Package edu.cmu.tetrad.util

Class Integrator

java.lang.Object

edu.cmu.tetrad.util.Integrator

public class Integrator
extends Object

Integrates under a function from one endpoint to another.

Author:

josephramsey

Constructor Summary

Constructors

Constructor	Description
Integrator()

Method Summary

Modifier and Type	Method	Description
static double	getArea(Function f, double x1, double x2, int numIntervals)	Finds the area under function f between x1 and x2 using Simpson's rule.

Methods inherited from class java.lang.Object

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

Constructor Details

Integrator

public Integrator()

Method Details

getArea

public static double getArea(Function f,
 double x1,
 double x2,
 int numIntervals)

Finds the area under function f between x1 and x2 using Simpson's rule. Divides the interval [x1, x2] into numIntervals subintervals.

Parameters:

f - a Function object.

x1 - the lower cutoff

x2 - the upper cutoff

numIntervals - the number of intervals to divide the interval [x1, x2] into for integrating.

Returns:

the area.