net.sf.doodleproject.numerics4j.integration
Class TrapezoidalIntegrator.IterativeState

java.lang.Object
  net.sf.doodleproject.numerics4j.integration.TrapezoidalIntegrator.IterativeState

Enclosing class:

TrapezoidalIntegrator

static class TrapezoidalIntegrator.IterativeState
extends java.lang.Object

The internal state used during root finding.

Constructor Summary

TrapezoidalIntegrator.IterativeState(Function f, double low, double up)
Create a state object for the given initial root approximation.

Method Summary

int	getIterations() Access the current iteration.
double	getResult() Access the result of this root finding.
void	iterate() Perform the next iteration of finding a root.

Methods inherited from class java.lang.Object

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

Constructor Detail

TrapezoidalIntegrator.IterativeState

TrapezoidalIntegrator.IterativeState(Function f,
                                     double low,
                                     double up)
                               throws NumericException

Create a state object for the given initial root approximation.

Parameters:

f - the target function.

low - the lower limit of integration.

up - the upper limit of integration.

Throws:

NumericException - if function cannot be evaluated at the limits of integration.

Method Detail

getIterations

public int getIterations()

Access the current iteration.

Returns:

the current iteration.

iterate

public void iterate()
             throws NumericException

Perform the next iteration of finding a root. The current state is updated with the newly compuated root data.

Throws:

NumericException - if the function could not be evaluated.

getResult

public double getResult()

Access the result of this root finding.

Returns:

the root.