Is there an easily available implementation of erf() for Python?

Question

I can implement the error function, erf, myself, but I\'d prefer not to. Is there a python package with no external dependencies that contains an implementation of this func

Answer 1

I have a function which does 10^5 erf calls. On my machine...

scipy.special.erf makes it time at 6.1s

erf Handbook of Mathematical Functions takes 8.3s

erf Numerical Recipes 6.2 takes 9.5s

(three-run averages, code taken from above posters).