[GAP Forum] Resolution of Bieberbach Group

[Ho Yiu CHUNG]

Dear Forum,
I am trying to find a resolution of a Bieberbach Group by using the package "HAPcryst". The following is the code that I entered.
>LoadPackage("HAPcryst");>R:=ResolutionBieberbachGroup(SpaceGroup(3,9));
But a error message is shown. I would like to know how to use the command "ResolutionBieberbachGroup" correctly. Whether I need to load another package in order for me to use that command?
Thank you very much,
Hollis