<? xml version= "1.0" encoding= "UTF-8"?>
<! DOCTYPE Book SYSTEM "gapdoc.dtd"
[<! ENTITY SgpViz "<Alt Not='Text'><URL
Text= 'SgpViz'> https://gap-packages.github.io/sgpviz/</ URL></Alt><Alt Only= 'Text'><Package> SgpViz</Package></Alt>">]
>
<!-- Documentation to the SgpViz package. -->
<Book Name="SgpViz">
<TitlePage>
<Title>&SgpViz;</Title>
<Subtitle>A &GAP; package for semigroup visualisation</Subtitle>
<Version> Version <#Include SYSTEM "../version">
</Version>
<Author> Manuel Delgado
<Email>mdelgado@fc.up.pt</Email>
<Homepage>https://www.fc.up.pt/cmup/mdelgado</Homepage>
</Author>
<Author> José João Morais
</Author>
<Copyright>
<Index>License</Index>
©right; 2005 by Manuel Delgado and José João Morais <P/>
<Alt Only="LaTeX">\noindent</Alt> &SgpViz; package is free software;
you can redistribute it and/or modify it under the terms of the
<URL Text="GNU General Public License">https://www.fsf.org/licenses/gpl.html</URL>
as published by the Free Software Foundation; either version 2 of the
License, or (at your option) any later version. For details, see the file 'GPL' included in the package or see the FSF's own site.
</Copyright>
<Colophon>
This manual describes the &GAP; package &SgpViz;, Version <#Include SYSTEM "../version">, for visualising finite semigroups.<P/>
<P/>
Since Version 0.998 (released in 2008), the package is maintained by the first author.
<P/>
The present package is superseded by the &GAP; package <E>semigroups</E>, by James Mitchel, in what concerns some aspects of semigroup visualisation. We strongly recommend the usage of that package, unless you find useful specific tools available in &SgpViz; but not in <E>semigroups</E>.
<P/>
Bug reports, suggestions and comments are, of course, welcome. Please use the
email address <Email>mdelgado@fc.up.pt</Email> to this effect.
<P/>
If you have benefited from the use of the &SgpViz; &GAP; package in your research, please cite it in addition to &GAP; itself, following the scheme proposed in
<URL>https://www.gap-system.org/Contacts/cite.html</URL>.
</Colophon>
<Acknowledgements>
The first author acknowledges
financial support of FCT, through the <E>Centro
de Matemática da Universidade do Porto</E>.
<P/>
The second author acknowledges financial support of FCT and the POCTI program
through a scholarship given by <E>Centro de Matemática da Universidade do Porto</E>.
<P/>
Both authors acknowledge
Jorge Almeida, Vítor H. Fernandes and Pedro Silva
for many helpful discussions and comments.
<P/>
<P/>
<B>Concerning maintenance:</B>
<P/>
<P/> The maintainer wants to acknowledge partial support by:
<P/> FCT - Fundação para a Ciência e a Tecnologia under the project PTDC/MAT/65481/2006
<P/> <E>Centro de Matemática da Universidade do Porto</E> (CMUP), funded by the European Regional Development Fund through the programme COMPETE and by the Portuguese Government through the FCT project PEst-C/MAT/UI0144/2011.
<P/>
CMUP (UID/MAT/00144/2013 and UID/MAT/00144/2019), which is funded by FCT (Portugal) with national (MEC) and European structural funds through the programs FEDER, under the partnership agreement PT2020.
<P/>
Furthermore, the maintainer wants to thank the organisers of <C>GAPDays</C> in their several editions, as well as several people (for advises, giving feedback, etc). Among them I would like to refer: Max Horn, James Mitchel, Jan Philipp Wächter, João Araújo, Alfredo Costa and Teresa Melo.
</Acknowledgements>
</TitlePage>
<TableOfContents/>
<Body>
<#Include SYSTEM "introduction.xml">
<#Include SYSTEM "basics.xml">
<#Include SYSTEM "drawings.xml">
<#Include SYSTEM "xsemigroup.xml">
</Body>
<Bibliography Databases="SgpViz" />
<TheIndex/>
</Book>
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