Hi Xan, I think Wolfgang meant that one should something like the following construction: % define here a new math-aligned structure: \definemathmatrix[alignedcases] [align={right,left,left}, distance=3pt, left={\left\{}, right={\right.}, style=\displaystyle] \starttext \startformula \startalignedcases \NC x - 2y + 2z \NC = 1 \NR \NC 2 x + y - z \NC = 2 \NR \NC 4 x - 3y + 6z \NC = 7 \NR \stopalignedcases \stopformula \stoptext Best regards: OK On 07 Oct 2014, at 12:22, Xan wrote:

Mm... I thought I could use mathalign instead.

Thanks,

On Tue, 7 Oct 2014 11:23:13 +0200 Wolfgang Schuster ha escrit:

...

Am 07.10.2014 um 10:59 schrieb Xan :

...

Hi,

I try to do that

\startformula \startalign[left={\left(\,},right={\,\right.}] \NC x - 2y + 2z \NC = 1 \NR \NC 2 x + y - z \NC = 2 \NR \NC 4 x - 3y + 6z \NC = 7 \NR \stopalign \stopformula

but it does not work. Can anyone help me?

You have to use the \startmatrix environment.

- http://wiki.contextgarden.net/%5Cstartcases - http://dl.contextgarden.net/myway/mathalign.pdf

Wolfgang

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