I'm 16 years old. I'm interested in physics, especially astrophysics. I've learned this much so far: Derivatives Integration Up to Taylor Series Question is..now what? What should I learn now? I understand there is an infinite amount of calculus knowledge out there (Excuse my slack on the word 'infinite' :) ) But I don't know what would be good to learn next. I've heard Fourier Series is a great place to start to learn about Astrophysics, but to understand stuff like Einsteins theroums, etc, (the really high stuff, such as Heisenburgs equations, etc) What should I have to know? Should I learn alot about vectors? I'm also interested in computer graphics, and I know that deals with vectors, but mainly astrophysics :( Any suggestions?