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?
- How about some music? Here's Noam Elkies' composition, Steganographic Étude #1, based on the first 244 digits of $\pi$, with an explanation.
- Who came up with Pi Day? Learn about the day's history.
- The Exploratorium in San Francisco hosts events every year
- National Council of Teachers of Math (NCTM) "Pi Day on Pinterest"
- Math Goodies offers lesson plans
- College and university math departments such as Princeton University, Missouri University of Science & Technology, Harvard University, University of Adelaide (Vine videos), and MIT have fun on Pi Day
- Uppsala University (Sweden) student memorizes and writes 3141 digits of $\pi$.
- Raytheon's Math Moves U celebrates Pi Day. Make a pie!
- See Happy Pi Day video on YouTube. Dr Eugenia Cheng, from the University of Sheffield, explains what Pi is, what it's useful for, and demonstrates a trick to remembering it.
- Read more about Pi Day on AMS Blogs: The Pi Day Link Roundup of the Century, by Evelyn Lamb, Pi Day and Other Math Holidays, by Maya Sharma, and The Ubiquity of Pi Day: It’s Not Just for Math Geeks, by Edray Goins.
- Search Twitter for hashtag #PiDay to see lots more Pi Day celebrations around the world
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).