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LaTeX - arc notation over 2 or more characters?

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Paul Sjoberg

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Jan 19, 2003, 1:49:19 PM1/19/03
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Does anyone know how I can create the arc notation over two or three
characters in LaTeX? I'm teaching geometry and I can't figure out how
to get the symbol for "arc AB". I can get a hat, a tilde, an arrow (for
a ray), and a line, but I can't get the arc. The symbol "\frown" is
close to what I need. If I use "\overset{\frown}{AB}" it looks okay.
But "\overset{\frown}{ABC}", doesn't have the arc over all three
characters.

Thanks in advance.

Paul

Yvon Henel

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Jan 19, 2003, 2:38:59 PM1/19/03
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Paul Sjoberg a écrit :

> Does anyone know how I can create the arc notation over two or three
> characters in LaTeX? I'm teaching geometry and I can't figure out
> how
> to get the symbol for "arc AB".

You could try the package *yhmath* and the command \wideparen{ABC}

> Thanks in advance.

My pleasure.

--
Y. Henel, TeXnicien de surface
there's no fruit in my address

Scott Pakin

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Jan 19, 2003, 2:35:53 PM1/19/03
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Look up "extensible accents" in the Comprehensive LaTeX Symbol List
(available from CTAN).

-- Scott

Gianfranco Boggio-Togna

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Jan 21, 2003, 12:25:00 AM1/21/03
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Paul Sjoberg asked:

> Does anyone know how I can create the arc notation over two or three
> characters in LaTeX?

My package 'metre' (nothing to do with geometry...) provides a \tie
command which does just that. Try: \tie[.67]{ABC}

/tex/macros/latex/contrib/supported/metre

You can safely ignore the rest of the package, except for one thing:
the package redefines the standard TeX control sequence \breve (the
original definition is assigned to the control sequence \Breve).

--
Gianfranco Boggio-Togna
Milano (Italy)

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