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Java Source Code / Java Documentation » PDF » PDFClown 0.0.5 » it.stefanochizzolini.clown.util.math

Source Cross Reference Class Diagram Java Document (Java Doc)

java.lang .Object

it.stefanochizzolini.clown.util.math .LUDecomposition

LUDecomposition

final public class LUDecomposition (Code)

LU matrix decomposition.

The LU decomposition is a lower triangular matrix L, an upper triangular matrix U, and a permutation size-long pivot vector.

Remarks

This class is a specialized adaptation from the original JAMA (Java Matrix) project, brought to the public domain by The MathWorks, Inc. and the National Institute of Standards and Technology (see JAMA home page).

author:
   Stefano Chizzolini
version:
   0.0.4, 07/12/07
since:
   0.0.4

Constructor Summary
public	LUDecomposition(SquareMatrix matrix)

Method Summary
public double	getDet() Gets the determinant.
public SquareMatrix	getL() Gets the lower triangular factor.
public int[]	getPivot() Gets the pivot permutation vector.
public SquareMatrix	getU() Gets the upper triangular factor.
public boolean	isNonsingular() Gets whether the matrix is non-singular.
public SquareMatrix	solve(SquareMatrix target) Solve [this] * [return] = [target] Parameters: target - Resulting matrix.

Constructor Detail

LUDecomposition
public LUDecomposition(SquareMatrix matrix)(Code)
	Parameters: matrix - Matrix to decompose.

Method Detail

getDet
public double getDet()(Code)
	Gets the determinant.

getL
public SquareMatrix getL()(Code)
	Gets the lower triangular factor.

getPivot
public int[] getPivot()(Code)
	Gets the pivot permutation vector.

getU
public SquareMatrix getU()(Code)
	Gets the upper triangular factor.

isNonsingular
public boolean isNonsingular()(Code)
	Gets whether the matrix is non-singular.

solve
public SquareMatrix solve(SquareMatrix target)(Code)
	Solve [this] * [return] = [target] Parameters: target - Resulting matrix. Solution. exception: IllegalArgumentException - Matrix sizes must agree. exception: RuntimeException - Matrix is singular.

Methods inherited from java.lang.Object

native protected Object clone() throws CloneNotSupportedException(Code)(Java Doc)
public boolean equals(Object obj)(Code)(Java Doc)
protected void finalize() throws Throwable(Code)(Java Doc)
final native public Class getClass()(Code)(Java Doc)
native public int hashCode()(Code)(Java Doc)
final native public void notify()(Code)(Java Doc)
final native public void notifyAll()(Code)(Java Doc)
public String toString()(Code)(Java Doc)
final native public void wait(long timeout) throws InterruptedException(Code)(Java Doc)
final public void wait(long timeout, int nanos) throws InterruptedException(Code)(Java Doc)
final public void wait() throws InterruptedException(Code)(Java Doc)

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