License.txt

KLU, Copyright (c) 2004-2022, University of Florida.  All Rights Reserved.
Authors: Timothy A. Davis and Ekanathan Palamadai.
SPDX-License-Identifier: LGPL-2.1+

KLU is also available under other licenses; contact authors for details.
http://www.suitesparse.com

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KLU 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.

KLU 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 Module; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA