Hi. This is a bit of a follow up to this topic: https://www.physicsforums.com/showthread.php?t=544643" which describes my struggle to pass a tough graduate Analysis class while dealing with the cognitive side-effects of medications I take for treatment-resistant Bipolar Disorder. So I am trying to pick classes to take next semester (should they not kick me out). Here are some of my options: 1. Algebra I (Abstract/ Modern Algebra)- theory of groups and rings. I am taking this one for sure. I love Abstract Algebra and did really well in it as an undergraduate even while taking the same medications I take now. So I am confident I can do well. 2. Analysis II- measure theory and analytic function theory...also complex variables. I want to take this class, but it is with the professor I have for Analysis I this semester in which I have a 20% in. I don't know if it is a bad idea to tackle this class next semester or to wait until Spring 2013 when another person is teaching it. Let me know. 3. Extremal Combinatorics: This is an advanced class and suggests prerequisites of courses I never took. So I don't think it is a good idea. But feel free to tell me what topics are in Extremal Combinatorics. 4. Finite Element Exterior Calculus:This class is lower-level (600 level) and says that no prerequisites are needed other than mathematical maturity. Tell me about this course.