Happy Pi Day! For decades, math lovers have been honoring this crucial irrational constant on March 14 (or 3/14, the first three digits of the ratio of a circle's circumference to its diameter) every ...

Today, our Facebook feeds will be peppered with references to Pi Day, a day of celebration that has long been acknowledged by math fans and which Congress made an official holiday in 2009. Every ...

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More than just a famously never-ending number, pi has a knack for appearing in the mathematical formulas we use every day Ker Than March 14 is no regular Pi Day this year. Math enthusiasts everywhere ...