org.jutil.math.matrix
Interface QRDecomposer

All Known Implementing Classes:

HouseholderQRDecomposer

public interface QRDecomposer

A class of objects that compute the QR factorization of a matrix.

Field Summary
static java.lang.String	CVS_REVISION

 

Method Summary
abstract  QRDecomposition	decompose(Matrix matrix)           Return a QR factorization of this matrix.

 

Field Detail

CVS_REVISION

public static final java.lang.String CVS_REVISION

decompose

public abstract QRDecomposition decompose(Matrix matrix)

Return a QR factorization of this matrix.

Parameters:

matrix - The matrix to decompose.

Specifications:

public behavior
requires matrix != null;
requires matrix.getNbRows() >= matrix.getNbColumns();
ensures \result != null;
ensures (* \result.Q().times(\result.R()).equals(matrix) *);
ensures \result .R().getNbRows() == matrix.getNbRows();
ensures \result .R().getNbColumns() == matrix.getNbColumns();