Math lovers, teachers and families around the world are gearing up tocelebrate Pi Day on March 14, or more precisely to the pi second, 3/14 (the American date format) at 1:59:26 p.m.

Pi or π, approximately equal to 3.1415926, is one of the most important mathematical constants. "If there was just one day that screams math party, March 14 would have to be it," says Susan Jarema, founder of Googol.

So, what do you serve guests at a π party? Why, pi-neapple, pi-zza, and pi-e, of course!

Need music? How about downloading the Pi Rap mp3,

*Lose Yourself (in the Digits)*over at teachpi.org.With the use of computers, Pi has been calculated to over 1 trillion digits past the decimal. Pi is an irrational number meaning it will continue infinitely without repeating. The symbol for pi was first used in 1737 by William Jones, but was popular after it was adopted by the Swiss mathematician Leonhard Euler in 1737.

Hmmm....I wonder if Hallmark makes a Pi Day *

*greeting card*?

*

*Who needs Hallmark? You can send a*

**free eCard****here****.**
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