Add Yahoo as a preferred source to see more of our stories on Google. Thursday, March 14, is National Pi Day, a time to celebrate the number that represents the ratio of a circle's circumference to ...

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 ...

What do mathematicians and pie fans have in common? A love for March 14. Monday marks Pi Day. For math lovers, it's a chance to celebrate Pi, one of the most important numbers ever, representing the ...

Pi Day is a favorite holiday for both food lovers and mathematicians. For the foodies, the reasoning is simple. Pi Day brings discounts and deals for people looking to grab a pizza to celebrate the ...

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 ...

To some people, Pi Day is about mathematics. To others, it’s an excuse to eat pizza. Either way, there will be celebrations on Friday, March 14. Pi is the ratio of a circle’s circumference to its ...