| It depends on how deep you want to go and what your goals are, but I'd say that CuriouslyC pretty much nailed it. Multi-variable calculus, linear algebra, and probability / stats are definitely the core. If you're interested in finding more "freely available online" maths references, check out: http://people.math.gatech.edu/~cain/textbooks/onlinebooks.ht... http://www.openculture.com/free-math-textbooks https://open.umn.edu/opentextbooks/SearchResults.aspx?subjec... https://ocw.mit.edu/courses/online-textbooks/#mathematics https://aimath.org/textbooks/approved-textbooks/ There's also a TON of high-quality maths instructional content on Youtube, Videolectures.net, etc. For example, there's some really good stuff by David McKay (also mentioned in CuriouslyC's post) here: http://videolectures.net/david_mackay/ Be sure to check out Professor Leonard: https://www.youtube.com/user/professorleonard57 Gilbert Strang: https://www.youtube.com/results?search_query=gilbert+strang and 3blue1brown: https://www.youtube.com/channel/UCYO_jab_esuFRV4b17AJtAw as well. |