Hacker News new | ask | show | jobs
by pjscott 1428 days ago
The inverse Ackermann function is one of the slowest-growing functions that you’re ever likely to encounter in the wild. To say that it’s “constant for all practical purposes” is 100% true but doesn’t do justice to how amazingly slow this function is to grow.

https://en.m.wikipedia.org/wiki/Ackermann_function