Book or hands on course showing math behing ML

Hi, so the thing is, I’m already reading the Mathematics for Machine Learning book by (among others) Marc Peter Deisenroth. It’s really heavy for me. I’m not a math beginner, though this book - its first part especially - is a bit too intimidating, offers very little non-formal explanation and in general I’m having problems understanding it. To me, it looks like it’s a book with condensed knowledge aimed more at academics that are more math-fluent than I am. But …

book course datascience math