This is my college's description for it: Differential Geometry (3) Properties and fundamental geometric invariants of curves and surfaces in space; applications to the physical sciences. Pre: Calculus IV, and Introduction to Linear Algebra; or consent. I was doing pretty well in all my Calculus classes, but I'm very certain that I would need to review a bit, since it's been over a year since I took Calculus IV. It's also implied that I need to know my Linear Algebra. I'm pretty good at solving systems of linear equations, but kind of had trouble with the orthonormalization and orthogonalization portion of the Linear Algebra class I took last summer. So what kind of concepts would I need to review before going into this course? It talks about spaces and curves, so I assume I would need to review some Calculus III, as well? I'm a bit skeptical about taking this course over Intermediate Microeconomics, which I need for my VEE credit. On one hand, I might face a shortage of math classes that I can take within the constraints of my work schedule in the next year and a half. On the other, I kind of want to get Microeconomics out of the way so I don't have to worry about getting validation from that actuarial society anymore. It's a weak excuse, I know. I'm also taking these two courses: Introduction to Real Analysis (3) A rigorous axiomatic development of one variable calculus. Completeness, topology of the plane, limits, continuity, differentiation, integration. Pre: Calculus II, and Proof-writing. Mathematical Modeling: Probabilistic Models (3) Probabilistic mathematical modeling emphasizing models and tools used in the biological sciences. Topics include stochastic and Poisson processes, Markov models, estimation, Monte Carlo simulation and Ising models and Ising models. A computer lab may be taken concurrently. Pre: Calculus II. Anyway, I'm kind of rambling; what kind of course is Differential Geometry?