[NTG-context] Feature Request: mathmatrix enhancement

[Taco Hoekwater]

Hi,

See attachment. The final value of the "align=" list is repeated
for any leftover columns, and align=middle is default, of course.

Cheers, taco

PS The alignment preamble uses \hskip instead of \tabskip, because
that was the only solution I could find that does all intercolumn
spacing correct while still allowing endlessly repeating columns.

Aditya Mahajan wrote:
> Hi,
> 
> Is it possible to have allow math matrix column alignments to be 
> configurable, on the lines of align={left,left} of \startalign.
> I want to be albe to say
> 
> \startformula
>   \startmatrix[align={right,left}]
>    \NC x \NC = a + d \NR
>    \NC y \NC = d     \NR
>   \stopmatrix
> \stopformula
> 
> to give me
>   x = a + d
>   y = d
> 
> This is a contrived example. The actual equation that I want to type 
> is
> 
> \startformula
>    \text{Let }{\cal R} = \bigcup_{P_{X_1},P_{X_2}} \left\{
>    (R_1, R_2) :
>    \startmatrix[distance=0.1em]
>      \NC \hfill R_1       \NC < I(X_1 ; Y \mid X_2) \hfill \NR
>      \NC \hfill R_2       \NC < I(X_2 ; Y \mid X_1) \hfill \NR
>      \NC \hfill R_1 + R_2 \NC < I(X_1,X_2 ; Y) \hfill      \NR
>    \stopmatrix\right\}
> \stopformula
> 
> All these manual hfills look ugly.
> 
> Is matrix the wrong way to go about this? Should we rather have a 
> aligned environment like amsmath? Or is there a simple alternative 
> that I have overlooked?
> 
> 
> Thanks
> Aditya
> 
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