Yesterday marked the confluence of round baked goods (sweet and savory), iconic slapstick, the Greek alphabet and the best known and most widely mystifying mathematical constant: “Pi Day.” ...

Add Yahoo as a preferred source to see more of our stories on Google. To refresh your memory, pi is the mathematical constant representing the ratio of a circle's circumference to its diameter. Like ...

If the students of Hanover High School are rocking out to songs they wrote themselves and wearing T-shirts decorated with a mathematical symbol, it must be Pi Day, an annual celebration of the ...

PITTSBURGH (KDKA) -- Remember that one time in math class when you said, "I am never going to use this in real life"? Since tomorrow is officially Pi Day, you Know 3-14, or March 14th, we are going to ...

Today you can eat a slice of pizza, raise a toast with a piña colada, or just reflect for a moment on 3/14 at 1:59 p.m. to celebrate the most irrational holiday of the year: Pi Day. The observance ...