The hardest thing about this course was trying to remember the format for the inputs you place into the calculator functions. And guess what? There's a program out there for graphing calculators that tells you the format for those functions!
That's an absolutely unnecessary amount of effort.
Agreed. Honestly, I think most of the trouble that people have with this class comes from the fact that they're trying to memorize the formulas/definitions without really understanding what they're memorizing. If you sit down for fifteen minutes and actually attempt to comprehend what's going on, it becomes remarkably easy.