答案1
字体fdsymbol
提供了合适的\smallcirc
符号,但需要缩放。
\documentclass{article}
\usepackage{amsmath}
\DeclareFontFamily{U}{FdSymbolA}{}
\DeclareFontShape{U}{FdSymbolA}{m}{n}{
<-> s*[.28] FdSymbolA-Regular
}{}
\DeclareSymbolFont{fdsymbol}{U}{FdSymbolA}{m}{n}
\DeclareMathSymbol{\smallcirc}{\mathord}{fdsymbol}{"60}
\makeatletter
\newcommand{\hollowcolon}{\mathpalette\hollow@colon\relax}
\newcommand{\hollow@colon}[2]{%
\mspace{1mu}%
\vbox{%
\hbox{$\m@th#1\smallcirc$}
\nointerlineskip
\kern.45ex
\hbox{$\m@th#1\smallcirc$}
\kern-.06ex
}%
\mspace{1mu}%
}
\makeatother
\newcommand{\hcolondel}[1]{%
\mathopen{\hollowcolon}#1\mathclose{\hollowcolon}%
}
\newcommand{\colondel}[1]{%
\mathopen{:}#1\mathclose{:}%
}
\begin{document}
\begin{gather*}
\hcolondel{X^{\mu}(z,\bar{z}) X^{\nu_{n}}(z^{\prime},\bar{z}^{\prime})}_{a+\hcolondel{Z}}
\\
\colondel{X^{\mu}(z,\bar{z}) X^{\nu_{n}}(z^{\prime},\bar{z}^{\prime})}_{a+\colondel{Z}}
\end{gather*}
\end{document}
答案2
⦂
\typecolon
您可以在包装中找到符号“⦂” stix
。
\usepackage{stix}
...
$$ X^\mu (z, \bar z) X^\nu (z', \bar z') = \typecolon X^\mu (z, \bar z) X^\nu (z', \bar z') \typecolon $$
但是,stix
会改变数学字体。
我们可以使用以下技巧提取这个符号如何仅使用 STIX 字体的选定数学符号?:
\DeclareFontEncoding{LS1}{}{}
\DeclareFontSubstitution{LS1}{stix}{m}{n}
\DeclareSymbolFont{symbols2}{LS1}{stixfrak}{m}{n}
\DeclareMathSymbol{\typecolon}{\mathbin}{symbols2}{"25}
答案3
这里我使用缩放堆栈进行操作。适用于所有数学样式。
\documentclass{article}
\usepackage{stackengine,scalerel}
\newcommand\textaltcolon{\ensurestackMath{\stackon[1.5ex]{\circ}{\circ}}}
\newcommand\altcolon{\savestack\Tmp{\raisebox{-.7pt}{$\textaltcolon$}}%
\dp\Tmpcontent=\dimexpr\dp\Tmpcontent-.7pt\relax%
\mathrel{\scalerel*{\Tmp}{:}}}
\begin{document}
\[
X^{\mu}(z,\bar{z}) X^{\nu_{n}}(z^{\prime},\bar{z}^{\prime})\altcolon:
\]
\[
\scriptstyle X^{\mu}(z,\bar{z}) X^{\nu_{n}}(z^{\prime},\bar{z}^{\prime})\altcolon:
\]
\[
\scriptscriptstyle X^{\mu}(z,\bar{z}) X^{\nu_{n}}(z^{\prime},\bar{z}^{\prime})\altcolon:
\]
\[A:B\quad A\altcolon B\]
\[A:\quad A\altcolon \quad :B\quad \altcolon B \]
\[
\altcolon:
\scriptstyle \altcolon:
\scriptscriptstyle \altcolon:
\]
\end{document}
飞涨:
答案4
⦂ Z 名词类冒号
未确定脚本的代码
杂项数学符号-B Unicode 版本 3.2
统一码 U+2982
HTML ⦂ ⦂. 在后面添加 ;!s!!
CSS 2982
UTF-8 0xE2 0xA6 0x82 UTF-16 0x2982 UTF-32 0x00002982