[NTG-context] Bug when mathmatrix is used inside mathalign

Hans Hagen j.hagen at xs4all.nl
Wed Mar 27 18:13:14 CET 2019


On 3/27/2019 4:56 PM, Aditya Mahajan wrote:
> Hi,
> 
> It was reported on TeX.SE[1] that there is a bug when math matrix is used
> inside a math align:
> 
> \starttext
> \startformula
>      \startalign[n=2,align={right,left}]
>          \NC x
>          \NC = a ~ long ~ sequence ~ of ~ terms
>          \NR
>          \NC y
>          \NC = ok ~ left
>          \NR
>          \NC \startmatrix[left={\left\lbrack},right={\right\rbrack}]
>                  \NC x \NR
>                  \NC y \NR
>              \stopmatrix
>          \NC = why ~ right?
>          \NR
>          \NC y
>          \NC = ok ~ left ~ again
>          \NR
>      \stopalign
> \stopformula
> \stoptext
> 
> gives
> 
> https://i.stack.imgur.com/ZTAp3.png
> 
> It appears that \startmatrix globally resets \NC. I haven't looked into
> the code yet to see why this is happening.
you can play with


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