If you haven’t celebrated Pi Day yet, what are you waiting for? This unofficial holiday rolls around every March 14 — that’s 3/14, matching the rounded number of pi. In case you need a refresher, pi ...

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 ...

Did you know there are holidays for almost everything? While the U.S. may have 11 official federal holidays, there are actually thousands of quirky, themed days that make the calendar a whole lot more ...

On March 14, math classes across the country will celebrate Pi Day—a national holiday in honor of the mathematical constant pi, which represents the ratio of a circle’s circumference to its diameter ...