For many students, math carries a reputation that makes palms sweat before a single number appears on the board. Pi Day flips that script on March 14, inviting learners to grab rulers, measure real ...

Add Yahoo as a preferred source to see more of our stories on Google. One mathematical constant describes the population growth rate of a bunch of rabbits. Supalerk Laipawat/EyeEm via Getty Images ...

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, ...

Unlike pi, these Pi Day jokes won't go on forever—but the LOLs will keep going for a while! Punny Pi Day jokes everyone will ...