this class but the concrete classes ROOT::Math::IntegratorOneDim.

Definition at line 101 of file VirtualIntegrator.h.

Public Member Functions
	~VirtualIntegratorOneDim () override
	destructor: no operation
virtual double	Integral ()=0
	evaluate un-defined integral (between -inf, + inf)
virtual double	Integral (const std::vector< double > &pts)=0
	evaluate integral with singular points
virtual double	Integral (double a, double b)=0
	evaluate integral
virtual double	IntegralCauchy (double a, double b, double c)=0
	evaluate Cauchy integral
virtual double	IntegralLow (double b)=0
	evaluate integral over the (-inf, b)
virtual double	IntegralUp (double a)=0
	evaluate integral over the (a, +inf)
virtual ROOT::Math::IntegratorOneDimOptions	Options () const =0
	get the option used for the integration must be implemented by derived class
virtual void	SetFunction (const IGenFunction &)=0
	set integration function
virtual void	SetOptions (const ROOT::Math::IntegratorOneDimOptions &opt)
	set the options (should be re-implemented by derived classes -if more options than tolerance exist
virtual ROOT::Math::IntegrationOneDim::Type	Type () const
	return type of integrator
Public Member Functions inherited from ROOT::Math::VirtualIntegrator
virtual	~VirtualIntegrator ()
	destructor: no operation
virtual double	Error () const =0
	return the estimate of the absolute Error of the last Integral calculation
virtual int	NEval () const
	return number of function evaluations in calculating the integral (if integrator do not implement this function returns -1)
virtual double	Result () const =0
	return the Result of the last Integral calculation
virtual void	SetAbsTolerance (double)=0
	set the desired absolute Error
virtual void	SetRelTolerance (double)=0
	set the desired relative Error
virtual int	Status () const =0
	return the Error Status of the last Integral calculation

#include <Math/VirtualIntegrator.h>

Inheritance diagram for ROOT::Math::VirtualIntegratorOneDim:

Constructor & Destructor Documentation

~VirtualIntegratorOneDim()

ROOT::Math::VirtualIntegratorOneDim::~VirtualIntegratorOneDim ( )

inlineoverride

destructor: no operation

Definition at line 106 of file VirtualIntegrator.h.

Member Function Documentation

Integral() [1/3]

virtual double ROOT::Math::VirtualIntegratorOneDim::Integral ( )

pure virtual

evaluate un-defined integral (between -inf, + inf)

Implemented in ROOT::Math::GaussIntegrator, and ROOT::Math::GSLIntegrator.

Integral() [2/3]

virtual double ROOT::Math::VirtualIntegratorOneDim::Integral ( const std::vector< double > &  pts )

pure virtual

evaluate integral with singular points

Implemented in ROOT::Math::GaussIntegrator, and ROOT::Math::GSLIntegrator.

Integral() [3/3]

virtual double ROOT::Math::VirtualIntegratorOneDim::Integral ( double  a, double  b  )

pure virtual

evaluate integral

Implemented in ROOT::Math::GaussIntegrator, and ROOT::Math::GSLIntegrator.

IntegralCauchy()

virtual double ROOT::Math::VirtualIntegratorOneDim::IntegralCauchy ( double  a, double  b, double  c  )

pure virtual

evaluate Cauchy integral

Implemented in ROOT::Math::GaussIntegrator, and ROOT::Math::GSLIntegrator.

IntegralLow()

virtual double ROOT::Math::VirtualIntegratorOneDim::IntegralLow ( double  b )

pure virtual

evaluate integral over the (-inf, b)

Implemented in ROOT::Math::GaussIntegrator, and ROOT::Math::GSLIntegrator.

IntegralUp()

virtual double ROOT::Math::VirtualIntegratorOneDim::IntegralUp ( double  a )

pure virtual

evaluate integral over the (a, +inf)

Implemented in ROOT::Math::GaussIntegrator, and ROOT::Math::GSLIntegrator.

Options()

virtual ROOT::Math::IntegratorOneDimOptions ROOT::Math::VirtualIntegratorOneDim::Options ( ) const

pure virtual

get the option used for the integration must be implemented by derived class

Implemented in ROOT::Math::GaussIntegrator, ROOT::Math::GaussLegendreIntegrator, and ROOT::Math::GSLIntegrator.

SetFunction()

virtual void ROOT::Math::VirtualIntegratorOneDim::SetFunction ( const IGenFunction &  )

pure virtual

set integration function

Implemented in ROOT::Math::GaussIntegrator, and ROOT::Math::GSLIntegrator.

SetOptions()

virtual void ROOT::Math::VirtualIntegratorOneDim::SetOptions ( const ROOT::Math::IntegratorOneDimOptions &  opt )

inlinevirtual

set the options (should be re-implemented by derived classes -if more options than tolerance exist

Reimplemented in ROOT::Math::GaussIntegrator, ROOT::Math::GaussLegendreIntegrator, and ROOT::Math::GSLIntegrator.

Definition at line 140 of file VirtualIntegrator.h.

Type()

virtual ROOT::Math::IntegrationOneDim::Type ROOT::Math::VirtualIntegratorOneDim::Type ( ) const

inlinevirtual

return type of integrator

Definition at line 134 of file VirtualIntegrator.h.

Libraries for ROOT::Math::VirtualIntegratorOneDim:

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

• math/mathcore/inc/Math/VirtualIntegrator.h