Today is “Pi” day!

(Picture courtesy Wikimedia)

Today (2010-03-14) Pi Day. As ardent geeks, let us celebrate the enigmatic number representing the ratio of circumference to diameter of a circle = 22/7 or 3.1415926535897932384626433832795028841971693993751058209749445………………………….!

Today is also Albert Einstein’s birthday! What a great coincidence!

It is said that the true “randomness” of pi’s digits is yet to be proven.

Facts about PI (from Joy of Pi)

• Geometry: Half the circumference of a circle with a radius of 1 is exactly pi
• Record for calculation: 2.7 trillion digits (by Fabrice Bellard, December 2009)
• Record for memorization: 67,890 digits (by Chao Lu, 2005)
• How random? There are no occurences of the sequence 123456 in the first million digits of pi

Wikipedia page on Pi.

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