[pure-lang-users] math.pure

[Eddie R. <er...@bm...>]

Albert,
While testing, I looked over some of the logs and here are my
suggestions:

Add the rules
sqrt inf = inf;
sqrt nan = nan;
ln inf = inf;
ln nan = nan;

Both of these rules also fix
acosh and atanh of nan and inf

I think cis is broken for complex numbers. I've got to run give another
test.

e.r.