[GAP Forum] Crystallographic groups

[Daniela Nikolova]

Hi everybody,
  I am Daniela - a returning user - formally from Bulgaria, now from Florida! 
  I was wondering if there is a software in GAP concerning crystallographic groups, more specifically - I am interested in classification algorithms for 2D, and perhaps 3D?
  Thanks

Ps: which of the two addresses above is the best address to send questions?

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