Thursday, people across the world celebrated what some call a mathematical wonder.
Pi Day is celebrated on March 14th. In a nutshell, pi, a never-ending decimal that begins 3.14, is what's called a mathematical constant-- it's the ratio of the circumference of a circle to its diameter. Although it may be hard to understand, experts say it's an important part of everyone's lives.
Kids at the Mathnasium in West Knoxville marked the occasion with games and themed instruction.
"Pi is a very important number in mathematics, and so we're just taking this opportunity to have a very fun time with the kids and teach them some fun facts about pi," said Mike O'Hern, owner of the Mathnasium.
"Math is awesome! We couldn't do anything without math. We couldn't go to the grocery store or pay our bills or whatever; we can't do anything without math. Math is everything!" exclaimed Ava Mari.
Here are some fun facts about pi: It has been calculated to over one trillion digits beyond its decimal point, and as an irrational and transcendental number, it will continue infinitely without repetition or pattern.