# Celebrate Pi Day!

It's the only holiday to honor a number: Pi Day, on 3-14, the beginning digits of the infinite, nonrepeating decimal expansion of $\pi$ = 3.1415926... As the ratio of a circle's circumference to its diameter, $\pi$ is irrational and transcendental--qualities sure to bring a twinkle to any mathematician's eyes. How are people celebrating Pi Day?

## If your math department celebrates Pi Day let us know!

Email the AMS Public Awareness Office

From The Self-Referential Cookbook: the first 13 digits of Pi (last displayed digit rounded).