How can I put an arc symbol above a letter?

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Michael
Michael 2019-8-15
回答： Walter Roberson 2019-8-15
Hello.
I need to put an arc above a letter (or some letters). Adding a bar or a had is simple, i.e.,
\bar{a}
or
\hat{a}
but
\arc{a}
or
\overarc{ab}
is not supported. Is this possible in matlab to add an arc symbol using Latex notation?

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采纳的回答

Walter Roberson
Walter Roberson 2019-8-15
$\widehat{ab}$
gives something arc-ish
$\stackrel{\frown}{ab}$
gives an arc, if not the prettest of them. Or
$\frown \atop ab$

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