Email notifications are only sent once a day, and only if there are new matching items. Does an infinite string of numbers starting with 3.14 ring a bell? You may remember pi, defined in school as the ...

Monday is March 14 — aka 3/14 — a k a Pi Day, a day to celebrate math, often with a slice of yummy dessert. You likely remember pi from middle school or junior high. It's the ratio of a circle's ...

PITTSBURGH (KDKA) -- Pi Day is coming up to celebrate Pi. You know, that number from math class that is 3.1415926535 8 and so forth. I figured since March 14th, or Pi Day is coming up, we would use ...