Another option: take calc I, but differently. I finished calc II in high school, then for the first semester I took a class called “Honors Math I”, the first cl

Another option: take calc I, but differently. I finished calc II in high school, then for the first semester I took a class called “Honors Math I”, the first class in the math major track. I was a cs and physics major. The class was sort of a survey that started with propositional and predicate logic, set theory, and hit bits of number theory and group theory before going deeper into continuous functions, differentiation and integration. Proofs all the way. At one point the prof quipped, “If you’re using numbers bigger than about 8, you’re not doing real math.” The class did a great job reinforcing what I’d learned in high school, while setting me up for some of the beefier proof-based cs theory classes later on.