What does AP Calculus AB mean?

AP Calculus AB meaning in Urban Dictionary

An advanced positioning (AP) Calculus training course taken in twelfth grade. This program features one semester of university level Calculus, while the after that amount obtainable in highschool (Calculus BC) features 2 semesters of Calculus 1. Calculus AB is considered a less complicated, less detailed version of Calculus BC.