I want to start by saying that I know this may be perceived as a "stupid" question, but I'm quite curious... What class more difficult...Calc 3 or DE? I'm into my final week of Calc 3, and next week I start DE. I decided to take both during summer sessions as I did this for Calc 1-2 last summer and loved the pace of the classes during the summer. I am doing well in Calc 3, and am curious as to how difficult DE will be in comparison. Also, are there any basics from previous courses that I should get good at before I start DE?