I did study applied math and dealed almost exclusively with the creation of ode/pde solver code. Now, I want to increase my knowledge in some aspects and I want to learn some basic algorithms like A*, MinMax, ... (not limited to searching; I am also interested in the basics of optimization and machine learning) and their implementation.
Is there a good resource (book, online course) available for me to learn this from? Any help is appreciated. I have no other CS-related background except my math degree.