LINEAR ALGEBRA AND OPTIMIZATIONS
Here’s the material I used for LAO: https://mega.nz/folder/odAhmLLK#m_quqX4HYq06hV_yV65C9g
Honorable mention to https://atozmath.com/ ‘s calculator (SAVED MY LIFE SO MANY TIMES)
- has every single type of problems’ step by step solution in LAO, great for understanding any method!