circulating decimal

Read more in this article about some frequently asked questions and fun facts related to our definitions.

What is Pi Day? Pi Day is the March 14th holiday commemorating the mathematical constant π (pi), written numerically as 3.141592+, and pronounced “pie.” And yes: lots of people mark the occasion by eating pie because of course they do. Where is the word pi from? Pi is the Latin name of the sixteenth Greek letter, π. (Mathematic notation borrows from a multitude of alphabets and typefaces) The first recorded use …