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I'm 15 this year and have a passion in physics What kind of math do I need to tackle general relativity? Also what year in uni do we learn about general relativity?

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    $\begingroup$ Tensor analysis mainly. You can learn it by yourself since it gets easier after a while. Also proficiency in calculus since it is used extensively in general relativity. $\endgroup$ – Horus Sep 21 '15 at 9:53
  • $\begingroup$ You can learn about it now, if you wish. There are some pretty good lecture series on the internet. It's exactly the same material that you would be taking a couple years from now in university. If you have the stamina to watch them and to learn in parallel from the course materials and books, there is really nothing to stop you from understanding it within a year, or two. How much you can get out of it depends entirely on how good you are with math and physics concepts. Good luck! $\endgroup$ – CuriousOne Sep 21 '15 at 9:58
  • $\begingroup$ Try youtube.com/watch?v=JRZgW1YjCKk. That's Susskind in Stanford... a $250k education for free. :-) $\endgroup$ – CuriousOne Sep 21 '15 at 10:03
  • $\begingroup$ @CuriousOne I watched that one. It was great though sometimes the students wasted the time by asking silly questions. $\endgroup$ – Horus Sep 21 '15 at 10:07
  • $\begingroup$ The last question depends on the Uni, I never saw it in my 4 years, but I know some people who had it as seniors. $\endgroup$ – Kyle Kanos Sep 21 '15 at 10:08