datan

Class AuxGrad

java.lang.Object

datan.AuxGrad

public class AuxGrad
extends java.lang.Object

A class computing the gradient vector of a function of n variables

Author:

Siegmund Brandt.

Constructor Summary

Constructors

Constructor and Description
AuxGrad(DatanUserFunction muf, int[] list)

Method Summary

Methods

Modifier and Type	Method and Description
DatanVector	getGradient(DatanVector xin)

Methods inherited from class java.lang.Object

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

Constructor Detail

AuxGrad

public AuxGrad(DatanUserFunction muf,
       int[] list)

Parameters:

muf - user function which must be an extension of the abstract class DatanUserFunction.

list - array containing the elements of a list specifying which of the n variables are fixed (list element = 0) and which are adjustable (list element = 1).

Method Detail

getGradient

public DatanVector getGradient(DatanVector xin)

Parameters:

xin - position in n-space, where gradient is to be computed.

Returns:

gradient.