org.apache.commons.math3.ode.nonstiff
Class GillIntegrator

java.lang.Object
  org.apache.commons.math3.ode.AbstractIntegrator
      org.apache.commons.math3.ode.nonstiff.RungeKuttaIntegrator
          org.apache.commons.math3.ode.nonstiff.GillIntegrator

All Implemented Interfaces:

FirstOrderIntegrator, ODEIntegrator

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:

$Id: GillIntegrator.java 3720 2012-03-16 16:34:17Z CardosoP $

See Also:

EulerIntegrator, ClassicalRungeKuttaIntegrator, MidpointIntegrator, ThreeEighthesIntegrator

Field Summary

Fields inherited from class org.apache.commons.math3.ode.AbstractIntegrator

isLastStep, resetOccurred, stepHandlers, stepSize, stepStart

Constructor Summary

GillIntegrator(double step)
Simple constructor.

Method Summary

Methods inherited from class org.apache.commons.math3.ode.nonstiff.RungeKuttaIntegrator

integrate

Methods inherited from class org.apache.commons.math3.ode.AbstractIntegrator

acceptStep, addEventHandler, addEventHandler, addStepHandler, clearEventHandlers, clearStepHandlers, computeDerivatives, getCurrentSignedStepsize, getCurrentStepStart, getEvaluations, getEventHandlers, getMaxEvaluations, getName, getStepHandlers, initIntegration, integrate, sanityChecks, setEquations, setMaxEvaluations, setStateInitialized

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