[texhax] Centring \ddot above \widehat.
Enrico Schumann
es at enricoschumann.net
Sat Mar 10 14:59:00 CET 2018
On Sat, 10 Mar 2018, Rolf Turner writes:
> Putting a "double dot" above a wide hat seems to centre the dots over
> the underlying symbol, and thus puts them somewhat to the left of the
> peak of the wide hat --- which looks wrong to me.
>
> A Google search turned up only information about a single dot and hat;
> the posting
>
>> https://tex.stackexchange.com/questions/317603/how-to-put-a-dot-accent-above-a-hat-accent-in-math-mode
>
> indicated that using amsmath would get things right --- and indeed it
> does in this instance. However using amsmath seems to have no impact
> upon the "double wide" case. Is there any remedy?
>
> I have attached the LaTeX source and the pdf output of a minimal
> reproducible example.
>
> Thanks for any advice.
>
> cheers,
>
> Rolf Turner
In Plain TeX, there is a command \skew. You could try
\[
\textrm{whatever} = \skew3\ddot{\widehat{Q}}
\]
Instead of skew3, you may use skew1, skew2,...
It's described in the TeXBook, Chapter 16. Quote:
"The idea is to fiddle with the amount of skew
until you find what pleases you best."
--
Enrico Schumann
Lucerne, Switzerland
http://enricoschumann.net
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