On 6-3-2011 6:03, Aditya Mahajan wrote:
On Sun, 6 Mar 2011, Hans Hagen wrote:

On 6-3-2011 1:25, Andreas Harder wrote:

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

This subject is also discussed on the LuaLaTeX mailing list.
http://tug.org/pipermail/lualatex-dev/2011-March/thread.html#1118

hm, i actually decided to limit the number of mailing lists to follow
so best provide a summary of conclusions instead of a link -)

anyhow, I wonder if we really need to keep supporting this

x \operator y

kind of syntax (at least that's what crossed my mind when i saw that
this atopwithdelims primitive was used in your example) .. maybe we
should simply define a few extra commands and relax these primitives

At the macro package level, I agree with this. The \over, \choose, \atop
etc macros can be made \undefined; We already have a high level
interface for them.

Do you also want to remove them from the engine? That will simplify the
\mathstyle macros, but then luatex will not be backward compatible with
tex. (I don't care about that, but others would).

no, we can keep them there as we want that compatibility (for plain etc)

aditya: shouldn't we merge the m-newmath code into the core?

Definitely.

ok, will do

Hans

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