GAP 3 Share Package "xgap"

Share package since release 3.3, about October 1993.
Corresponding GAP 4 package: GAP 4 package "xgap". We strongly recommend to use the GAP 4 version since the GAP 3 version was only experimental.

Note that the package cannot be loaded from GAP 3 via the 'RequirePackage' command, but rather XGAP has to be called in the beginning instead of GAP 3.

Authors

Frank Celler and Susanne Keitemeier.

Implementation

Language: C
Operating system: Unix/X-Windows X11R5 or higher
Current version: 1.3 (in the 3.4.4 distribution)

Description

XGAP is a graphical user interface for GAP 3, it extends the GAP 3 library with functions dealing with graphic sheets and objects. Using these functions it also supplies a graphical interface for investigating the subgroup lattice of a group, giving you easy access to the low index subgroups, prime quotient and Reidemeister-Schreier algorithms and many other GAP 3 functions for groups and subgroups. At the moment the only supported window system is X-Windows X11R5, however, programs using the XGAP library functions will run on other platforms as soon as XGAP is available on these.

Contact address

Max Neunhöffer
School of Mathematics and Statistics
University of St. Andrews
The North Haugh
St. Andrews, Fife, KY16 9SS
UK
email: neunhoef@mcs.st-and.ac.uk