Hi all, I am finishing my last semester of undergrad as a geosciences major with a minor in mathematics. I have applied to graduate programs in Physical Oceanography. I have found (a bit too late) that I really enjoy mathematics and would like to make the most of my last semester in two (perhaps contradictory) ways: coming out with a well-rounded math background, but also having a useful arsenal of mathematics for graduate courses in geophysical fluid dynamics, modeling, etc. Obviously finishing this task up in one semester isn't really possible, but I was hoping some of you might have some insight into courses I might take. I have taken: Calculus sequence, vector calculus, linear algebra, ODE, PDE, real analysis I, fluid dynamics (taught through our applied math department). My options are: Numerical methods (I am quite certain I will take this one), real analysis II, abstract algebra I, complex variables, probability theory. While abstract algebra likely won't be particularly useful, I believe having a semester each of algebra + analysis would show me some of the highlights of mathematics. I have room for two, maybe three, classes total in the list above. Thank you for your time.