Wikipedia:Articles for deletion/Coshc function

Coshc function

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Coshc function (edit | talk | history | protect | delete | links | watch | logs | views) – (View log | edits since nomination)

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This concept $\operatorname {coshc} (x)=\cosh(x)/x$ is not notable. To begin, I checked the four sources cited in the article. The first, den Outer et al. [1], at one point contains ${\frac {\cosh \kappa r}{\kappa r}}$ as part of a larger equation, and that's all. The second (Körpinar [2]), third (Sönmez [3]), and fourth (ten Thije Boonkkamp et al. [4]) contain neither "coshc" nor even $\cosh x/x$ for anything in place of x. The article also formerly cited http://mathworld.wolfram.com/CoshcFunction.html which is currently a dead link and I can't confirm it ever existed. I found no other potential sources from a search. Adumbrativus (talk) 07:06, 12 January 2024 (UTC)

• Note: This discussion has been included in the list of Mathematics-related deletion discussions. Adumbrativus (talk) 07:06, 12 January 2024 (UTC)
• Redirect to Hyperbolic function, where a brief mention of such second-tier functions can be added. Owen× ☎ 14:07, 13 January 2024 (UTC)
• Comment: I suggest we add Sinhc function, Tanhc function and Tanc function to this AfD. All suffer from the same lack of independent notability, and all can be included as a brief definition under the Hyperbolic function page. Pinging @David Eppstein: for an expert opinion. Owen× ☎ 14:13, 13 January 2024 (UTC)