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A comment on Mathematical Notation, Past and Future (2000). Parent comment

Re:Mathematical Notation, Past and Future (2000) by DarylZero on Tuesday December 28, 2021 @03:03PM (#29717408)
You can point to "sin", but in practice math just doesn't use multi-char variable names. The trig functions are special cases. Doesn't mean you're allowed to name arbitrary vars like that.
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Re:Mathematical Notation, Past and Future (2000) by kmill on Tuesday December 28, 2021 @04:13PM (#29718263)
What about ker, coker, im, hom, end, aut, lim, colim, Set, Top, Man, Mat, Vect, GL, SL, SO, Lie, Gr, Tor, Ext, tr, Rep, char, rank, Isom, ann, hull, Diff, ...? I'm just copying multiletter names out of my preamble.tex file here.

I get that these aren't variables, but it's really not so uncommon outside of trigonometry to have multi-letter names for things that appear in equations.

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