License and Copyright ===================== |S4| is copyright (c) 2009-2014, Stanford University. |S4| 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. 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 library; if not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. You can also find it on the GNU web site: `http://www.gnu.org/copyleft/gpl.html `_ Specific components ------------------- The files ``cubature.c`` and ``cubature.h`` were taken from Stephen G. Johnson's `Cubature package `_. See the page for details. The files ``sort.c`` and ``sort.h`` were taken from Rusty Russell's modification of the original libc routines. See the `CCAN page `_ for details. The file ``predicates.c`` is public domain, written by Jonathan Richard Shewchuk. See the `Quake project page `_ for details. Distributed with |S4| is the `Kiss FFT library `_. It is copyright (c) 2003-2014 by Mark Borgerding. As a clarification, we should note that Lua script (.lua) files, written by the user (i.e. not containing code distributed with |S4|) and loaded at runtime by the |S4| software, are not considered derived works of |S4| and do not fall thereby under the restrictions of the GNU General Public License. In addition, all of the example Lua code in these pages, as well as the example Lua files in the ``examples/`` directory, may be freely used, modified, and redistributed, without any restrictions. (The warranty disclaimer still applies, of course.) .. |S4| replace:: S\ :sup:`4`