Class ButcherAdvance

java.lang.Object

cnuphys.adaptiveSwim.ButcherAdvance

All Implemented Interfaces:

IAdaptiveAdvance

public class ButcherAdvance
extends Object
implements IAdaptiveAdvance

Constructor Summary

Constructors

Constructor	Description
ButcherAdvance(int nDim, ButcherTableau tableau)

Method Summary

Modifier and Type	Method	Description
void	advance(double s, double[] u, double[] du, double h, IDerivative deriv, double[] uf, double eps, AdaptiveStepResult result)	Advance the solution by one step of the independent variable.

Methods inherited from class Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

ButcherAdvance

public ButcherAdvance(int nDim,
 ButcherTableau tableau)

Method Details

advance

public void advance(double s,
 double[] u,
 double[] du,
 double h,
 IDerivative deriv,
 double[] uf,
 double eps,
 AdaptiveStepResult result)

Description copied from interface: IAdaptiveAdvance

Advance the solution by one step of the independent variable.

Specified by:

advance in interface IAdaptiveAdvance

Parameters:

s - the current value of the independent variable

u - the current values of the state vector

du - the current values of the derivative (before advance)

h - the current step size

deriv - the function (interface) that can compute the derivatives. That is where the problem specificity resides .

uf - where the state vector at the next step will be stored (output)

eps - the overall tolerance (e.g., 1.0e-5) param result container for the new value of the independent variable and the new step size