- Interactive Linear Algebra
- Calculus Explained with GIFs and Pics
- Calculus for the Curious
- Mathigon – an interactive, personalized mathematics textbook
- Immersive Linear Algebra
- Linear Algebra by Jim Hefferon – free textbook
- Ask HN: How to self-study mathematics from the undergrad through graduate level?
- Calculus with Julia
- Overview of differential equations - video
- How category theory is applied
- Applied Category Theory
- Mathematics all-in-one cheat-sheet - 2013 - pdf
- Ask HN: Are there books for mathematics like Feynman's lectures on physics?
- Ask HN: Best way to relearn basic math?
- Calculus for Beginners and Artists
- Math Basics for Computer Science and Machine Learning from UPenn - pdf