Happy Pi Day! One of the readers of the blog, Lauren Jackson, discovered my post from 2008 on Pi Day and sent in an interesting info-graphic on Pi: check out Visualizing Pi .
In the tradition of silly holidays , today's the 22nd of July (7) which makes it 22/7 (for most non-Americans) or π Approximation Day . To get you into the spirit, here's some fun π stuff: π approximations including this one: π Day history π limericks like this one: Now there is an ancient Greek letter, And I think no other is better. It isn't too tall, It might look very small, But its digits, they go on forever. π to a million digits
In the American system of writing dates, today is 3/14 (March 14th) which is the approximation of π to two digits 3.14. It's therefore celebrated as π Day . Happy π Day! The media is buzzing with the annual outpouring of π math and trivia and here's some good stuff: BBC has a good introduction to π in history and culture. Watch an applet compute the value of π using Buffon's Needle Problem . For those interested in numerical computation, here are some ways to compute the value of π . One of the ways is using the series expansion for arctan(x): If you're mesmerized by continued fractions, here are some continued fractions that represent π . One that particularly looks "nice" is this one: Technorati Tags: math , π