com.numericalmethod.suanshu.matrix.doubles.matrixtype.sparse.solver.iterative.preconditioner
Class IdentityPreconditioner

java.lang.Object
  com.numericalmethod.suanshu.matrix.doubles.matrixtype.sparse.solver.iterative.preconditioner.IdentityPreconditioner

All Implemented Interfaces:

Preconditioner

public class IdentityPreconditioner
extends java.lang.Object
implements Preconditioner

This identity preconditioner is used when no preconditioning is applied. This is used as the default preconditioner for unpreconditioned linear system solving algorithm.

Constructor Summary

IdentityPreconditioner()

Method Summary

Vector	solve(Vector x) Returns the input Vector x.
Vector	transposeSolve(Vector x) Returns the input Vector x.

Methods inherited from class java.lang.Object

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

Constructor Detail

IdentityPreconditioner

public IdentityPreconditioner()

Method Detail

solve

public Vector solve(Vector x)

Returns the input Vector x.

Specified by:

solve in interface Preconditioner

Parameters:

x - the input Vector

Returns:

x

transposeSolve

public Vector transposeSolve(Vector x)

Returns the input Vector x.

Specified by:

transposeSolve in interface Preconditioner

Parameters:

x - the input Vector

Returns:

x