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

java.lang.Object
  extended by org.apache.commons.math3.ode.AbstractIntegrator
      extended by org.apache.commons.math3.ode.nonstiff.RungeKuttaIntegrator
          extended by 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 1416643 2012-12-03 19:37:14Z tn $
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


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