我需要类似的东西$\curvearrowright$
,但指向两个方向。这是交换图。谢谢!
答案1
以下是两个版本:一个是从 Heiko 那里偷来的 从他的回答中
\documentclass{article}
\usepackage{mathtools,amssymb,graphicx}
\newcommand{\myarrow}{\scalebox{1.2}[2]{$\mathclap{\curvearrowleft}\mkern2.2mu
\mathclap{\curvearrowright}$}}
% from package mathabx:
\DeclareFontFamily{U}{mathb}{\hyphenchar\font45}
\DeclareFontShape{U}{mathb}{m}{n}{
<5> <6> <7> <8> <9> <10> gen * mathb
<10.95> mathb10 <12> <14.4> <17.28> <20.74> <24.88> mathb12
}{}
\DeclareSymbolFont{mathb}{U}{mathb}{m}{n}
\DeclareFontSubstitution{U}{mathb}{m}{n}
\DeclareMathSymbol{\downtouparrow}{3}{mathb}{"FF}
\newcommand*{\Myarrow}{%
\scalebox{1}[-2]{$\mathclap{\downtouparrow}\mkern0.5mu
\mathclap{\reflectbox{$\downtouparrow$}}$}
}
\begin{document}
\[
\myarrow
\]
\[
\Myarrow
\]
\end{document}