I'm in a similar situation, not getting much math in college while pursuing an unrelated degree and only teaching myself programming later. I've subsequently a

I'm in a similar situation, not getting much math in college while pursuing an unrelated degree and only teaching myself programming later. I've subsequently addressed my math deficit through extension courses at local universities, Coursera and Udacity MOOCs, Khan Academy, etc. There two areas where I've felt the need for advanced math most keenly during my software development career are: 1) Similarity scoring in information retrieval and recommendation engines. 2) DSP.