So, I go to a relatively small school and don't have all that many options, but I'd like to ask about the couple I do have. I am going into my forth year, but because of the rotational schedule of the math and physics departments I took all the available forth year courses in the previous year. I plan to go to grad school for medical physics after this coming year. I am for sure taking: Fall 2015 Analog Electronics Statistical Thermodynamics Differential Equations 2 Winter 2016 Digital Electronics Advanced Mechanics Euclidean Geometry Regression Analysis I am also planning a directed studies with a Prof which counts for 3 physics credits, but will probably take both semesters. I'll need three more physics credits and I only have two options Materials or Fluids, which of those two is a more useful course? I will also need one more math course to get a math minor, my only options that seem to fit the schedule are Problem Solving, Complex Variables and Linear Algebra 2, again, which of these three seem the most useful? Thank you all in advance!