+1 for 18-06 and Axler. Another, more concrete, option (not sure how much it will help with quantum theory) is Stephen Boyd's "Introduction to Applied Linear Al

+1 for 18-06 and Axler. Another, more concrete, option (not sure how much it will help with quantum theory) is Stephen Boyd's "Introduction to Applied Linear Algebra" available online here: https://web.stanford.edu/~boyd/vmls/ https://web.stanford.edu/~boyd/vmls/