Wednesday, March 14, 2007

Happy Pi Day

Via Wikipedia.

Pi Day and Pi Approximation Day are two unofficial holidays held to celebrate the mathematical constant π (Pi). Pi Day is observed on March 14 (3/14 in American date format), sometimes at 1:59pm; Pi Approximation Day may be observed on any of several dates, most often July 22 (22/7 - in European date format - is a popular approximation of π).

March 14 happens to be Albert Einstein's birthday, among others, and it is common to sing "Happy birthday Dear Albert". Massachusetts Institute of Technology often mails out its acceptance letters to be delivered to prospective students on Pi Day.

More here.


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