New ask Hacker News story: What are some interesting areas of math to study beyond calculus?

What are some interesting areas of math to study beyond calculus?
2 by chillpenguin | 3 comments on Hacker News.
I am a typical computer science person, having studied the typical math topics an undergraduate would study. The topic area I spent the most time on (besides computer science) would be calculus. I have been out of college for a few years, but I find myself missing mathematics. What are some topics/areas of math that I didn't know I needed in my life? Doesn't have to be practical, could be purely for intellectual interest. But practical/useful topics would be welcome too of course. Here are some things I have already studied: - Calculus - Differential, Integral, Sequences and Series, Vector (partial differential equations, gradients, Lagrange multipliers) - Statistics and Probability basics - normal distributions, hypothesis testing ("rejecting null hypothesis"), combinations/permutations - Linear Algebra - matrices, vector spaces - Abstract algebra concepts from my studies in Functional Programming - monads, monoids, higher order functions - Discrete Structures and other CS stuff - proof theory, set theory basics, logic, boolean algebra, graph theory - Computer Science - Deterministic Finite Automata, Grammars, Turing Machines (and Chomsky hierarchy of languages) - Fractals, Cellular Automata - Algorithms and analysis of algorithms - alternative number system: base 2 number system (binary) Recommend me something new!

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