里面的根号是直立的,宏包有没有哪个选项能把根号改成斜体

微信截图_20190824201323.png

\documentclass[openright]{ctexbook}

\usepackage{amsmath}
\usepackage{amssymb}        
\usepackage{amsfonts}          
\usepackage{mathtools}       
\usepackage[libertine]{newtxmath}

\begin{document}

\[\sigma_P^2=\sqrt{\sum_{j=1}^{m}\sum_{k=1}^{m}A_jA_k\sigma_{jk}}\]

\end{document}


5 回答5

1
<p style="box-sizing: content-box; margin-top: 10px; margin-bottom: 10px; padding: 0px; line-height: 1.8; font-size: 14px; word-break: break-word; color: rgb(40, 40, 40); font-family: -apple-system, ">根号的特性就是这样,正常的情形下,根号里面的内容高度过高时,根号会由斜转值,甚至是倾斜的角度会换方向,如果你需要强制的左倾斜根号,可以这么干</p><p style="box-sizing: content-box; margin-top: 10px; margin-bottom: 10px; padding: 0px; line-height: 1.8; font-size: 14px; word-break: break-word; color: rgb(40, 40, 40); font-family: -apple-system, ">\documentclass{ctexart}</p><p style="box-sizing: content-box; margin-top: 10px; margin-bottom: 10px; padding: 0px; line-height: 1.8; font-size: 14px; word-break: break-word; color: rgb(40, 40, 40); font-family: -apple-system, ">\usepackage{newtxmath}</p><p style="box-sizing: content-box; margin-top: 10px; margin-bottom: 10px; padding: 0px; line-height: 1.8; font-size: 14px; word-break: break-word; color: rgb(40, 40, 40); font-family: -apple-system, ">\let\sqrt\undefined</p><p style="box-sizing: content-box; margin-top: 10px; margin-bottom: 10px; padding: 0px; line-height: 1.8; font-size: 14px; word-break: break-word; color: rgb(40, 40, 40); font-family: -apple-system, ">\DeclareSymbolFont{yh}{OMX}{yhex}{m}{n}</p><p style="box-sizing: content-box; margin-top: 10px; margin-bottom: 10px; padding: 0px; line-height: 1.8; font-size: 14px; word-break: break-word; color: rgb(40, 40, 40); font-family: -apple-system, ">\DeclareMathRadical{\sqrtsign}{symbols}{"70}{yh}{"70}</p><p style="box-sizing: content-box; margin-top: 10px; margin-bottom: 10px; padding: 0px; line-height: 1.8; font-size: 14px; word-break: break-word; color: rgb(40, 40, 40); font-family: -apple-system, ">\makeatletter</p><p style="box-sizing: content-box; margin-top: 10px; margin-bottom: 10px; padding: 0px; line-height: 1.8; font-size: 14px; word-break: break-word; color: rgb(40, 40, 40); font-family: -apple-system, ">\DeclareRobustCommand\sqrt{\@ifnextchar[\@sqrt\sqrtsign}</p><p style="box-sizing: content-box; margin-top: 10px; margin-bottom: 10px; padding: 0px; line-height: 1.8; font-size: 14px; word-break: break-word; color: rgb(40, 40, 40); font-family: -apple-system, ">\makeatother</p><p style="box-sizing: content-box; margin-top: 10px; margin-bottom: 10px; padding: 0px; line-height: 1.8; font-size: 14px; word-break: break-word; color: rgb(40, 40, 40); font-family: -apple-system, ">\begin{document}</p><p style="box-sizing: content-box; margin-top: 10px; margin-bottom: 10px; padding: 0px; line-height: 1.8; font-size: 14px; word-break: break-word; color: rgb(40, 40, 40); font-family: -apple-system, ">\[\sqrt{\sum_{j=1}^m}\sqrt[3]{\sum_{j=1}^m}\]</p><p style="box-sizing: content-box; margin-top: 10px; margin-bottom: 10px; padding: 0px; line-height: 1.8; font-size: 14px; word-break: break-word; color: rgb(40, 40, 40); font-family: -apple-system, "><br></p><p style="box-sizing: content-box; margin-top: 10px; margin-bottom: 10px; padding: 0px; line-height: 1.8; font-size: 14px; word-break: break-word; color: rgb(40, 40, 40); font-family: -apple-system, ">\end{document}</p><p style="box-sizing: content-box; margin-top: 10px; margin-bottom: 10px; padding: 0px; line-height: 1.8; font-size: 14px; word-break: break-word; color: rgb(40, 40, 40); font-family: -apple-system, "><img src="https://wenda.latexstudio.net/data/ueditor/php/upload/image/20190825/1566708404870934.png" title="1566708404870934.png" alt="QQ截图20190825124633.png" width="326" height="184"></p><p style="box-sizing: content-box; margin-top: 10px; margin-bottom: 10px; padding: 0px; line-height: 1.8; font-size: 14px; word-break: break-word; color: rgb(40, 40, 40); font-family: -apple-system, ">不过老实说,newtxmath的求和符号也很丑</p><p><br></p>
  • 啊啊啊啊啊啊啊啊啊啊啊啊啊,谢谢!!!!!!!!!!! – spencer 2019-08-25 13:52 回复
1
<p>\usepackage[libertine, smallerops]{newtxmath}</p><p>smallerops能让\sum高度降低,从而稍微美观点</p><p><img src="/data/ueditor/php/upload/image/20190825/1566735475204504.png" title="1566735475204504.png" alt="20190825201716.png"></p>
0
<p>额,这这个,好吧,我也不知道怎么说了。</p>
  • 就不要去动是吗。。。。那我还是用mathptmx好了。。。 – spencer 2019-08-24 22:16 回复
0
<p>其实……你现在已经开始用字体了……为什么不试着接受它本来的样子?</p>
  • 回复 spencer :这就没办法了……字体就是这样设计的…… – OsbertWang 2019-08-24 22:25 回复
  • 这个根号让人无法原谅。。。。 – spencer 2019-08-24 22:23 回复
0
<p>不用newtxmath包就行了。</p>

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