Definitely a tough course that requires a lot of attention. I fell behind at one point and catching up on the lectures was a lot...Demas is not great, I found her really distracted most of the time and so I stopped going to class and just watched Huang's lectures and Manly's youtube videos from when he taught the course in Spring 2021. Lots of extra credit though which is always nice. Just grind practice exams, do all the extra credit, and stay on top of lectures if you want a fighting chance.

Partial derivatives and gradients are super helpful with a lot of upper math courses and engineering, so it is a very useful class.