Today is National Pi Day. Celebrated on 14th day of the third month (recognizing the numbers of pi: 3:14), the first National Pi Day (or at least the largest event held on the day up to that point) was celebrated on this day in 1988. The event was held at the San Francisco Exploratorium and was organized by Larry Shaw. Today the event is celebrated by math enthusiasts and pie lovers and oftentimes, both. Years later in 2009, the U.S. House of Representatives passed a non-binding resolution recognizing March 14, 2009 as National Pi Day.
Succinctly, pi——is the ratio of the circumference of any circle to the diameter of that circle. Regardless of the circle’s size, this ratio will always equal pi. In decimal form, the value of pi is approximately 3.14.
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