Talk:∆

Untitled 2006 topic

Shouldn't this redirect to Delta (letter)? --83.147.171.12 11:03, 17 June 2006 (UTC)[reply]

Δ redirects to Delta (letter), ∆ to Triangle --Henrygb 16:34, 24 July 2006 (UTC)[reply]

No, Symmetric difference, which is its most common maths usage 124.189.227.115 02:06, 30 October 2006 (UTC)[reply]

This is a triangle, not a Delta. I have included "Symmetric difference" in Delta --Henrygb 10:03, 30 October 2006 (UTC)[reply]

... Not everyone has access to all the characters on their keyboards, or can visually distinguish between them; I would also worry about visually impaired users or users using a text-reader that might hang up on the characters. For instance, we just got a confused editor on Talk:Triangle (disambiguation) (and see the first user on this page and the talk page for pretty much all these articles for this exact same query from confused users). I'm setting this up as a disambiguation; there's no reason to use a redirect if there's a possibility of ambiguity. (Note -- I'm not touching "Δ" redirect right now, because I suspect that people won't know to find and use that character unless they know the difference. That may be wrong and perhaps both Δ and ∆ should have identical disambiguation pages. --lquilter 17:57, 4 February 2007 (UTC)[reply]

Homoglyphs

Two characters are involved, different by Unicode definition:

A. U+0394 Δ GREEK CAPITAL LETTER DELTA (Δ); article = [[ Δ ]] (R) → Delta (letter)
B. U+2206 ∆ INCREMENT; article = [[ ∆ ]] (DAB)

I note that B has two different targets (both are DAB pages). I see no technical errors. My questions are: is this the best way to handle these homoglyphs? Wouldn't the dab pages need more DABing, like =See also= mentioning (at least), hatnote? Note that this page uses the two glyphs intermixed (eg the Laplace and Increment DAB terms). Ping LaundryPizza03. DePiep (talk) 10:02, 28 May 2022 (UTC)[reply]

And there is also

C. U+25B3 △ WHITE UP-POINTING TRIANGLE; article = [[ △ ]] (R) → Geometric Shapes (Unicode block)

-DePiep (talk) 10:17, 28 May 2022 (UTC)[reply]

@DePiep: Ask WT:WPDAB forhelp on this one. I would recommend either AfD or including only the articles Delta (letter), Increment operator, and Triangle. –LaundryPizza03 (d c̄) 04:25, 30 May 2022 (UTC)[reply]

OK, since no cut-and-dried solution (we know). To cover all homoglyphs. OTOH, I do think regular DAB terms ie meanings like Symmetric difference should stay. In other situations, such a meaning even be primary topic. And, which page to AfD you mean? -DePiep (talk) 04:33, 30 May 2022 (UTC)[reply]

@DePiep: Taking this page to AfD. Or, do you think an RfC might help elicit a solution here? –LaundryPizza03 (d c̄) 01:45, 31 May 2022 (UTC)[reply]

@LaundryPizza03: imo no AfD needed: this page is helpful. The character is a regular and understandable search term . Our job is to lead the readers who arrive here (not by incident) to a useful article. In general, can be the page itself having content, a DAB page, or a redirect. There are more, e.g., Category:Redirects from Unicode characters (31,477). RfC or a talk:DAB first (not much time this week to initiate). -DePiep (talk) 04:49, 31 May 2022 (UTC)[reply]

In short, LP03, there is no DAB/redirect MOS on homoglyphs. I think a WT:DAB is the place to develop this. -DePiep (talk) 05:30, 31 May 2022 (UTC)[reply]

Incidentally, someone earlier asked about the entry list on this very page Wikipedia talk:Disambiguation § A letter + its usage. ;-) -DePiep (talk) 05:31, 31 May 2022 (UTC)[reply]

∆ Is Greek Alphabet

∆ 156.57.229.102 (talk) 22:27, 10 January 2024 (UTC)[reply]