vec_math
Class VectorRoot

java.lang.Object
  vec_math.VectorRoot

public class VectorRoot
extends Object

A class to find a multidimensional root of a set of equations using a multidimension newton-raphson, according to Num. Rec. p379ff.

Field Summary

private static int	MAXITERATIONS Maximum number of iterations.
private static double	MAXOFF Quadratic tolerance allowed for the solution offset.
private static double	MAXSTEP Quadratic tolerance allowed for the solution offset.

Constructor Summary

VectorRoot()

Method Summary

static VectorG	newton(VectorG start, VectorDifferentiable f) Does a multidimensional root-finding of the VectorDifferentiable stated.
static VectorG	newton(VectorG start, VectorDifferentiable f, int maxiter) Does a multidimensional root-finding of the VectorDifferentiable stated.
static VectorG	newton(VectorG start, VectorDifferentiable f, int maxiter, double maxoff, double maxstep) Does a multidimensional root-finding of the VectorDifferentiable stated.

Methods inherited from class java.lang.Object

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

Field Detail

MAXITERATIONS

private static final int MAXITERATIONS

Maximum number of iterations.

See Also:

Constant Field Values

MAXOFF

private static final double MAXOFF

Quadratic tolerance allowed for the solution offset.

See Also:

Constant Field Values

MAXSTEP

private static final double MAXSTEP

Quadratic tolerance allowed for the solution offset.

See Also:

Constant Field Values

Constructor Detail

VectorRoot

public VectorRoot()

Method Detail

newton

public static final VectorG newton(VectorG start,
                                   VectorDifferentiable f)

Does a multidimensional root-finding of the VectorDifferentiable stated. The input Vector to start at must be sufficient close to the root for this method to converge. If no convergence is reaced, null is returned.

newton

public static final VectorG newton(VectorG start,
                                   VectorDifferentiable f,
                                   int maxiter)

Does a multidimensional root-finding of the VectorDifferentiable stated. The input Vector to start at must be sufficient close to the root for this method to converge. If no convergence is reaced, null is returned.

newton

public static final VectorG newton(VectorG start,
                                   VectorDifferentiable f,
                                   int maxiter,
                                   double maxoff,
                                   double maxstep)

Does a multidimensional root-finding of the VectorDifferentiable stated. The input Vector to start at must be sufficient close to the root for this method to converge. If no convergence is reaced, null is returned.