PI

Pi, the mathematical constant that is so important to many mathematical concepts and mathletes, is namely irrational and goes on forever. Most people know that it starts with 3.14159 and goes on forever from that point, but how do we know that that this number is correct? There have been many mathematicians such as Niven and Cartwright who have written proofs for pi with many funky concepts and weird equations which you can see for yourself here: http://en.wikipedia.org/wiki/Proof_that_%CF%80_is_irrational. One can also learn about why pi is 3.1459 here where things are easier to understand: http://www.slideshare.net/yaherglanite/estimating-pi. Basically, all you need to know is that the contant is true and that it works though! Trust it