gap-cryst - 4.1.23-2 main

GAP is a system for computational discrete algebra, with particular emphasis
on Computational Group Theory. GAP provides a programming language, a library
of thousands of functions implementing algebraic algorithms written in the GAP
language as well as large data libraries of algebraic objects. GAP is used in
research and teaching for studying groups and their representations, rings,
vector spaces, algebras, combinatorial structures, and more.
.
This package, previously known as CrystGAP, provides a rich set of methods
for the computation with affine crystallographic groups, in particular space
groups. Affine crystallographic groups are fully supported both in
representations acting from the right or from the left, the latter one being
preferred by crystallographers. Functions to determine representatives of all
space group types of a given dimension are also provided. Where necessary,
Cryst can also make use of functionality provided by the package
CaratInterface.
It was written by Bettina Eick, Franz Gähler and Werner Nickel.