Quoting w.neimeijer@hccnet.nl:
Hi,
It seems that \definemathmatrix is ignoring the align options. I defined a new math matrix \startmycases and compared the alignment of the columns with \startalign. In the \startmycases the alignment has no effect but it should work according to mathalign.pdf document.
I am using ConTeXt ver: 2007.04.17 12:51 MKII fmt: 2007.7.10 int: english/english
Your example works correctly on my machine and live.contextgarden.net (both using ver:2007.07.25). I do not think that anything related to matrix changed between April and now. Aditya
\definemathmatrix[mycases][left={\left\{\,},right={\,\right.}] \starttext Ignoring the alignment ?? \startformula \startmycases[align={left, middle, middle, middle}] \NC aaa\NC b\NC cccc\NC d\NR \NC a\NC bbb\NC c\NC ddd\NR \stopmycases \stopformula Alignment obeyed. \startformula \startalign[n=4,align={left, middle, middle, middle}] \NC aaa\NC b\NC cccc\NC d\NR \NC a\NC bbb\NC c\NC ddd\NR \stopalign \stopformula \stoptext