Math lovers celebrate March 14 as Pi Day, in honor of the irrational number pi. Pi, or π, is defined as the ratio of the circumference of a circle to its diameter. Pi is an irrational number, meaning ...

Math enthusiasts know all about it, and the rest of the population is probably hoping for cherry pie. But March 14 is Pi Day. While last year stretched the symbolic celebration out a little longer -- ...

Today marks National Pi Day in the United States and around the world. The holiday commemorates a timeless symbol beloved by many in mathematical and scientific communities, while making the most of ...

We bring you this story in case you want to get baking. That's because Saturday is Pi Day — but it's not just any pi day. It's March 14* of the year '15, or 3-14-15 — the first five digits of the ...

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 ...

This Pi Day, as you’re enjoying your slice of pie, explore a bigger slice of mathematics. Most March 14 celebrations are obsessed with the number pi. If you think “obsessed” is too strong, take a look ...

(AP) - Math enthusiasts around the world, from college kids to rocket scientists, celebrate Pi Day on Thursday, which is March 14 or 3/14 — the first three digits of an infinite number with many ...