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/*
* Copyright (C) 2003-2006 Bjørn-Ove Heimsund
*
* This file is part of MTJ.
*
* This library is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as published by the
* Free Software Foundation; either version 2.1 of the License, or (at your
* option) any later version.
*
* This library is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License
* for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this library; if not, write to the Free Software Foundation,
* Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
package no.uib.cipr.matrix;
/**
* Upper triangular banded matrix. The same storage as
* {@link no.uib.cipr.matrix.BandMatrix BandMatrix}, but without subdiagonals.
*/
public class UpperTriangBandMatrix extends AbstractTriangBandMatrix {
/**
* Constructor for UpperTriangBandMatrix
*
* @param n
* Size of the matrix. Since the matrix must be square, this
* equals both the number of rows and columns
* @param kd
* Number of bands above the main diagonal (superdiagonals)
*/
public UpperTriangBandMatrix(int n, int kd) {
super(n, 0, kd, UpLo.Upper, Diag.NonUnit);
}
/**
* Constructor for UpperTriangBandMatrix
*
* @param A
* Matrix to copy contents from. Only the parts of A
* that lie within the allocated band are copied over, the rest
* is ignored
* @param kd
* Number of bands above the main diagonal (superdiagonals)
*/
public UpperTriangBandMatrix(Matrix A, int kd) {
this(A, kd, true);
}
/**
* Constructor for UpperTriangBandMatrix
*
* @param A
* Matrix to copy contents from. Only the parts of A
* that lie within the allocated band are copied over, the rest
* is ignored
* @param kd
* Number of bands above the main diagonal (superdiagonals)
* @param deep
* True for a deep copy. For shallow copies, A must
* be a banded matrix
*/
public UpperTriangBandMatrix(Matrix A, int kd, boolean deep) {
super(A, 0, kd, deep, UpLo.Upper, Diag.NonUnit);
}
/**
* Constructor for UpperTriangBandMatrix
*
* @param n
* Size of the matrix. Since the matrix must be square, this
* equals both the number of rows and columns
* @param kd
* Number of bands above the main diagonal (superdiagonals)
*/
UpperTriangBandMatrix(int n, int kd, Diag diag) {
super(n, 0, kd, UpLo.Upper, diag);
}
/**
* Constructor for UpperTriangBandMatrix
*
* @param A
* Matrix to copy contents from. Only the parts of A
* that lie within the allocated band are copied over, the rest
* is ignored
* @param kd
* Number of bands above the main diagonal (superdiagonals)
* @param deep
* True for a deep copy. For shallow copies, A must
* be a banded matrix
*/
UpperTriangBandMatrix(Matrix A, int kd, boolean deep, Diag diag) {
super(A, 0, kd, deep, UpLo.Upper, diag);
}
@Override
public UpperTriangBandMatrix copy() {
return new UpperTriangBandMatrix(this, ku);
}
}
