2012-05-29T13:03:33Z Photos, electronics, cnc, and more Jeff Eplerjepler@unpythonic.net 2012-05-29T13:03:33Z 2012-05-29T13:03:33Z https://gamma.unpythonic.net/01338296613 The ANSI C math library includes a few curious functions such as log1p, which is duly copied (or wrapped) in other languages like Python. The programmer without a background in numerics may wonder why such a function is necessary or useful. Here is a real world example in calculating the likelihood of a random collision in a <a href="http://en.wikipedia.org/wiki/Birthday_attack">Birthday Attack</a>.