π Day materials

I co-organized π Day 2015 at Illinois. Below are some of our materials for that event. The History posters were spearheaded by talented undergraduates, while the other materials here were mostly my doing. (We—including fellow grad students M.Tip Phaovibul and Melinda Lanius, Math Club president Amanda Belisle, and mathematician-at-large Natalya St. Clair—also organized a few talks, a few hands-on experiments, story time and a debate, a digit memorization contest, a baking competition, and handed out lots and lots of pie.) I'm not positive I have the final versions of these files. Please forgive any errors.

History of π posters

Ancient West
Ancient East
More East
Return to Europe
Pursuing Polygons
What's in a Name?
Tech Age
So Many Digits

Advanced π posters

π is constant
π in other bases
Rational, Algebraic, Normal
π in L^p space

Geogebra applets

Euclidean π - constructs and measures inscribed and circumscribed polygons
Hyperbolic π - does the same but in hyperbolic space
Galperin's billiards - sketches a proof that Galperin's experiment results in the digits of π

Last modified March 14, 2018.