Preferably something like:

(ln x)
(log [base] x) with base defaulting to 10

Also, trig functions would be good, although you can replicate them by (ab)using sysVector functions.

giantcabbage 4 Aug 2017:

Added in this pull request

I followed Common Lisp so you get: (log x [base]) with base defaulting to natural

george moromisato 31 Aug 2017:

Merged into 1.8 Alpha 3. Thank you!