I'm currently a software engineer with an electrical/computer engineer background. Had a few courses on signals and machine learning but they left a lot to be desired.
Currently I've started by going through the Fast.ai foundations course which seems like a good start.
I'd like some suggestions on the following: 1) Useful resources for the math background needed. I would prefer resources which actually go into the gritty details as I already have some math background, but also appreciate resources with good insight on how to learn about concepts eg. 3B1B.
2) What path would you suggest to get a decent overview and a solid foundation on the field? For example, suppose you were starting in the field with hindsight, what knowledge would you seek as a foundation and how would you get an overview of the field?
Thanks in advance