# [NTG-context] Bug in math alignment

Otared Kavian otared at gmail.com
Thu Nov 3 09:31:45 CET 2022

Hi Mikael,

Indeed with your hint the issue disappears.
I’ll change my definition…

Best regards: Otared

> On 2 Nov 2022, at 21:44, Mikael Sundqvist via ntg-context <ntg-context at ntg.nl> wrote:
> […]
> I think in this case it is better to use a mathsimplealign instead of a matrix.
>
> \definemathsimplealign[pdeproblem][
> left={\startmathfenced[cases]},
> right=\stopmathfenced,
> align={1:right,2:left,3:left},
> strut=yes,
> ]
>
> \definemathsimplealign[collected][
> left={\startmathfenced[sesac]},
> right=\stopmathfenced,
> align={1:right,2:left,3:left},
> strut=yes,
> ]
>
> \starttext
>
> \placeformula
> \startformula
> \startpdeproblem
> \NC - \Delta u \NC = 0 \NC \qquad\text{in } \Omega \NR
> \NC \frac{\partial u}{\partial {\bi n}} \NC = V u + \phi \NC
> \stoppdeproblem
> \stopformula
>
> \placeformula
> \startformula
> \startcollected
> \NC - \Delta u \NC = 0 \NC \qquad\text{in } \Omega \NR
> \NC \frac{\partial u}{\partial {\bi n}} \NC = V u + \phi \NC
> \stopcollected
> \stopformula
>
> \stoptext
>
> Best, Mikael
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Otared Kavian
e-mail: otared at gmail.com
Phone: +33 6 88 26 70 95