Semigroup visualization

( Version <#Include SYSTEM "../version"> )
Manuel Delgado mdelgado@fc.up.pt http://www.fc.up.pt/cmup/mdelgado
José João Morais josejoao@fc.up.pt
©right; 2005 by Manuel Delgado and José João Morais

We adopt the copyright regulations of &GAP; as detailed in the copyright notice in the &GAP; manual.
Bug reports, suggestions and comments are, of course, welcome. Please use the email address mdelgado@fc.up.pt or josejoao@fc.up.pt to this effect.
The first author aknowledges financial support of FCT, through the Centro de Matemática da Universidade do Porto.

The second author acknowledges financial support of FCT and the POCTI program through a scholarship given by Centro de Matemática da Universidade do Porto.

Both authors acknowledge Jorge Almeida, Vítor H. Fernandes and Pedro Silva for many helpfull discussions and comments.
<#Include SYSTEM "introduction.xml"> <#Include SYSTEM "basics.xml"> <#Include SYSTEM "drawings.xml"> <#Include SYSTEM "xsemigroup.xml">