Add Yahoo as a preferred source to see more of our stories on Google. 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 ...

SAN FRANCISCO -- Every March 14, mathematicians, scientists and math lovers around the world celebrate Pi Day, a commemoration of the mathematical sign Pi. That's because the date written numerically ...

CANYON — The Panhandle-Plains Historical Museum (PPHM) celebrated the mathematical marvel of Pi (π) on Saturday, March 14, on the East Lawn with some Pi-themed activities including — of course — a pie ...

WEST PALM BEACH, Fla. (AP) — Math enthusiasts around the world, from college students to rocket scientists, celebrate Pi Day, which is March 14 or 3/14 — the first three digits of an infinite number ...