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sqrt 高+深 不变?

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hbghlyj Posted at 2024-3-6 18:01:32 |Read mode
  1. \documentclass{article}
  2. \usepackage{amsmath}
  3. \begin{document}
  4. \newsavebox{\sqrtbox}
  5. \savebox{\sqrtbox}{$\sqrt{\rule{1pt}{13.6pt}}$}
  6. \the\dimexpr \ht\sqrtbox+\dp\sqrtbox
  7. \savebox{\sqrtbox}{$\sqrt{\rule{1pt}{13.7pt}}$}
  8. \the\dimexpr \ht\sqrtbox+\dp\sqrtbox
  9. \savebox{\sqrtbox}{$\sqrt{\rule{1pt}{13.8pt}}$}
  10. \the\dimexpr \ht\sqrtbox+\dp\sqrtbox
  11. \savebox{\sqrtbox}{$\sqrt{\rule{1pt}{13.9pt}}$}
  12. \the\dimexpr \ht\sqrtbox+\dp\sqrtbox
  13. \savebox{\sqrtbox}{$\sqrt{\rule{1pt}{14.0pt}}$}
  14. \the\dimexpr \ht\sqrtbox+\dp\sqrtbox
  15. \end{document}
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18.40015pt 18.40015pt 18.40015pt 18.40015pt 18.40015pt

$\sqrt{\rule{1pt}{13.6pt}}\sqrt{\rule{1pt}{13.7pt}}\sqrt{\rule{1pt}{13.8pt}}\sqrt{\rule{1pt}{13.9pt}}\sqrt{\rule{1pt}{14.0pt}}$

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 Author| hbghlyj Posted at 2024-3-6 18:03:45
base每增0.1pt,则\sqrt高度增0.05pt,深度减0.05pt

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kuing Posted at 2024-3-6 18:15:53
\sqrt 本身就是只有若干个不同的固定尺寸啊。
(当超过了最大尺寸之后,就会变成竖直的那种,用竖线拼接,不超的情况下总是那几个尺寸)

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kuing Posted at 2024-3-6 21:58:18
动图演示:
sqrt的尺寸.gif

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kuing Posted at 2024-3-6 22:14:42
Last edited by kuing at 2024-3-6 22:27:00从楼上的动图可以看出,默认情况下,斜线的根号只有 5 种尺寸。
而即使变成竖线之后,也不是连续变化的,还是一级一级跳跃的。

而有的宏包会增加这个数量,比如 yhmath 宏包,经测试,它的斜线根号一共有 13 种尺寸之多,有很大的根号,内部可容纳总高 65pt 的东东。

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2025-4-20 22:18 GMT+8

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