Skip to content

Latest commit

 

History

History
57 lines (33 loc) · 3.22 KB

README.md

File metadata and controls

57 lines (33 loc) · 3.22 KB

README - Semigroups package for GAP

Copyright (C) 2011-17 James D. Mitchell et al.
Licensing information is available in the LICENSE file.

DOIBuild Status

Getting Semigroups

To get the latest version of the package download the archive file semigroups-x.x.x.tar.gz from the Semigroups webpage, and inside the pkg subdirectory of your GAP installation unpack semigroups-x.x.x.tar.gz, by, for example, doing:

gunzip semigroups-x.x.x.tar.gz; tar xvf semigroups-x.x.x.tar

This will create a subdirectory semigroups-x.x.x.

Issues

For questions, remarks, suggestions, and issues please use the issue tracker.

Installation

It is assumed that you have a working copy of GAP with version number 4.9.0 or higher. The most up-to-date version of GAP and instructions on how to install it can be obtained from the main GAP page.

The following is a summary of the steps that should lead to a successful installation of Semigroups:

  • get the IO package version 4.5.0 or higher

  • get the Orb package version 4.8.0 or higher. Both Orb and Semigroups perform better if Orb is compiled, so compile Orb!

  • ensure that the Digraphs package version 0.11.0 or higher is available. Digraphs must be compiled before Semigroups can be loaded.

  • get the genss package version 1.5 or higher

  • download the package archive semigroups-x.x.x.tar.gz from the Semigroups webpage.

  • unzip and untar the file semigroups-x.x.x.tar.gz, for example, using

    gunzip semigroups-x.x.x.tar.gz; tar xvf semigroups-x.x.x.tar

    this should create a directory called semigroups-x.x.x.

  • locate the pkg directory of your GAP directory, which contains the directories lib, doc and so on. Move the directory semigroups-x.x.x into the pkg directory.

  • from version 3.0.0, it is necessary to compile the Semigroups package. Semigroups uses the libsemigroups C++ library, which requires a compiler implementing the C++11 standard. To compile, inside the pkg/semigroups-x.x.x directory, type

    • ./configure
    • make

    Further information about this step can be found in manual section entitled "Compiling the kernel module"

  • start GAP in the usual way.

  • type LoadPackage("semigroups");

Enjoy!