com.imsl.test.example.math

Class GenMinResEx4

java.lang.Object

com.imsl.test.example.math.GenMinResEx4

All Implemented Interfaces:

GenMinRes.Function, GenMinRes.Preconditioner

public class GenMinResEx4
extends Object
implements GenMinRes.Preconditioner

Solves a small linear system stored in sparse form with preconditioning.

A solution to a small linear system in which the coefficient matrix has been stored in SparseMatrix form is found. An initial guess of ones is set before solving the system and preconditioning is used.

See Also:

Code, Output

Constructor Summary

Constructors

Constructor and Description
GenMinResEx4()

Method Summary

Modifier and Type	Method and Description
void	amultp(double[] p, double[] z) Obtains the multiplication of the matrix a and the input p.
static void	main(String[] args)
void	preconditioner(double[] r, double[] z) Defines a preconditioning operation for the problem.

Methods inherited from class java.lang.Object

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

Constructor Detail

GenMinResEx4

public GenMinResEx4()

Method Detail

amultp

public void amultp(double[] p,
                   double[] z)

Obtains the multiplication of the matrix a and the input p. The result is returned in z.

Specified by:

amultp in interface GenMinRes.Function

Parameters:

p - a double array with p.length=a[0].length

z - a double array

preconditioner

public void preconditioner(double[] r,
                           double[] z)

Defines a preconditioning operation for the problem.

Specified by:

preconditioner in interface GenMinRes.Preconditioner

Parameters:

r -

z -

main

public static void main(String[] args)
                 throws Exception

Throws:

Exception