org.spaceroots.mantissa.ode

Class GillIntegrator

java.lang.Object

org.spaceroots.mantissa.ode.RungeKuttaIntegrator

org.spaceroots.mantissa.ode.GillIntegrator

All Implemented Interfaces:

FirstOrderIntegrator

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)

See Also:

EulerIntegrator, ClassicalRungeKuttaIntegrator, MidpointIntegrator, ThreeEighthesIntegrator

Constructor Summary

Constructors

Constructor and Description
GillIntegrator(double step) Simple constructor.

Method Summary

Modifier and Type	Method and Description
java.lang.String	getName() Get the name of the method.

Methods inherited from class org.spaceroots.mantissa.ode.RungeKuttaIntegrator

addSwitchingFunction, getCurrentStepsize, getCurrentStepStart, getStepHandler, integrate, setStepHandler

Methods inherited from class java.lang.Object

equals, 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

Method Detail

getName

public java.lang.String getName()

Get the name of the method.

Specified by:

getName in interface FirstOrderIntegrator

Specified by:

getName in class RungeKuttaIntegrator

Returns:

name of the method