Add Yahoo as a preferred source to see more of our stories on Google. An illustration of the mathematical symbol pi etched into a piece of pi on a green background. Math nerds everywhere are digging ...

Friday is Pi Day, a national celebration of the mathematical concept, which is the ratio of a circle's circumference to its diameter and equals 3.14... Schools and museums often plan events to ...

March 14—aka Pi Day—isn’t just for math nerds. It’s the one day a year where we celebrate the magic of the number π (pi), which starts at 3.14 and goes on forever. But Pi Day isn’t just about ...

Did you know that Pi is arguably the only mathematical constant whose digits go on forever without repeating? Yes, it's true. The value of π begins with 3.14159 but its digits go on forever without ...