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Jul 29, 2014 at 22:12 comment added Amir Asghari @ChristianRemling sure, I've just mentioned Pell (or better to say Brouncker) story as a reminder of the often complexity of "for a reason" part of your comment. Though, Descartes famously regarded negatives as "false". Thus, it would be safe to claim that Cartesian coordinates "as we know it" is not that same as Descartes himself knew it
Jul 29, 2014 at 21:33 comment added Christian Remling As I wrote, Descartes (with some pride) reports on this the Treatise, so this is not a case of a mistaken identity.
Jul 28, 2014 at 22:06 comment added Amir Asghari @ChristianRemling Just to remind you that Pell's equation is called as such simply because Euler confused Brouncker with Pell! :)
Jul 28, 2014 at 9:52 answer added Charles Matthews timeline score: 1
Jul 28, 2014 at 1:27 answer added John Stillwell timeline score: 5
Jul 28, 2014 at 0:01 answer added Francois Ziegler timeline score: 10
Jul 27, 2014 at 23:36 comment added Christian Remling This doesn't quite answer the question as posed, but I think they are called Cartesian coordinates for a reason (there's a passage in the treatise on this, too).
Jul 27, 2014 at 22:42 history asked Amir Asghari CC BY-SA 3.0