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
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