# How can I do this angle symbol?

How can I make the angle symbol with LaTeX?

The symbol in the picture seems to have been built from the “less than” symbol and a parenthesis. I also present an alternative.

\documentclass{article}
\usepackage{amsmath}
\usepackage{amssymb}% for \sphericalangle

\newcommand{\arcangle}{%
\mathord{<\mspace{-9mu}\mathrel{)}\mspace{2mu}}%
}

\begin{document}

$\arcangle ABC=45^\circ$

$\sphericalangle ABC=45^\circ$

\end{document}


If you want the symbol centered with respect to capital letters:

\documentclass{article}
\usepackage{amsmath}

\newcommand{\arcangle}{\mathord{\mathpalette\doarcangle\relax}}
\newcommand{\doarcangle}[2]{%
\hbox{%
\sbox0{$#1B$}%
\sbox2{$#1<$}%
\raisebox{\dimexpr\dp2+(\ht0-\ht2)/2}{%
$#1<\mspace{-9mu}\mathrel{)}\mspace{2mu}$%
}%
}%
}

\begin{document}

$\arcangle ABC=45^\circ$

\end{document}


• @user149743 Just a remark: the symbol you'd like to get looks horrible. ;-) – egreg Dec 3 '17 at 12:06
• how i do vertical alignment this symbol? – user149743 Dec 8 '17 at 19:47
• @user149743 I added a way to raise the symbol – egreg Dec 8 '17 at 20:34