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ROOT::Math::VirtualIntegrator Class Referenceabstract

Abstract class for all numerical integration methods (1D and multi-dim) Interface defining the common methods for the numerical integrator classes of one and multi dimensions The derived class VirtualIntegratorOneDim defines the methods for one-dimensional integration.

The derived class VirtualIntegratorMultiDim defines the method for multi-dimensional integration. The concrete classes for one dimension (e.g. GSLIntegrator) or multi-dimension (e.g. GSLMCIntegrator) can be created using the plug-in manager. Users should not use directly this class but the concrete classes ROOT::Math::IntegratorOneDim or ROOT::Math::IntegratorMultiDim

Definition at line 49 of file VirtualIntegrator.h.

## Public Member Functions

virtual ~VirtualIntegrator ()

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::VirtualIntegrator:
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## ◆ ~VirtualIntegrator()

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

Definition at line 54 of file VirtualIntegrator.h.

## ◆ Error()

 virtual double ROOT::Math::VirtualIntegrator::Error ( ) const
pure virtual

return the estimate of the absolute Error of the last Integral calculation

## ◆ NEval()

 virtual int ROOT::Math::VirtualIntegrator::NEval ( ) const
inlinevirtual

return number of function evaluations in calculating the integral (if integrator do not implement this function returns -1)

Definition at line 85 of file VirtualIntegrator.h.

## ◆ Result()

 virtual double ROOT::Math::VirtualIntegrator::Result ( ) const
pure virtual

return the Result of the last Integral calculation

## ◆ SetAbsTolerance()

 virtual void ROOT::Math::VirtualIntegrator::SetAbsTolerance ( double )
pure virtual

set the desired absolute Error

## ◆ SetRelTolerance()

 virtual void ROOT::Math::VirtualIntegrator::SetRelTolerance ( double )
pure virtual

set the desired relative Error

## ◆ Status()

 virtual int ROOT::Math::VirtualIntegrator::Status ( ) const
pure virtual

return the Error Status of the last Integral calculation

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