org.apache.commons.math.ode
Class GillIntegrator

java.lang.Object
  org.apache.commons.math.ode.RungeKuttaIntegrator
      org.apache.commons.math.ode.GillIntegrator

All Implemented Interfaces:

FirstOrderIntegrator

public class GillIntegrator
extends RungeKuttaIntegrator

This class implements the Gill fourth order Runge-Kutta integrator for Ordinary Differential Equations .

This method is an explicit Runge-Kutta method, its Butcher-array is the following one :

    0  |    0        0       0      0
   1/2 |   1/2       0       0      0
   1/2 | (q-1)/2  (2-q)/2    0      0
    1  |    0       -q/2  (2+q)/2   0
       |-------------------------------
       |   1/6    (2-q)/6 (2+q)/6  1/6
 

where q = sqrt(2)

Since:

1.2

Version:

$Revision: 620312 $ $Date: 2008-02-10 12:28:59 -0700 (Sun, 10 Feb 2008) $

See Also:

EulerIntegrator, ClassicalRungeKuttaIntegrator, MidpointIntegrator, ThreeEighthesIntegrator

Field Summary

Fields inherited from class org.apache.commons.math.ode.RungeKuttaIntegrator

switchesHandler

Constructor Summary

GillIntegrator(double step)
Simple constructor.

Method Summary

java.lang.String

getName() Get the name of the method.

Methods inherited from class org.apache.commons.math.ode.RungeKuttaIntegrator

addSwitchingFunction, getCurrentSignedStepsize, getCurrentStepStart, getStepHandler, integrate, setStepHandler

Methods inherited from class java.lang.Object

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

Constructor Detail

GillIntegrator

public GillIntegrator(double step)

Simple constructor. Build a fourth-order Gill integrator with the given step.

Parameters:

step - integration step

Method Detail

getName

public java.lang.String getName()

Get the name of the method.

Specified by:

getName in interface FirstOrderIntegrator

Specified by:

getName in class RungeKuttaIntegrator

Returns:

name of the method