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

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.MidpointIntegrator
All Implemented Interfaces:
FirstOrderIntegrator, ODEIntegrator

public class MidpointIntegrator
extends RungeKuttaIntegrator

This class implements a second 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
   1/2 | 1/2   0
       |----------
       |  0    1
 

Since:
1.2
Version:
$Id: MidpointIntegrator.java 1416643 2012-12-03 19:37:14Z tn $
See Also:
EulerIntegrator, ClassicalRungeKuttaIntegrator, GillIntegrator

Field Summary
 
Fields inherited from class org.apache.commons.math3.ode.AbstractIntegrator
isLastStep, resetOccurred, stepHandlers, stepSize, stepStart
 
Constructor Summary
MidpointIntegrator(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, getEvaluationsCounter, getEventHandlers, getExpandable, 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

MidpointIntegrator

public MidpointIntegrator(double step)
Simple constructor. Build a midpoint integrator with the given step.

Parameters:
step - integration step


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