Add Yahoo as a preferred source to see more of our stories on Google. One of the most important numbers in math might today be named after the Greek letter π or “pi”, but the convention of ...

The Internet definitely does not <3 Paul Ingrisano right now. The Brooklyn street artist and craft entrepreneur has enraged aspiring designers and math nuts alike with a seemingly overbearing ...

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 ...

Wired reports that multiple sellers on online marketplace Zazzle were shocked to find last week that their designs had been taken down as a result of a cease and desist notice by one Paul Ingrisano, ...

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 ...

It isn't The Pioneer Woman without "pi!" In the baking sense, Ree Drummond is no stranger to the pastry, whether she's whipping up apple pie, pot pie, or Ladd's favorite chocolate pie. One of the best ...

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 ...