Happy March 14—time to celebrate everyone’s favorite mathematical constant. Pi, or π, describes the ratio of a circle’s circumference to its diameter. Since it was first discovered more than 4,000 ...

Editor's Note: To honor math and all who use it, UDaily is re-posting a Pi Day story from 2018. March 14 is Pi Day. You’re welcome to eat pie, too, but the day is more of a celebration of math. A ...

If you like numbers, you will love March 14, 2015. When written as a numerical date, it's 3/14/15, corresponding to the first five digits of pi (3.1415) -- a once-in-a-century coincidence! Pi Day, ...

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 ...