ROOT::Math::VirtualIntegratorOneDim Class Reference

Interface (abstract) class for 1D numerical integration It must be implemented by the concrate 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 111 of file VirtualIntegrator.h.

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

#include <Math/VirtualIntegrator.h>

Inheritance diagram for ROOT::Math::VirtualIntegratorOneDim:

Collaboration diagram for ROOT::Math::VirtualIntegratorOneDim:

Constructor & Destructor Documentation

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

inlinevirtual

destructor: no operation

Definition at line 116 of file VirtualIntegrator.h.

Member Function Documentation

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

pure virtual

evaluate integral

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

Referenced by ROOT::Math::IntegratorOneDim::Integral().

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

pure virtual

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

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

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

pure virtual

evaluate integral with singular points

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

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

pure virtual

evaluate Cauchy integral

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

Referenced by ROOT::Math::IntegratorOneDim::IntegralCauchy().

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

pure virtual

evaluate integral over the (-inf, b)

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

Referenced by ROOT::Math::IntegratorOneDim::IntegralLow().

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

pure virtual

evaluate integral over the (a, +inf)

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

Referenced by ROOT::Math::IntegratorOneDim::IntegralUp().

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

Referenced by ROOT::Math::IntegratorOneDim::Options(), and Type().

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

pure virtual

set integration function

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

Referenced by ROOT::Math::IntegratorOneDim::SetFunction().

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

Definition at line 150 of file VirtualIntegrator.h.

Referenced by ROOT::Math::IntegratorOneDim::SetOptions().

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

inlinevirtual

Definition at line 144 of file VirtualIntegrator.h.

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

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