3

I tried the $\overline{\phantom}$, but it doesn't work. The output should look like this.

[enter image description here]

This can also included between single quotes.

1:

1 Answer 1

6

\phantom had to have an argument, for example

$\overline{\phantom{I}}$

For it you can define \newcommand, for example as is done in the following MWE:

\documentclass[border=3.141592]{standalone}
\newcommand\Bar{$\overline{\phantom{I}}$}

\begin{document}
text \Bar text
\end{document}

enter image description here

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