<p>Vinyl - I only have experience with my friend’s 130’s calc class. She struggled a lot, but according to her, the entire class had a trouble learning the material. I’d say 130’s calc is slightly more difficult than AB Calculus (maybe not, I took neither 130’s calc nor AB Calculus). Also, I have friend who wanted to take 130’s calc but did not place into it. He simply spoke with Diane Hermann, and she let him into 130’s calc.</p>