Resources
If you love mathematics and want to challenge yourself further or just reviewing for an exam, these resources are for you. I find some textbooks are quite difficult to read, so these resources are more interactive and accessible.
1) LohQuality Mathematics: This is the youtube channel I created and is built around the premise of making math intuitive and engaging. Would recommend to complement other resources.
2) Khan Academy: One of the most interactive ways to learn math and the resource I personally used the most when building up my foundations; A fantastic resource from pre-algebra all to way to multivariable calculus.
3) Helping Kids Win in Math: This is the book that I made with the goal of teaching others how to learn math in an efficient way and to tackle difficult problems.
4) Paul's Online Notes: A great resource for learning introductory undergraduate material (Algebra, Calculus 1, 2, 3 and Differential Equations).
5) Math Academy: Similar to Khan Academy but focuses exclusively on math. There is a drawback of having the pay, but is a great option for those who find textbooks difficult
6) Interactive Linear Algebra: For those looking to learn linear algebra (matrix theory) intuitively, interactive linear algebra is a great resource and is personally how I learned a lot of linear algebra.
7) AOPS (Art of Problem Solving): If you want to learn even more, check out the art of problem solving courses and problems. Note that their resources are more geared for math competitions, so the material will be especially difficult.
