Pi Day

It's Pi Day! We are celebrating the ratio 3.14 in mathematics that represents a constant.

Fun Fact: Pi is an irrational number. It can’t be expressed as a fraction. It doesn’t end with a repeating pattern (like the decimal expression of 1/3, 0.33333…, in which the threes repeat forever), or terminate after a certain number of decimal places (like 3/4, or .75). It just keeps going, going and going. So far, pi has been calculated to over 22 trillion digits. It took a computer with 24 hard drives, working nonstop for 105 days, to make that calculation.