Reference manual


    This document is Copyright © 2010-2021 by its contributors as listed below. You may distribute it and/or modify it under the terms of either the GNU General Public License (, version 3 or later, or the Creative Commons Attribution License (, version 3.0 or later.

    All trademarks within this guide belong to their legitimate owners.


    Jean-Pierre Charras, Fabrizio Tappero, Wayne Stambaugh, Jon Evans


    Please direct any bug reports, suggestions or new versions to here: