In the last two weeks I read a couple of books on mathematics and physics like ‘The Science of Interstellar’ by Kip Thorne, ‘The Hidden Reality’ by Brian Green, ‘The Elegant Universe’ by Brian Greene, ‘Undergraduate Topology’ by Robert H. Kasriel and ‘Game Theory’ by Morton D. Davis. In addition to this, I also tasted several university-level math and physics problems from the Schaums series on topology, quantum mechanics, multi-variable calculus, tensor calculus, etc. I have also been doing a couple of courses in astrophysics and quantum mechanics from edX and Coursera sites. While I enjoyed the books thoroughly, the problems and courses helped me get a clearer and deeper understanding of the mathematical concepts related to these subjects.

Dear Mr German,
Thank you! I shall be delighted to do face-to-face courses rather than online ones.
I shall get to interact with my professor and my peers, ask questions, answer questions, suggest new innovations, theories, concepts, get direct and immediate feedback…
I can just go on and on and on forever…there is really nothing as exciting as a face-to-face course! I really wish I could do one????
Regards
Pritvik

There is a math website I frequently use called brilliant.org. It has a lot of challenging, fun, and interesting math and science problems. I was able to explore a lot of interesting mathematical and scientific topics such as Euler’s formula, topology, and astronomy. I’m currently looking into differential equations and group theory on the site and I’m having a lot of fun with it.