# [NTG-context] Bug in alignment with LMTX version 2022.01.15 17:32

Otared Kavian otared at gmail.com
Tue Jan 18 10:11:43 CET 2022

Hi Hans and Aditya,

Thanks for the clarification. Since for some documents I still use mkiv, I ended up using a definition which depends on whether one is using mkiv or lmtx, as in the example below. I wonder if there is a better solution.

Best regards: Otared
% begin bug-aligned-solved.tex
\doifmode{mkiv}{\definemathmatrix[alignedcases]
[align={right,left,left},
distance=3pt,
left={\left\{},
right={\right.},
style=\displaystyle]}

\doifmode{mkiv}{\definemathmatrix[matrix]
[align={right,left,left}]}

\doifmode{lmtx}{\definemathmatrix[alignedcases]
[align={1:right,2:left,3:left},
distance=3pt,
left={\left\{},
right={\right.},
style=\displaystyle]}

\doifmode{lmtx}{\definemathmatrix[matrix]
[align={1:right,2:left,3:left}]}

\starttext

\doifelsemode{lmtx}{We are using LMTX}{We are using mkiv}

\placeformula[eq:1]
\startformula
\startalignedcases
\NC  \partial_{t} u  \NC = \Delta u + \epsilon^{-2}f(u) \NC\qquad\text{in }\, \Omega\times (0,+\infty) \NR
\NC {\partial\phi(u) \over \partial{\bi n}} \NC = 0 \NC\qquad\text{on }\,  \partial \Omega\times (0,+\infty)\NR
\NC u(x,0) \NC = u_{0}(x)\NC\qquad\text{in }\, \Omega.\NR
\stopalignedcases
\stopformula

\startformula
\startmatrix
\NC ABC    \NC ABC    \NC ABC    \NR
\NC AAAAAA \NC AAAAAA \NC AAAAAA \NR
\stopmatrix
\stopformula
% end bug-aligned-solved.tex

> On 17 Jan 2022, at 23:53, Hans Hagen via ntg-context <ntg-context at ntg.nl> wrote:
>
> On 1/17/2022 11:35 PM, Aditya Mahajan via ntg-context wrote:
>> On Mon, 17 Jan 2022, Aditya Mahajan via ntg-context wrote:
>>> I confirm that this is a bug, which was not there in the version from mid Dec.
>> Not a bug, but new interface. You need:
>> \definemathmatrix[matrix]
>>                  [align={1:right,2:left,3:left}]
>> It is also possible to say: align={all:middle}. Combination of the two don't seem to work.
> basically we increment each element but a number sets the column so one can go to a specific column; empty (whatever non number will start again at zero)
>
> Hans
>
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