<human>:  What are the differences between an AP Calculus AB and BC exam?
<bot>: The main difference between an AP Calculus AB and BC exam is the level of material covered. The AP Calculus AB exam covers more basic material and focuses on introductory topics, such as limits, derivatives, and integrals. On the other hand, the AP Calculus BC exam is more rigorous and goes much more in depth, covering topics such as vector analysis, parametric equations, series, and differential equations. Additionally, the AP Calculus BC exam includes the material from the AP Calculus AB exam, so it is important to make sure you are familiar with all of the basic topics before taking the BC exam.