Turns out you can't have your "pi," and eat it too. In January 2014, a Brooklyn artist named Paul Ingrisano trademarked the 3,000-year old mathematical symbol "π" followed by a period, and is actively ...

Some people (hint: us) are celebrating Pi Day by eating many, many helpings of many, manydifferent types of pie. Others are corralling their livestock onto a field to form the pi symbol. Not ...

Add Yahoo as a preferred source to see more of our stories on Google. If those questions are running through your head, keep on reading! Ahead, you'll find everything you need to know about Pi Day.

Pi Day is a celebration of the endlessly fascinating number Pi (π), which starts as 3.14 and stretches on forever without repeating! It's a day dedicated to this mysterious mathematical constant that ...

A Brooklyn artist trademarks the 3,000-year-old mathematical symbol 'pi' and starts flooding math-clothing producers with cease and desist letters.Click here to watch the story from Jen Markham. A ...

One of the most important numbers in math might today be named after the Greek letter π or “pi”, but the convention of representing it this way actually doesn’t come from Greece at all. It comes from ...