mikera.matrixx.solve.impl

Class CholeskyLDUSolver

java.lang.Object

mikera.matrixx.solve.impl.CholeskyLDUSolver

public class CholeskyLDUSolver
extends Object

Author:

Peter Abeles

Field Summary

Fields

Modifier and Type	Field and Description
protected Matrix	A
protected int	numCols
protected int	numRows

Constructor Summary

Constructors

Constructor and Description
CholeskyLDUSolver()

Method Summary

Modifier and Type	Method and Description
AMatrix	invert() returns the matrix 'inv' equal to the inverse of the matrix that was decomposed.
double	quality()
boolean	setA(AMatrix _A)
AMatrix	solve(AMatrix B) Using the decomposition, finds the value of 'X' in the linear equation below: A*x = b where A has dimension of n by n, x and b are n by m dimension.

Methods inherited from class java.lang.Object

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

Field Detail

A

protected Matrix A

numRows

protected int numRows

numCols

protected int numCols

Constructor Detail

CholeskyLDUSolver

public CholeskyLDUSolver()

Method Detail

setA

public boolean setA(AMatrix _A)

quality

public double quality()

solve

public AMatrix solve(AMatrix B)

Using the decomposition, finds the value of 'X' in the linear equation below:
A*x = b
where A has dimension of n by n, x and b are n by m dimension.

*Note* that 'b' and 'x' can be the same matrix instance.

Parameters:

B - A matrix that is n by m. Not modified.

X - An n by m matrix where the solution is writen to. Modified.

invert

public AMatrix invert()

returns the matrix 'inv' equal to the inverse of the matrix that was decomposed.

Returns:

inverse of matrix that was decomposed