head to ulaff.net, they have textbooks, a set of computer exercises, a code repository, youtube lectures, the whole nine yards really starting with linear algeb

head to ulaff.net, they have textbooks, a set of computer exercises, a code repository, youtube lectures, the whole nine yards really starting with linear algebra 101 and culminating with numerical linear algebra their treatment of numerical linear algebra is not as comprehensive as say the one you'd find in Watkins' Fundamentals of Matrix Computations but it's free