Pi is a mathematical constant that is equal to the ratio of a circle's circumference to its diameter. For those who are not math fans, the circumference of a circle is the distance around the outside.

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 ...

I contributed to Pi love fest, too, by creating a collection of Pi-based quilts and the Pi Day anthem, featuring internet sensation and math-musician, Vi Hart.

Math geeks are excited about 3-14-15, this year's Pi Day. The San Francisco Exploratorium will celebrate with a pizza-pi-dough-tossing contest, a pi parade and special pie. Mmmm, pie. Or is it pi?

March 14, 2018, is Pi Day — that’s pi, not pie — and on Wednesday, Google marks the 30th anniversary of the math-inspired holiday with a special Doodle. Pi, denoted by the Greek letter “π ...

A country apple pie is sliced at Michele's Pies, Wednesday, March 13, 2024, in Norwalk, Conn. Math enthusiasts and bakers celebrate Pi Day on March 14 or 3/14, the first three digits of a ...

News What’s Pi Day all about? Math, science, pies and more Here’s a little more about the holiday’s origin and how it’s celebrated today. By The Associated Press Wire Service Mar. 14, 2025 ...

Employees work a busy bakery kitchen at Michele's Pies, Wednesday, March 13, 2024, in Norwalk, Conn. Math enthusiasts and bakers celebrate Pi Day on March 14 or 3/14, the first three digits of a ...

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 ...

In a bit of math symmetry, famed physicist Stephen Hawking died on March 14, 2018, at age 76. Still, pi is not a perfect number. He once had this to say: ...