1 1. Add references and start citing them.
3 2. Profile (and fix?) any remaining slow operations.
5 3. Every once in a long while, the test
7 sage: set_random_seed()
8 sage: x = random_eja().random_element()
9 sage: x.is_invertible() == (x.det() != 0)
11 in eja_element.py returns False.