Quantum Chemistry. What the heck was that about?
However, there are two classes that I will forever remember as those that nearly crushed me: Organic Chemistry and Philosophy. Oddly enough, my thought process during both was nearly identical: why? who cares? what's the point of this? will I *ever* use this in real life? gods I'm tired, I need a nap. getting sleepy... zzzzzzzz.
20300-20400-20500. Analysis in Rn I, II, III.PQ: MATH 13300 or 15300 or 16300. This three-course sequence is for students who intend to concentrate in mathematics or who require a rigorous treatment of analysis in several dimensions. Here, both the theoretical and problem-solving aspects of multivariable calculus are treated carefully. Topics covered in MATH 20300 include the topology of Rn, compact sets, the geometry of Euclidean space, limits and continuous mappings, and partial differentiation. MATH 20400 deals with vector-valued functions, extrema, the inverse and implicit function theorems, and multiple integrals. MATH 20500 is concerned with line and surface integrals, and the theorems of Green, Gauss, and Stokes. One section of this course is intended for students who have taken MATH 13300 or who had a substandard performance in MATH 15300. This sequence is the basis for all advanced courses in analysis and topology.
I don't recall one class being the "hardest", but architecture school is notorious for eating students and spitting them out... Long hours, lots of work, and not enough pay after college. I read somewhere that becoming an architect is probably the least bang for your buck. 5 years of school, 3 years min. of internship, and a median pay of $60,000 US (after several years of experience...)
Background Building Studio was probably the hardest. I had to design 3 different buildings in 3 months. While it was fun, I don't remember having a whole lot of free time that semester.