答案1
答案2
以下是我的示例:
\documentclass[12pt]{report}
\usepackage{tikz}
\begin{document}
$\circ $
$\bullet$
$\bigcirc$
Some Text \tikz\draw[black,fill=black] (0,0) circle (1ex); more text
\end{document}
另请检查:如何绘制实心彩色圆圈?对于 ams-math 文档:http://ftp.acc.umu.se/mirror/CTAN/info/short-math-guide/short-math-guide.pdf。
答案3
您可以在mathabx
不加载包的情况下使用一些字形:
\documentclass{article}
\usepackage{geometry}
\DeclareFontFamily{U}{mathb}{\hyphenchar\font45}
\DeclareFontShape{U}{mathb}{m}{n}{ <-6> mathb5 <6-7> mathb6 <7-8>
mathb7 <8-9> mathb8 <9-10> mathb9 <10-12> mathb10 <12-> mathb12 }{}
\DeclareSymbolFont{mathb}{U}{mathb}{m}{n}
%
\DeclareFontFamily{U}{mathx}{\hyphenchar\font45}
\DeclareFontShape{U}{mathx}{m}{n}{ <-6> mathx5 <6-7> mathx6 <7-8>
mathx7 <8-9> mathx8 <9-10> mathx9 <10-12> mathx10 <12-> mathx12 }{}
\DeclareSymbolFont{mathx}{U}{mathx}{m}{n}
\DeclareMathSymbol{\newmoon} {\mathord}{mathb}{"4D}%swapped in the original file
\DeclareMathSymbol{\fullmoon} {\mathord}{mathb}{"4E}%swapped in the original file
\DeclareMathSymbol{\bigovoid} {\mathop}{mathx}{"EC}
\newcommand{\Circ}{$\vcenter{\hbox{$\newmoon\;$}}$}
\newcommand{\CIRC}{${\bigovoid}\;$}
\newcommand{\thickdot}{$\vcenter{\hbox{$\fullmoon\;$}}$}
\newcommand{\DOT}{$\vcenter{\hbox{\Large$\fullmoon\:$}}$}
\begin{document}
\fbox{\parbox{0.9\linewidth}{Here the vertices are indicated according to their heights, where \DOT denotes a vertex of height $3$, \thickdot denotes height $2$, \Circ denotes height $1$ and \CIRC denotes height $0$. }}
\end{document}