On Wed, Mar 2, 2022 at 2:33 AM śrīrāma via ntg-context wrote:

Hi,

While setting some rather large set of equations in a document I could not achieve proper alignment of columns in mathalignment. Below is a demonstrative example:

\starttext \placeformula \startformula \startmathalignment[n=7,align={right,left,right,left,right,left,right}] \NC x_1 \NC + \NC x_2 \NC + \NC 6x_3 \NC = \NC 170, \NR \NC 3x_1 \NC - \NC 110x_2 \NC - \NC x_3 \NC = \NC 4, \NR \NC 14x_1 \NC + \NC 13x_2 \NC + \NC 10x_3 \NC = \NC 25. \NR \stopmathalignment \stopformula

\startformula \startmathalignment[align={left,right}] \NC \sin^2 x + \cos^2 x \NC = 1 \NR \NC e^{iπ} \NC = -1 \NR \stopmathalignment \stopformula \stoptext

The first example is from the wiki and the second one is just something I wrote as an example. Compiling the above, I see that the equations are not aligned as requested. There was an earlier discussion on this here: https://www.mail-archive.com/ntg-context@ntg.nl/msg97115.html

However, I have: mtx-context | current version: 2022.01.21 20:13 where I have verified that the fix therein is present (in math-ali.mkxl).

Have I gone wrong somewhere ?

Thanks, Sreeram

Hi! No, you have not gone wrong, but syntax has changed a bit. This works now: \starttext \placeformula \startformula \startmathalignment[n=7,align={1:right,2:left,3:right,4:left,5:right,6:left,7:right}] \NC x_1 \NC + \NC x_2 \NC + \NC 6x_3 \NC = \NC 170, \NR \NC 3x_1 \NC - \NC 110x_2 \NC - \NC x_3 \NC = \NC 4, \NR \NC 14x_1 \NC + \NC 13x_2 \NC + \NC 10x_3 \NC = \NC 25. \NR \stopmathalignment \stopformula \stoptext This was done while changing alignments in matrices (and thus also in alignments, it seems). You can now do align=all:right for example to get all columns in a matrix right-aligned. Hans: since people like to use right/left/right/left/ when typesetting systems of equations... maybe one could add odd:right and even:left as well? /Mikael