As I continue working with problems in the domains of optimization, modeling, and machine learning, I find myself spending a lot of time browsing the web for instructions about techniques and methods suiting my applications (e.g. how to build a deep learning ANN, how to solve a MDP, how dynamic programming works, etc.). I prefer to just have good physical references for the fields of "Operations Research" and "Machine Learning". Can you recommend me one really good sort of handbook/ textbook for each field? Although not necessary, but it would be great if the books utilize either Python, Matlab/Octave, or R