GAP package Cryst

Computing with crystallographic groups

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.

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Authors

Bettina Eick, Franz Gähler, Werner Nickel

Maintainers

Bettina Eick, Franz Gähler, Werner Nickel

Version with GAP 4.12.2

4.1.25    (Released 29/07/2022)

License

GPL-2.0-or-later

Status

accepted    (communicated by Herbert Pahlings (Aachen), accepted 01/02/2000)

Dependencies

GAP version: >=4.11
Needed other packages: polycyclic (>=2.16)
Suggested other packages: CrystCat (>=1.1.9), CaratInterface (>=2.3.3), XGAP (>=4.22)

Documentation

Cryst [HTML]     [PDF]

Support contact

gaehler@math.uni-bielefeld.de

Download

cryst-4.1.25   [.tar.gz]