A package for drawing integers

Version 0.2.4
Released 2019-08-23

This project is maintained by Manuel Delgado

Build Status Code Coverage


IntPic is a GAP package that provides a simple way of getting a pictorial view of sets of integers.


The aim of the package is to help visualising sets of integers and to create publication quality pictures of these sets.

There is a manual in the sub-directory doc written using the GAP package gapdoc which contains several examples illustrating its usage. In particular, it is illustrated how the pictures produced (either the tizk code or the pictures in pdf) can b eeasily included in a LaTeX document.

If you have used this package, please let me know by sending me an email. If you have any suggestion on how to improve it, I would very much appreciate if you send me an email.

Manuel Delgado


With this version you should have obtained the following files and directories:

 File/directory  Description this file
EXAMPLES some examples
CHANGELOG changelog
LICENSE Licensing information
doc the manual
gap the GAP code
tst a test file
images images produced using the package and used in the manual
init.g the file that initializes this package
read.g the file that reads in the package
PackageInfo.g information file for automatic processing
version the version number


The package shall be distributed with the main GAP archive. In this case, in order to use it you just have to start GAP and type

  LoadPackage( "intpic" );

For updates between releases of GAP itself or in case it is not distributed with the main GAP archive, check the package Web page

For the development version, please visit the repository in GitHub (

You may get IntPic as a compressed tar archive (file name ends with .tar.gz). Use the appropriate command on your system to unpack the archive.

On UNIX systems the compressed tar archive may be unpacked by

tar xzf intpic-<version>.tar.gz

or, if tar on your system does not understand the option z, by

gunzip intpic-<version>.tar.gz
tar xf intpic-<version>.tar

which will in each case unpack the code into a directory intpic in the current directory. We assume that the current directory is the directory /usr/local/lib/gap4r8/pkg/.


You may have to start GAP with the -l option, for instance,

gap -l "/usr/local/lib/gap4r8"

Then try the following

LoadPackage( "intpic" );

Good luck! If the load has been successful the package banner will be shown.

If you use a LINUX system, you may want to, in order to save typing, write aliases:

in the file .bash_aliases (or something equivalent, maybe with another syntax):

alias gap='gap -l "/usr/local/lib/gap4r8;"'

and in the file .gap/gaprc

LoadPackage( "intpic" );

In other systems, there are equivalent ways to do the same.

IntPic 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. For details, see the file GPL distributed as part of this package or see the FSF’s own site.