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happy pi day!

Today is March 14th, which is often written in the west as 3/14. Looking at it this way, the date bears a striking resemblance to a common approximation for pi, the mathematical constant which expresses the ratio of any Euclidean circle’s circumference to its diameter. For this reason, today is celebrated by math enthusiasts the world over as Pi Day, a day on which the wonders of pi (and usually also pie) can be shared by one and all. There is even a website dedicated to pi day (and of course associated merchandising: check out this awesome clock). On the occasion of this delightful holiday, I would like to remind the reader about several interesting things about pi.