# Automorphism Group

## `AutomorphismGroup(C): CodeAdd -> GrpPerm`

The automorphism group of the additive code $C$. Currently, this function is only available for additive codes over $GF(4)$.

## `PermutationGroup(C): CodeAdd -> GrpPerm`

The subgroup of the automorphism group of the additive code $C$ consisting of permutations of the coordinates. Currently, this function is only available for additive codes over $GF(4)$.