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I'm redoing the course after giving up last time due to the endemic errors in the pdf's. Let me say that they don't cease. I'd estimate every pdf to have at least one fundamental error somewhere which can leave you stuck for hours or even days questioning concepts that you learned, when in fact it was just due to an error.
My advice, and what I'm doing this second time, is to only follow the video lectures and the Recitation videos. These are error-free. I realize you'll miss out on a lot of practice, but it might be good to get the concepts down and then afterwards get a workbook for practice after you complete the course. At least, that is my plan this second time around. I know if I start to follow the pdf's again I'll get frustrated and quit again, the errors are just too rampant, and from my last experience there are no replacement pdf's.
Thanks for the advise! I might use the questions on here to start making a collective list of errors? Just a suggestion. Thank you for being so attentive!!!