How to observe Pi Day 2015

Join Wolfram celebrating Pi Day at SXSW, find your birthdate in pi to put on a T-shirt or poster, and think big about the science and philosophy of pi. Own Piece of Pi). March 12, 2015 — Stephen Wolfram. Pictures from Pi Day now added ».

March 14 – (3/14) – has become an unofficial holiday dedicated to the rather unique irrational number that can be calculated to over a trillion digits beyond its decimal point. A lot can be said about Pi Day, but did you know this 

You made it through Friday the 13th with Horror movies galore, now it's time to get down on Pi Day 2015. Whether it's the perfect math (that won't happen again for another 100 years), the idea of tasty pies or even pizza that has you jazzed, we decided

Tomorrow is 3/14/15, which is a super-special Pi Day that comes around only once a century. (That is, if you ignore that 3/14/15 is only special using standard American date-writing conventions. But why not?) While traditionally, Pi Day is celebrated

Math enthusiasts celebrate Pi Day every year on March 14, to honor the mathematical constant that represents the ratio of a circle's circumference to its diameter. This year's event, however, happens just once in a century. Today, March 14, 2015, at 9