>>14387256learn GLSL and writing shaders, because that will force you to pick up a lot of useful math. If you're new to programming it can be difficult to get your head around but WELL worth it. Otherwise it really depends on the kind of math you're looking to learn, but python is succinct and straightforward, and has some nice libraries for dealing with vectors, graphing functions, statistics, discrete math and much more. If you want to learn data 'science' and/or machine learning, python is the industry standard and of course you will pick up a lot of useful math going that route as well.