A poster advertising an event for Brigham Young University’s Women in Math club has sparked mocking irritation online for its seemingly inconsistent visual featuring four men. As of Thursday ...

The post went onto say that the poster was not intended to be satire, but the math department itself enjoyed "a good laugh." "The posters have been replaced with a more appropriate message.

Whether or not the poster realized it, they had just opened the portal to a math conundrum that had been around for years. Enter permutations. In math, a permutation is the number of ways a set ...