Package org.jreliability.evaluator

Class IntegralEvaluator

java.lang.Object

org.jreliability.evaluator.IntegralEvaluator

public class IntegralEvaluator
extends Object

The IntegralEvaluator determines the integral of a Function using Romberg's method.

Field Summary

Fields

Modifier and Type	Field	Description
protected final double	epsilon	The allowed error / epsilon for Romberg's method.

Constructor Summary

Constructors

Constructor	Description
IntegralEvaluator()	Constructs the IntegralEvaluator with the epsilon value 1.0E-8.
IntegralEvaluator(double epsilon)	Constructs the IntegralEvaluator.

Method Summary

Modifier and Type	Method	Description
double	evaluate(Function f, double a, double b)	Calculates the integral from a to b.

Methods inherited from class java.lang.Object

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

Field Details

epsilon

protected final double epsilon

The allowed error / epsilon for Romberg's method.

Constructor Details

IntegralEvaluator

public IntegralEvaluator()

Constructs the IntegralEvaluator with the epsilon value 1.0E-8.

IntegralEvaluator

public IntegralEvaluator(double epsilon)

Constructs the IntegralEvaluator.

Parameters:

epsilon - the allowed error for Romberg's method.

Method Details

evaluate

public double evaluate(Function f,
 double a,
 double b)

Calculates the integral from a to b.

Parameters:

f - the function to be integrated

a - the lower bound

b - the upper bound

Returns:

the value of the integral from a to b