Add Yahoo as a preferred source to see more of our stories on Google. As if math wasn't confusing enough, we have Pi to contend with. An irrational number that has no end. It sounds like an easy ...

Come spring, everyone's a joker about math. That's because every March 14 — 3.14, that is — is Pi Day, so named for the set of numerals that make up its date. Sure, pi is technically the ratio of the ...

Math enthusiasts celebrate March 14 as Pi Day. The observance originated in the late 1980s in California, where physicists first served circular fruit pies to the public on the 14th day of the third ...

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 ...

As if math wasn't confusing enough, we have Pi to contend with. An irrational number that has no end. It sounds like an easy enough calculation in that it's the ratio of a circle's circumference to ...