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

Class GillIntegrator

java.lang.Object
org.apache.commons.math.ode.AbstractIntegrator
org.apache.commons.math.ode.nonstiff.RungeKuttaIntegrator
org.apache.commons.math.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
See Also:

  • Constructor Details

    • GillIntegrator

      public GillIntegrator(double step)
      Simple constructor. Build a fourth-order Gill integrator with the given step.
      Parameters:
      step - integration step