Hey guys, I have recently decided that i wanna try to self-learn some more math along with what im doing in high school. I am really interested in math and want to do it sort of as a hobby. Obviously, I know i can't learn calculus 2 because i finish calc 1, but what other maths could i try to pick up before finishing calc? or does alot of it rely ona foundation of calculus.... One i was looking into would be linear algebra. I got a book recommended to me from someone on PF, but alot of college sites claim that a prereq. of calc one is required for linear algebra. Is this because you need to know all of the basics of calc to take it, or just because calc is sort of more needed for math, well not more needed, just more widely used i guess, so they want you to take a more 'relevant math' before taking linear.