
5 months ago
I've been programming for the past 10 years or so. A couple years ago I decided to learn Haskell, which is an amazing programming language that has moved me closer to mathematics. I've learned a few things about category theory here and there, but I think I'd like to take things from the beginning and start to really dig deep into math. I've been an engineer for too long, and I want to return to the theoretical side of my work (theoretical computer science, mathematics, etc.)
Unfortunately, I think it might be too late for me to go to college now. I'm in my 20s, and my high school grades, except CS, were really atrocious—including math. Typical teenager, failed everything, barely made it out with a diploma. I failed precalculus, so I don't know any calculus at all. Just a lot of computer science—data structures, algorithms, assembly, etc.
My question is, is it possible—well, feasible—for me to make it through calc 13 (or 4?), and move on to linear algebra, analysis, graph theory, real category theory, etc., without being at a university? I have access to tons of textbooks, but do I need more than this to get a solid grasp of these concepts?
What do you recommend? I have a lot of fuel to burn on learning math, but I want to manage it efficiently.

4 months ago
Hello, everyone, set your goals and plan of action. Think about exactly what you want to accomplish in your math studies. For example, you may want to master a specific topic, or you may want to acquire certain skills. Then develop an action plan to help you achieve your goals. Use online resources. There are many free resources for learning math online. You can use online courses, video lessons, apps, and more. One such resource is the Brighterly check over here. I am sure that this school will help you learn difficult math topics and also the teacher finds an individual approach to each student.