Last week's xkcd #1047 featured a bunch of "slightly wrong equations." Many of them came from +Robert Munafo's delightful approximation-finder REIS, and since then he's made it available on the web.

Check out http://www.mrob.com/pub/ries/index.html to find what your favorite number is almost, but not quite, equal to.

Check out http://www.mrob.com/pub/ries/index.html to find what your favorite number is almost, but not quite, equal to.

RIES - Find Algebraic Equations, Given Their Solution -- Explore a wide variety of topics from large numbers to sociology at mrob.com