this is really a question about math and not books. I am mainly wondering if reading really old calculus books is still beneficial for undrgraduate students today. I was told that the material covered won't be of much benefit, things like curves, various mechanical integration methods, etc., and that I would be better off studying a 'calculus with an intro to analysis' type book like Apostol or Spivak's calculus. Is this true? Some specific examples of old books I have in mind are:
One thing's for sure: The problems in these books are much harder than in modern books, which is very appealing to me coming from an olympiad background.
So they aren't as far back as say Cauchy, but still are fairly old. I would still be interested however in knowing if something like Cauchy's Calcul Differentiel et Integral (I can read french!) is worth studying today; I know that Clerk Maxwell studied it at Edinburgh University for instance (before "going up" to Cambridge): https://archive.org/details/leonsdecalculdi02goog