Hello, I have now added your mpower() function to relax (see the lib/linear_algebra/matrix_power.py file or http://svn.gna.org/viewcvs/relax/branches/relax_disp/lib/linear_algebra/matrix_power.py?revision=20285&view=markup). However the copyright notice at the top is missing the original author names. Please advise as to who should be added and the date. Only those who wrote or modified the code are allowed to be included. Cheers, Edward P. S. Could you also quickly check the code and comments? And as a copyright example: ############################################################################### # # # Copyright (C) 2010 Paul Schanda # # Copyright (C) 2012-2013 Mathilde Lescanne # # Copyright (C) 2013 Edward d'Auvergne # # # # This file is part of the program relax (http://www.nmr-relax.com). # # # # This program is free software: you can redistribute it and/or modify # # it under the terms of the GNU General Public License as published by # # the Free Software Foundation, either version 3 of the License, or # # (at your option) any later version. # # # # This program 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 General Public License for more details. # # # # You should have received a copy of the GNU General Public License # # along with this program. If not, see <http://www.gnu.org/licenses/>. # # # ###############################################################################