<p>CalTech’s single-variable calc course is said to be much harder than an AP Calc class. Is it equivalent to MIT’s Calculus with Theory(18.014) or is it harder still?</p>
<p>^^Well, they use the same Apostol book, and the only people which take MIT’s 18.014 class are theoretical math majors. I would guess they are comparable in rigor and difficulty.</p>