jhypercomplex.matrices

Class HadamardMatrix

java.lang.Object

jhypercomplex.matrices.Matrix

jhypercomplex.matrices.SquareMatrix

jhypercomplex.matrices.HadamardMatrix

public class HadamardMatrix
extends SquareMatrix

Copyright © 2005-2015 by Markus Maute. All rights reserved.

Author:

Markus Maute (http:///www.jalgebra.com)

Constructor Summary

Constructors

Constructor and Description
HadamardMatrix(int order, int nr)

Method Summary

Methods

Modifier and Type	Method and Description
static int	getNumberOfHadamardMatrices(int order)
static boolean	isHadamardMatrix(SquareMatrix mat) The condition for a matrix to be a Hadamard M matrix is: M_m * (M^t)_n = 1, for all m,n.

Methods inherited from class jhypercomplex.matrices.SquareMatrix

getDeterminant, getDeterminant, getDeterminant, setComponents

Methods inherited from class jhypercomplex.matrices.Matrix

getIsNumerical, getMatrix, getMatrixAsHtml, getMatrixAsHtml, getProduct, getSubMatrix, getTranspose, setIsNumerical, setIsNumerical

Methods inherited from class java.lang.Object

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

Constructor Detail

HadamardMatrix

public HadamardMatrix(int order,
              int nr)
               throws java.lang.Exception

Parameters:

order - Order of the matrix.

nr - n-th matrix of a given order (nr = 1,2,...).

Throws:

java.lang.Exception

Method Detail

getNumberOfHadamardMatrices

public static int getNumberOfHadamardMatrices(int order)
                                       throws java.lang.Exception

Parameters:

order - Order of the matrix.

Returns:

Number of inequivalent Hadamard matrices of a given order.

Throws:

java.lang.Exception

isHadamardMatrix

public static boolean isHadamardMatrix(SquareMatrix mat)
                                throws java.lang.Exception

The condition for a matrix to be a Hadamard M matrix is: M_m * (M^t)_n = 1, for all m,n.

Parameters:

mat - Matrix.

Returns:

'true' if matrix is a Hadamard matrix, 'false' else.

Throws:

java.lang.Exception