Wikipedia:Articles for deletion/Swirl function

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:{{la|1=Swirl function}} – (View AfDView log | edits since nomination)

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Not notable. There is a [https://mathworld.wolfram.com/Swirl.html MathWorld page] on the same subject (two sentences along with figures). The article cites a book – Trott, M., Graphica 1: The World of Mathematica Graphics. The Imaginary Made Real: The Images of Michael Trott. Champaign, IL: Wolfram Media, pp. 36-37 and 86, 1999 – which I concede I don't have a copy of, but which I think is unlikely to be the significant coverage we are looking for. There are search results for the phrase "swirl function", with a variety of meanings, especially in fluid mechanics, but not for the subject of this article. Adumbrativus (talk) 10:02, 17 November 2022 (UTC)

• Note: This discussion has been included in the list of Mathematics-related deletion discussions. Adumbrativus (talk) 10:02, 17 November 2022 (UTC)

Keep : Swirl is a rather non-firmly-settled term for a generic group of functions. The group of functions may also be encountered or aliased as vortices, eddies, and more.

It's true that vortices is a somewhat highly studied phenomenon in physics & engeneering, but the topic itself does not let itself encapsulate to just that and similar. It rather has pure applied mathematical application too. E.g. one needs very little research to find an abundance of swirl pens available for Photoshop - and, oh, Mr. Swirl failed.

WStrBinA (talk) 22:48, 21 November 2022 (UTC)

• Delete per the compelling nomination. As with many pages in MathWorld, this doesn't seem to really be a thing. --JBL (talk) 18:31, 22 November 2022 (UTC)
• Delete. With only a single source this does not appear to pass WP:GNG. The MathWorld page is not independent of the source (both are closely associated with the Mathematica software system), is not in-depth, is only dubiously reliable, and does not support the article's claim that this is a name for a specific function. Searching MathSciNet and zbMATH for the title phrase found one paper each (different papers) but they appear to use "swirl function" to mean something unrelated, a given function describing swirl in a liquid rather than this special function. —David Eppstein (talk) 01:43, 23 November 2022 (UTC)

• Comment I suspect this page is referring to a class of functions used to create swirl effects in image processing and photography. See for instance, [https://www.leadtools.com/help/sdk/image-processing-functions/swirl.html] and [https://www.leadtools.com/help/sdk/image-processing-functions/swirl.html]. I don't think there is enough deep coverage out there to justify an article, but they are definitely a thing and swirl distortions were even a trend on social media at one point. A summary of this might fit in an article on say image filter effects, but I don't know of such an article. --{{u|Mark viking}} {Talk} 01:53, 23 November 2022 (UTC)
• Delete Yet another dubious term from MathWorld. I can't see an argument for wiki-notability here, and even if swirl filters/swirl distortion effects are a topic we could cover on another (yet-to-be-determined) page, it doesn't look like "swirl function" would be a good redirect. XOR'easter (talk) 04:57, 23 November 2022 (UTC)

{{clear}}

:The above discussion is preserved as an archive of the debate. Please do not modify it. Subsequent comments should be made on the appropriate discussion page (such as the article's talk page or in a deletion review). No further edits should be made to this page.