don't need to go ahead and learn all of linear algebra but you can get a very quick crash course in the piece of the linear algebra that are the most useful for deep learning so even someone whose math you know is real shaky you've ever seen in math for a few years we're going to start from the beginning of your book and get that background and get into deep learning all of the facts that you would need to know are there it would definitely take some focused efforts and practice that making use of them great