[NTG-context] $n\choose k$-issue with OpenType math fonts

Andreas Harder andreas.harder at rz-online.de
Fri Mar 4 21:47:34 CET 2011


Am 04.03.2011 um 15:28 schrieb Hans Hagen:

> On 4-3-2011 2:09, Andreas Harder wrote:
>> Hi all,
>> 
>> I'm (re)tying to draw some attention to the $n\choose k$-issue with OpenType math fonts.
>> 
>> I've made some test files:
>> http://dl.dropbox.com/u/151837/OpenType-Math.7z
>> 
>> The best output is generated by LuaLaTeX (at least for Asana and Cambria). Would it be possible to correct the ConTeXt output as well?
> 
> It depends what correction boils down to. Normally it's the opentype font parameters that control the threshold to the next step in a larger delimiter

The placement is right for $n\above 1sp k$, only if the thickness of the par is set to 0, the ‚k‘ is lowered. Perhaps some patch in goodie-file is possible, so one could load it in a font definition.

Andreas


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