If you haven’t celebrated Pi Day yet, what are you waiting for? This unofficial holiday rolls around every March 14 — that’s 3/14, matching the rounded number of pi. In case you need a refresher, pi ...

Time is a flat circle, Matthew McConaughey tells us, neglecting to explain how then we could measure time's circumference to derive its diameter, using pi. (Maybe it's best not to take the sentiment ...

This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated. Math enthusiasts around the world, from ...

Math is all around us: the music you listen to, the vehicles you drive and even the food you bake can all be represented mathematically. But for most kids - and many adults - the word math evokes ...

The famous number has many practical uses, mathematicians say, but is it really worth the time and effort to work out its trillions of digits? Swiss researchers have spent 108 days calculating pi to a ...

U.S. President Barack Obama shareD his strawberry pie with a boy during a lunch stop at the Kozy Corners restaurant in Oak Harbor, Ohio. Here are some jokes for Pi Day. Reuters This story was updated ...

On March 14, math classes across the country will celebrate Pi Day—a national holiday in honor of the mathematical constant pi, which represents the ratio of a circle’s circumference to its diameter ...

Image made with elements from Canva. It’s March 14, or Pi Day, that day of the year where we celebrate the ratio that makes a circle a circle. The Greek letter that represents it is such a part of our ...

Mathematician Carlos Castillo-Chavez says that pi is so important to math that using its simple, geometric definition denies its greater powers. "[Pi] brings you into the world of mathematics, which ...

Pi Day — March 14 in the United States — was first celebrated in 1988 and falls during Women's History Month. When you purchase through links on our site, we may earn an affiliate commission. Here’s ...