I am a mathematician doing research in stochastic differential equations, mixing in biomedical applications and some machine learning. Undergrad course to get

I am a mathematician doing research in stochastic differential equations, mixing in biomedical applications and some machine learning. Undergrad course to get me started: Java Web dev day job: Javascript, PHP, Perl (Bonus: MYSQL) HPC REU and subsequent undergrad thesis projects: R, Mathematica, MATLAB, Python, C (with lots of MPI and parallelism in each) (the REU is great! http://hpcreu.umbc.edu/ http://hpcreu.umbc.edu/) Grad school: Started out with lots of R, Mathematica, MATLAB, Maple, Python, C (venturing into C++ and CUDA), Fortran. Switched depending on what the project needed. I probably have a project in each of those. But soon after I learned Julia. Now? Only Julia. I find I don't need anything else anymore.