Results 2 issues of mirefek

To me, it would make sense if a range could be an argument to `primes` by `primes(r::UnitRange) = primes(r.start, r.stop)` to have things such as ``` > primes(1:10) 4-element Array{Int64,1}:...

This line https://github.com/google-deepmind/alphageometry/blob/1357929e91bd327a015b26a94664035dc40b76b7/numericals.py#L705 Should not contain the parentheses, like ``` a, b, c, *ps = points ``` Otherwise, it crashes on: > TypeError: cannot unpack non-iterable Point object