# Revision history [back]

If you give a name to your automorphism group:

sage: A = G.automorphism_group()


Then, you can see all methods that apply to it:

sage: A.<TAB>


where <TAB> stands for the tabulation key.

You can see that there is a cardinality method that answers your question:

sage: A.cardinality()


If you could not find such a method, you could always compute the length of the list you obtained:

sage: len(A.list())