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$\cdots$和$\dots$

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APPSYZY Posted 2022-4-26 16:24 |Read mode
$X_1\times\dots\times X_n$和$X_1\times\cdots\times X_n$为什么看上去是一样的?前者的省略号为什么没有显示成沉底的$\dots$呢?

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kuing Posted 2022-4-26 16:30

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 Author| APPSYZY Posted 2022-4-26 16:36
Last edited by APPSYZY 2022-4-26 16:44回复 2# kuing
原来是 amsmath 对 \dots 重新定义了复杂的自适应规则呀……多谢 kuing!
回到这个问题,使用 \ldots 就可以强制省略号基线对齐了:$X_1\times\ldots\times X_n$

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kuing Posted 2022-4-26 17:46
这么巧就刚刚在知乎出现关联问题:
数学排版中,省略号 ⋯ 和 … 该如何选择?
zhihu.com/question/530110763

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