6. Can we convert the complex/quaternion algebras to avoid real-
(un)embeddings? Quaternions would need their own
QuaternionMatrixAlgebra, since Sage matrices have to have entries
- in a commutative ring. Those and the octonion stuff could be moved
- to hurwitz.py along with the HurwitzMatrixAlgebra.
+ in a commutative ring.
7. Every once in a long while, the test