On 12/21/2025 9:59 AM, Florent Michel wrote:
Hi,
I have noticed what looks like an extra space after \VL in a math
matrix, For instance, when compiling this example from the wiki with
LMTX 2025.12.20 23:15, there is an extra space in the last column of
each matrix:
________________________________________________
\definemathmatrix[mymatrix]
[left={\left\lparent\thinspace},
right={\thinspace\right\rparent}]
\starttext
Here is $3 \times 3$ matrix with a column added to it
\startformula
\startmymatrix
\NC 11 \NC 12 \NC 13 \VL 0 \NR
\NC 21 \NC 22 \NC 23 \VL 1 \NR
\NC 31 \NC 32 \NC 33 \VL 2 \NR
\stopmymatrix
\stopformula
Here is a block matrix:
\startformula
\startmymatrix
\NC A \VL B \NR
\HL
\NC C \VL D \NR
\stopmymatrix
\stopformula
\stoptext
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I had a quick look at the code and it seems this can be resolved by
replacing line 1944 in math-ali.mkxl:
- \kern.5\d_math_eqalign_distance
+ \kern0\d_math_eqalign_distance
(But I am definitely not familiar enough with the code to know if this
change may have negative side effects.)
Is this extra space intended behaviour? If not, is the change above
‘correct’ (in the sense that it will likely not break anything) or
is there a better way?
For now just comment that line. Btw, you can do this:
\definemathmatrix
[mymatrix]
[fences=parenthesis]
which then uses spacing as set up for classes.
Hans
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