KASH3 Ref - UnitGroup

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| ### Function UnitGroup ( res^num R ) -> grp^abl, map() ### Optional Arguments
Results | elt-ord^rat |  | 1 <= Results <= 2
### Description The unit group of the residue ring R. ### Examples x_O := MaximalOrder(X^3-11); x_q := Quotient(x_O,72*x_O);UnitGroup(x_q);
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