I don’t know dude. I took multivariable calculus, ODEs, linear algebra, modern physics; and a numerical methods for engineers class— all in the same semester. I was a fucking mess and swimming in integrals and derivatives and matrices and systems of equations (both differential and ordinary algebraic) 177% of the time. I honestly don’t remember anything of that five months of my life. 11/10 would not recommend.

I don’t know that any one book was a savior. I was reading from like three books per topic all at once to try to make heads and tails of anything and spending every minute I could in my prof’s and TA’s office hours.

Those two books were some of the only ones I kept, and just donated everything else. Maybe it’s just nostalgia.

Normally, the second time you learn something you tend to learn it much better.