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ROOT::Math::VirtualIntegratorOneDim Class Referenceabstract

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

virtual ~VirtualIntegratorOneDim ()
 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:
[legend]

Constructor & Destructor Documentation

◆ ~VirtualIntegratorOneDim()

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

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:

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