我想排版积分
$$ \int{\dfrac{1}{\cos^2\left(5 - \dfrac{3x}{4}\right)}}\,\mathrm{d}x$$
我试过
\documentclass[12pt,a4paper]{article}
\usepackage{amsmath}
\usepackage{amsfonts}
\usepackage{amssymb}
\begin{document}
$$ \int{\dfrac{1}{\cos^2\left(5 - \dfrac{3x}{4}\right)}}\,\mathrm{d}x$$
\end{document}
我得到了
积分符号不够高。如何排版这个积分?
答案1
选项1
\documentclass[preview,border=12pt,varwidth]{standalone}% change it back to your own document class
\usepackage{amsmath}
\begin{document}
\abovedisplayskip=0pt\relax% remove this line in your production
\[
\int \frac{1}{\cos^2\left(5 - \frac{3x}{4}\right)}\,\mathrm{d}x
\]
\end{document}
选项 2
\documentclass[preview,border=12pt,varwidth]{standalone}% change it back to your own document class
\usepackage{amsmath}
\begin{document}
\abovedisplayskip=0pt\relax% remove this line in your production
\[
\int \frac{1}{\cos^2\left(5 - \frac{3}{4}x\right)}\,\mathrm{d}x
\]
\end{document}
选项 3
我认为 Enrico 教授喜欢这种风格。
\documentclass[preview,border=12pt,varwidth]{standalone}% change it back to your own document class
\usepackage{amsmath}
\begin{document}
\abovedisplayskip=0pt\relax% remove this line in your production
\[
\int \frac{1}{\cos^2(5 - 3x/4)}\,\mathrm{d}x
\]
\end{document}
选项 4
以下是 Thorsten Donig 的评论。
\documentclass[preview,border=12pt,varwidth]{standalone}% change it back to your own document class
\usepackage{amsmath,xfrac}
\begin{document}
\abovedisplayskip=0pt\relax% remove this line in your production
\[
\int \frac{1}{\cos^2 (5 - \sfrac{3x}{4})}\,\mathrm{d}x
\]
\end{document}
选项 ∞
根据下面 Qrrbrbirlbel 和 Egreg 的评论。
\documentclass[preview,border=12pt]{standalone}% change it back to your own document class
\usepackage{amsmath,xfrac}
\begin{document}
\abovedisplayskip=0pt\relax% remove this line in your production
\begin{gather*}
\int \sec^2\left(5 - \tfrac{3x}{4}\right)\,\mathrm{d}x \\
\int \sec^2\left(5 - \tfrac 3 4 x\right)\,\mathrm{d}x \\
\int \sec^2(5 - 3x/4)\,\mathrm{d}x \\
\int \sec^2\left(5 - \sfrac{3x}{4}\right)\,\mathrm{d}x
\end{gather*}
\end{document}