I have been studying Courant’s “Differential and Integral Calculus” (https://www.ime.usp.br/~gorodski/ps/Courant-DifferentialIntegralCalculusVolI.pdf) for about a month now, doing all of the problems to each section and, well, struggling. Having completely understood that I liked that textbook, I ordered both volumes on Amazon. However now I find out that there exists another textbook, which originated from the aforementioned one, and it was written by Courant and Fritz John (namely, “Introduction to Calculus and Analysis” http://www.astrosen.unam.mx/~aceves/Metodos/ebooks/courant_john1.pdf). It is now of utmost importance to me to understand whether I went on a folly by buying those books, and it is by asking you: will I miss out on a lot if I read the former instead? Is Courant and John’s book better, more rigorous and does it cover more? I am willing to study calculus and analysis in all of their entirety, so I must now. Please, just tell me no matter how harsh the truth is.
2026-04-13 19:25:38.1776108338
How different is Courant’s textbook from the one by himself and Fritz John?
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