> Professors also want the best for their students, and so the latest edition is prescribed. No, that's not it at all. Calculus 17th edition is not in any way

> Professors also want the best for their students, and so the latest edition is prescribed. No, that's not it at all. Calculus 17th edition is not in any way better than Calculus 16th edition. If anything, the newer one has more typos, weighs more, and is more expensive. A 600-page single-variable calculus text does not help students learn the material, since the small number of wonderful ideas that make up calculus are diluted in a fetid sea of repetitive examples, mindless busywork, pointless "real-world applications" that have no relevance to the real world, and a general tendency to give recipes that guarantee you will get the right answer even if you have no idea what you are doing. That's not math. That's the opposite of math.