org.jscience.mathematics.analysis.quadrature
Class TrapezoidNDIntegratorSampler

java.lang.Object
  org.jscience.mathematics.analysis.quadrature.TrapezoidNDIntegratorSampler

All Implemented Interfaces:

SampledMappingIterator

public class TrapezoidNDIntegratorSampler
extends java.lang.Object
implements SampledMappingIterator

This class implements a trapezoid integrator as a sample.

A trapezoid integrator is a very simple one that assumes the function is constant over the integration step. Since it is very simple, this algorithm needs very small steps to achieve high accuracy, and small steps lead to numerical errors and instabilities.

This algorithm is almost never used and has been included in this package only as a simple template for more useful integrators.

See Also:

TrapezoidIntegrator

Constructor Summary

TrapezoidNDIntegratorSampler(SampledMappingIterator iter)
Constructor.

Method Summary

int	getDimension()
SampledMapping	getSampledMapping() DOCUMENT ME!
boolean	hasNext() Check if the iterator can provide another point.
ValuedPair	next() Get the next point of a sampled function.
void	remove() DOCUMENT ME!

Methods inherited from class java.lang.Object

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

Constructor Detail

TrapezoidNDIntegratorSampler

public TrapezoidNDIntegratorSampler(SampledMappingIterator iter)
                             throws ExhaustedSampleException,
                                    MappingException

Constructor. Build an integrator from an underlying sample iterator.

Parameters:

iter - iterator over the base function

Throws:

ExhaustedSampleException

MappingException

Method Detail

getSampledMapping

public SampledMapping getSampledMapping()

Description copied from interface: SampledMappingIterator

DOCUMENT ME!

Specified by:

getSampledMapping in interface SampledMappingIterator

Returns:

DOCUMENT ME!

hasNext

public boolean hasNext()

Description copied from interface: SampledMappingIterator

Check if the iterator can provide another point.

Specified by:

hasNext in interface SampledMappingIterator

Returns:

true if the iterator can provide another point.

getDimension

public int getDimension()

next

public ValuedPair next()
                throws ExhaustedSampleException,
                       MappingException

Description copied from interface: SampledMappingIterator

Get the next point of a sampled function.

Specified by:

next in interface SampledMappingIterator

Returns:

the next point of the sampled function

Throws:

ExhaustedSampleException - if the sample has been exhausted

MappingException - if the underlying function throws one

remove

public void remove()

Description copied from interface: SampledMappingIterator

DOCUMENT ME!

Specified by:

remove in interface SampledMappingIterator