org.spaceroots.mantissa.quadrature.scalar
Class EnhancedSimpsonIntegrator

java.lang.Object
  org.spaceroots.mantissa.quadrature.scalar.EnhancedSimpsonIntegrator

All Implemented Interfaces:

SampledFunctionIntegrator

public class EnhancedSimpsonIntegrator

extends Object

implements SampledFunctionIntegrator

This class implements an enhanced Simpson-like integrator.

A traditional Simpson integrator is based on a quadratic approximation of the function on three equally spaced points. This integrator does the same thing but can handle non-equally spaced points. If it is used on a regular sample, it behaves exactly as a traditional Simpson integrator.

Version:

$Id: EnhancedSimpsonIntegrator.java 1237 2002-03-20 21:01:57Z luc $

Author:

L. Maisonobe

Constructor Summary

EnhancedSimpsonIntegrator()

Method Summary

double

integrate(SampledFunctionIterator iter) Integrate a sample over its overall range

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

EnhancedSimpsonIntegrator

public EnhancedSimpsonIntegrator()

Method Detail

integrate

public double integrate(SampledFunctionIterator iter)
                 throws ExhaustedSampleException,
                        FunctionException

Description copied from interface: SampledFunctionIntegrator

Integrate a sample over its overall range

Specified by:

integrate in interface SampledFunctionIntegrator

Parameters:

iter - iterator over the sample to integrate

Returns:

value of the integral over the sample range

Throws:

FunctionException - if the underlying sampled function throws one

ExhaustedSampleException - if the sample does not have enough points for the integration scheme