![Pi gets all the fanfare, but other numbers also deserve their own math holidays](https://blogs.world.edu/wp-content/themes/homepage/includes/php/image-jit/?filter=list-thumbnail&file=https://world.edu/wp-content/uploads/2023/03/CompoundInterest.png)
Pi gets all the fanfare, but other numbers also deserve their own math holidays
March 14 is celebrated as Pi Day because the date, when written as 3/14, matches the start of the decimal expansion 3.14159… of the most famous mathematical constant. By itself, pi is simply a number, one among countless others between 3 and 4. What makes it famous is that it’s built into every circle you […]… Learn more.