Did not like the course, every equation and rational for procedure seemed to appear out from magic. Class was very fast paced and just a big "what just happened". Surprisingly short amount of time to finish each homework. Way too memorization heavy and the final exam was an absolute mess (read: 20 pages). None of the people I talked to finished the exam, and this is from me talking with all my friends in the honours math group, where we are used to finishing exams that people say they couldn't finish. I'd take 223 over 215 any day. Though I do suppose the topics are useful for engineers and physicists.