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Stony Brook University

Piday: Home

Pi-Day Activities

  • FREE pie!!
  • Pi Crossword Puzzle (enter your completed puzzle in prize drawing!
  • FREE Pi-day circular buttons!
  • Haiku contest about Pi (or pie) – winner receives a $10 gift card for Barnes and Noble!
  • Did we mention FREE pie?  Maybe some cookies too – hey, Pi is irrational!

Why celebrate Pi?

Why not?! You don’t have to be a math enthusiast to find Pi fascinating. But should you happen to be a math enthusiast, or for those wishing to uncover their hidden mathlete, check out SBU’s Math Club!


When: Friday, March 11, from 11am-1pm

Where: Melville Library, Galleria Information Desk

Pi-Day is a holidayobserved on March 14 in honor of the irrational number known as π (Pi). Pi (the ratio of the circumference of a circle to its diameter — which is approximately 3.1415) is a transcendental number, which means it will continue forever without sequence or pattern. That’s pretty awesome.

Those who are not familiar with Pi and do not normally celebrate it as an amazing number might associate the symbol with pie, as in the delicious fruit-filled pastry. That’s fine too.  We love pi(e) of all kinds and do not discriminate.

Join the Library as we celebrate both forms of pi(e) with equal fervor at the Information Desk in the Galleria. Pie will be eaten, games will be played, contests will be won, and prizes will be awarded. But most importantly, Pi will be honored!

SBU Libraries will celebrate Pi-Day on Friday, March 11, from 11am-1pm.  We hope this inconsistency will not infuriate any devout fans of this constant number. 

Guide Creator

Kristen Cinar