22 digits. The reason I remember this is because in 7th grade, my math teacher had a banner that circled the entire room with pi to a great many digits on it. Since I was bored a large portion of the ...

Math nerds and dessert enthusiasts unite to celebrate Pi Day every March 14, the date that represents the first three digits of the mathematical constant pi. Representing the ratio of a circle's ...

Most of us first hear about the irrational number π (pi)—rounded off as 3.14, with an infinite number of decimal digits—in school, where we learn about its use in the context of a circle. More ...

Pi, a mathematical constant denoted by the Greek letter π, is the ratio of a circle's circumference C to its diameter d: π = C/d. The circumference of a circle is, in turn, equal to 2πr, where r is ...

That became readily apparent on Saturday, when he recited 385 digits of pi from memory. It was part of a Pi Day celebration he organized in a Portland coffee shop, where all were encouraged to attempt ...