1

angle symbol

How can I make the angle symbol with LaTeX?

6

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}

enter image description here

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}

enter image description here

  • 1
    @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

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