Automorphism Group

HadamardAutomorphismGroup(H : parameters): AlgMatElt -> AlgMatElt

Al: MonStgElt                    Default: "Traces"

Given a Hadamard matrix \(H\) of degree \(n\), returns the automorphism group of \(H\) as a permutation group of degree \(4n\). The parameter Al may be set to one of "Leon", "nauty", or "Traces" (the default).