org.apache.commons.math3.ode.nonstiff
Class RungeKutta6Integrator

java.lang.Object
  org.apache.commons.math3.ode.AbstractIntegrator
      org.apache.commons.math3.ode.nonstiff.RungeKuttaIntegrator
          org.apache.commons.math3.ode.nonstiff.RungeKutta6Integrator

All Implemented Interfaces:

FirstOrderIntegrator, ODEIntegrator

public class RungeKutta6Integrator
extends RungeKuttaIntegrator

A 6th order Runge-Kutta Integrators

Implementation of a sixth order Runge-Kutta integrator for STELA.

Butcher array :

     0  |     0        0        0        0        0        0        0
    1/3 |    1/3       0        0        0        0        0        0
    2/3 |     0       2/3       0        0        0        0        0
    1/3 |    1/12     1/3     -1/12      0        0        0        0
    5/6 |   25/48   -55/24    35/48    15/8       0        0        0
    1/6 |    3/20   -11/24    -1/8      1/2      1/10      0        0
     1  | -261/260   33/13    43/156 -118/39    32/195   80/39      0
        |----------------------------------------------------------------
        |   13/200     0      11/40    11/40     4/25     4/25    13/200
 

Warning: This integrator uses a RungeKutta6StepInterpolator to perform interpolation between integration points. This interpolator currently performs a simple linear interpolation. As a result, resulting interpolated points may not be very accurate, particularly for high dynamics systems.

Since:

1.3

Version:

1.3

Author:

Cedric Dental

See Also:

RungeKuttaIntegrator

Concurrency :

not thread-safe

Field Summary

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

isLastStep, resetOccurred, stepHandlers, stepSize, stepStart

Constructor Summary

RungeKutta6Integrator(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

RungeKutta6Integrator

public RungeKutta6Integrator(double step)

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

Parameters:

step - integration step