Program Presentation
Usage
Presentation 'file' [-D]
file: bravais_TYP containing a finite matrix group G.
Description
Calculates a presentation of the finite group G.
Options
-D  : meant for debugging. Do not use.
Remarks
See also for Is_finite.
Examples
-  Do given matrices generate a space group? If so, find its name
and normal representation.
-  Find all Z-classes, affine classes and torsion free space
groups in a given Q-class.