Hi Henri and Alan,

Thank you for your answers.
Fabrice

Le mer. 26 sept. 2018 à 23:52, Alan Braslau <braslau.list@comcast.net> a écrit :

On Thu, 27 Sep 2018 09:22:00 +1200
Henri Menke <henrimenke@gmail.com> wrote:

> On 27/09/18 09:15, Fabrice Couvreur wrote:
> > Hello,
> > How to improve the notation of an arc ?
> > Thank you
> > Fabrice
> >   
>
> Use the correct math fence
>
> \starttext
> \m{\overparent{\rm AB}}
> \stoptext
>
> > \starttext
> >  \m{\overset{\frown}{\rm AB}}
> > \stoptext

And, if you prefer, you can use MetaPost (rather than the font extensible):

\useMPlibrary[mat]

\definemathstackers
  [mp]
  [alternative=mp]

\definemathextensible [mp] [overparent] ["FE3DC]


Alan
___________________________________________________________________________________
If your question is of interest to others as well, please add an entry to the Wiki!

maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context
webpage  : http://www.pragma-ade.nl / http://context.aanhet.net
archive  : https://bitbucket.org/phg/context-mirror/commits/
wiki     : http://contextgarden.net
___________________________________________________________________________________