Special affine group:SA(2,3)

Definition
This group is defined as the special affine group of degree two over field:F3.

Other descriptions
Alternatively, the group can be defined by the following procedure, using the functions ElementaryAbelianGroup, SubgroupsOfIndexTwo, AutomorphismGroup, and SemidirectProduct:

gap> A := ElementaryAbelianGroup(9);; gap> B := SubgroupsOfIndexTwo(AutomorphismGroup(A))[1];; gap> G := SemidirectProduct(B,A); 