<p>It completely depends on your high school. Calculus BC was the hardest class at my high school (there were only 30 kids in it, and roughly 50% went to Ivies or Stanford, and the less successful 50% went to Berkeley), and we even covered most of multivariable calculus that year (except for the theorems of Green, Gauss, and Stokes). Kids that got a C in the class got an easy 5 on the AP test.</p>
<p>Anyways, I found college multivariable calculus, linear algebra, and differential equations to be a step DOWN in difficulty from my high school calc class (I know you can argue that multivar, linear alg., and diff eq. are easier than introductory calculus courses in college, but still).</p>