[XeTeX] (small) problem with vectors

[António Fernandes]

Hi Sven,

As a workaround you can consider

$\vec{a}\mspace{2mu}{}^{i,j}_k$

I tried first

$\vec{a}{}^{i,j}_k$

but this "solution" is unsatisfactory due to bad spacing (in my  
opinion, of course).

Best regards,
António Fernandes


On Dec 13, 2008, at 5:29 PM, Sven Willert (Arndt) wrote:

> Hi,
>
> I've found a small problem. Using xelatex and unicode-math (which I  
> know is beta) something like
>
> \documentclass[a4paper]{article}
> \usepackage[]{fontspec}
> \usepackage[math-style=tex]{unicode-math}
> \begin{document}
> 	$\vec{a}^{i,j}_k$
> \end{document}
>
> leads to a strange result. The arrow of the vector is not
> centered above the vector (a in the example) but centered
> above the whole construct.
>
> \documentclass[a4paper]{article}
> \usepackage[]{fontspec}
> \begin{document}
> 	$\vec{a}^{i,j}_k$
> \end{document}
>
> Runs perfectly.
>
> Is there an easy way to work around it?
>
> I want to hand in my ph.d. thesis on tuesday and can't just forget  
> about unicode-math because that would mean to much work. It's great,  
> though!
>
> I could life with using construct like  
> "{\overrightarrow{r }}^{\delta p}_i(t)". That concrete construct,  
> however, is not beautiful because the arrow is way to large but much  
> better because it's centered above the vector....
>
> Best regards,
> Sven
> -
> Sven Willert (Arndt)
> Institut für Geowisenschaften (Geophysik)
> Christian-Albrechts-Universität zu Kiel
> Otto-Hahn-Platz , 24118 Kiel, Germany
> phone:  +49 431 880-3911
> fax:  +49 431 880-4432
> e-mail: sarndt at geophysik.uni-kiel.de
> URL:  http://www.geophysik.uni-kiel.de/
>
>
>
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