21 ways to compute n!
Posted in Math is Everywhere, Mathematics on January 19th, 2006 1 Comment »
(Reminds be of the Paul Simon Song, 50 ways to leave your lover)
Anyways, that exclamation point in the title is not intended to convey excitement on this post, but the factorial of an integer . Recall that . I was surprised to learn there are so many ways to compute it: [...]