GAP 4.8.9 installation with standard packages -- copy to your CoCalc project to get it
The NumericalSgps package is Copyright Centro de Matemática da Universidade do Porto and Universidad de Granada, 2005--2011. NumericalSgps 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 2 of the License, or (at your option) any later version. For details, see http://www.gnu.org/licenses/gpl.html