Package org.apache.commons.math.ode.nonstiff

Class ClassicalRungeKuttaIntegrator

java.lang.Object

org.apache.commons.math.ode.AbstractIntegrator

org.apache.commons.math.ode.nonstiff.RungeKuttaIntegrator

org.apache.commons.math.ode.nonstiff.ClassicalRungeKuttaIntegrator

All Implemented Interfaces:

FirstOrderIntegrator, ODEIntegrator

public class ClassicalRungeKuttaIntegrator
extends RungeKuttaIntegrator

This class implements the classical fourth order Runge-Kutta integrator for Ordinary Differential Equations (it is the most often used Runge-Kutta method).

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 |  0   1/2   0    0
    1  |  0    0    1    0
       |--------------------
       | 1/6  1/3  1/3  1/6
 

Since:

1.2

See Also:

• EulerIntegrator
• GillIntegrator
• MidpointIntegrator
• ThreeEighthesIntegrator

Constructor Summary

Constructors

Constructor	Description
ClassicalRungeKuttaIntegrator(double step)	Simple constructor.

Method Summary

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

integrate

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

addEventHandler, addStepHandler, clearEventHandlers, clearStepHandlers, computeDerivatives, getCurrentSignedStepsize, getCurrentStepStart, getEvaluations, getEventHandlers, getMaxEvaluations, getName, getStepHandlers, setMaxEvaluations

Methods inherited from class java.lang.Object

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

Constructor Details

ClassicalRungeKuttaIntegrator

public ClassicalRungeKuttaIntegrator(double step)

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

Parameters:

step - integration step