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:::I think pre-Latex, most typesetting systems only had one type of ellipsis, so historical practice was often to just use "ldots" for everything. But using centered dots for arbitrary operators seems to be the general best practice in recent times for mathematical writing in English. For example, the [https://epubs.siam.org/pb-assets/files/SIAM_STYLE_GUIDE_2019.pdf SIAM style guide] (p. 65) says: "Line dots (ldots) are used between variables with other punctuation. Centered dots (cdots) are used between operators." Wiley's mathematical typesetting advice (I won't link it as it's a word doc, lol) says "In elided sums or elided relations, the ellipsis points should be vertically centered between the operation or relation signs". Feel free to search for other style guides / typesetting guides if you want.
:::It would probably be even better to use semantically meaningful \dotsc ({{tmath|\dotsc}}) for commas, \dotsb ({{tmath|\dotsb}}) for binary operations, \dotsm ({{tmath|\dotsm}}) for multiplication by juxtaposition, \dotsi ({{tmath|\dotsi}}) for integrals, or \dotso ({{tmath|\dotso}}) for others. In theory \dots is supposed to figure out which one to use from the context, but the heuristic isn't super sophisticated and it often gets it wrong as in this case. When it goes wrong I usually just write \ldots or \cdots. –[[user:jacobolus|jacobolus]] [[user_talk:jacobolus|(t)]] 17:43, 15 July 2025 (UTC)
: By the way, you shouldn't "omit the addition sign". That's usually considered incorrect. –[[user:jacobolus|jacobolus]] [[user_talk:jacobolus|(t)]] 17:49, 15 July 2025 (UTC)
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