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Happy Pi Day of the century!

Every March 14, math enthusiasts around the world celebrate the mathematical constant known as pi, often written simply as 3.14.

Pi describes the ratio of a circle's circumference to its diameter, and it represents an infinite string of numbers. Computers have calculated pi out to 10 trillion digits, but the first 10 go like this: 3.141592653

What makes 3/14/15 so special for pi fans is that it is the only day this century that will have the first five digits of pi -- 3.1415. Since the next digits are 92653, most people have chosen 9:26 p.m. to mark the ultimate pi moment. (Sticklers can wait for the clock to read 53...

Happy Pi Day of the century!
Every March 14, math enthusiasts around the world celebrate the mathematical constant known as pi, often written simply as 3.14.
Pi describes the ratio of a circle's circumference to its diameter, and it represents an...

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