Pi Day

It’s almost Pi Day! Pi is an irrational number that represents the ratio of every circle’s circumference to its diameter. Although the digits of pi never repeat and never end, we often use 3.14 as the approximate value of pi. To honor this special constant, mathematicians and educators all around the world have set aside […]

Quick, what number gets its own special day and even has schools, families and websites devoted to its celebration? Why, it’s pi, of course, that versatile, constant number that refers to the ratio of the circumference to the diameter of a circle. It’s always 3.14 (or 3.14159 if you want to be especially precise about […]