Talk:Cartesian coordinate system

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Copyright problem removed[edit]

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Fix IPA?[edit]

I don't know what the wikipedia conventions are specifically for "british english" phonetics, since phonetics aren't consistent in the uk. However, I'm pretty sure it's against convention to remove the IPA /r/ from the pronunciation since different accents automatically handle it as discussed in

I advise either a general english pronunciation as is used in most pages, or if there is a distinct difference in pronunciation of "sian" between UK and US that isn't attributed to accents then maybe keep them separate. All I know is the /r/ definitely should not be omitted in either case. Jgkilian777 (talk) 14:19, 27 April 2021 (UTC)Reply[reply]

Question Marks?[edit]

In the Applications section, there are multiple instances of the writer asking the reader a direct question. I feel that this is inappropriate for an encyclopedia and would be more fitting for a textbook. — Preceding unsigned comment added by (talk) 23:57, 29 May 2021 (UTC)Reply[reply]

Fixed. Thanks for pointing this out. Face-smile.svgAnita5192 (talk) 01:04, 30 May 2021 (UTC)Reply[reply]

Right-hand rule: Clarification on the permutationally cyclic aspects[edit]

The present article reads

"If the index finger of the right hand is pointed forward, the middle finger bent inward at a right angle to it, and the thumb placed at a right angle to both, the three fingers indicate the relative orientation of the x-, y-, and z-axes in a right-handed system. The thumb indicates the x-axis, the index finger the y-axis and the middle finger the z-axis."

The "Right-hand rule" article reads

"For right-handed coordinates the right thumb points along the z axis in the positive direction and the curling motion of the fingers of the right hand represents a motion from the first or x axis to the second or y axis."

George Rodney Maruri Game (talk) 05:14, 24 December 2022 (UTC)Reply[reply]

The two descriptions define the same orientation, as differing by a circular permutation of x, y, z. D.Lazard (talk) 10:43, 24 December 2022 (UTC)Reply[reply]

Include the legend about the fly?[edit]

Famously, though I don't know how verified this is, Descartes came up with the coordinate system watching a fly in the corner of his house:

Would this be worthwhile including in the article? It seems to me, as a non mathey person, that additional historical context is often useful for better understanding concepts. Even when they don't have direct bearing on the thing, it gives color and texture to things, helps me understand the problems that individuals were trying to solve when they came up with their solutions. Thedonquixotic (talk) 21:16, 24 March 2023 (UTC)Reply[reply]