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).
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Version: V2.29 of Fri Nov 28 15:14:01 AEDT 2025