Pi is the mathematical constant of the ratio between the diameter and the circumference of a circle, approximately equal to 3.14159 though it is an irrational number with a non-repeating decimal which never ends.

But, more deliciously, pi day sometimes means there is pie, "a baked food, with a baked shell usually made of pastry dough that covers or completely contains a filling of fruit, meat, fish, vegetables, cheeses, creams, chocolate, custards, nuts, or other sweet or savoury ingredients."

In this thread we discuss either pi or pie, your choice.
(p.s. I could have posted this at 1:59:26 or pi second, but I decided to spare you all)














