Also when do you think mankind will discover the answer to this most important question?
Name:
Boring person2006-05-01 2:42
Pi is irracional because it cannot be described as a divison of two integers (racional).
It has infinite digits as proved by the algorithms to calculate them.
It is described by a symbol.
It's value is the perimeter of a circumference of 1 unit in diameter.
With Pi and the other trigonometry you can relate the space of the Complex numbers and the Real numbers (not the only way).
Pi digits don't repeat themselves, it's common to find curious patterns in Pi, but they usually don't go very far.