Also, really important to refer to Boyd's prequel book, which is much simpler and can be read by anyone here without any prior background: https://web.stanford.edu/~boyd/vmls
It has tons of code and exercises in Julia and Python. Start here, excellent to get a taste of linear algebra and its applications.
It has tons of code and exercises in Julia and Python. Start here, excellent to get a taste of linear algebra and its applications.