Thursday, March 14, is National Pi Day, a time to celebrate the number that represents the ratio of a circle's circumference to its diameter. The number is known as π, the first letter of the Greek ...

March 14 is commonly referred to as Pi Day, a day that aims to celebrate the ratio of the circumference of a circle. The number is known as 3.14 or π and can actually go on forever. The most accurate ...

Thursday, March 14, is National Pi Day, a time to celebrate the number that represents the ratio of a circle's circumference to its diameter. The number is known as π, the first letter of the Greek ...

Happy 3.14159 and on and on! Pi Day (3/14) falls this year on Wednesday. But you don’t have to remember that pi represents the ratio of a circle’s circumference to its diameter (uh, yeah, we had to ...

National Pi Day is Thursday, March 14, this year, and you don't have to be a mathematical genius to enjoy the delicious discounts it offers. Here's where to find them. The origins of Pi Day can be ...