Column approximate minimum degree ordering algorithm. A translation of COLAMD into Java by Richard Lincoln.
Copyright (C) 1998-2011 Stefan I. Larimore and Timothy A. Davis.
Copyright (C) 2011-2012 Richard Lincoln.
COLAMDJ 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.