1. The bordermatrix code is part of the core and you can remove it from cont-new.mkiv.

2. To use the \equalign command you have to enable the special meaning of & in math mode with \setupmathematics[ampersand=normal].

3. User the new mathalignment environment as replacement for \equalign which avoids special characters like &.

Wolfgang

Fabrice L

19. April 2018 um 22:05

Dear list,

Some months ago, Hans wrote to this list (see below) a macro to do matrix showing outside the brackets some informations (like we usually do for Markov chains), but adapted some plain tex code, which worked in MKII). I have used with success this code since then, but some weeks ago, the behavior of Context had changed (probably something on my part; I have updated the installation, but nothing changed).

The problem (I think) is linked to \unprotect \protect. When this code is put before the \starttext to the the cont-new-mkiv, the border matrix behave well, but a simple \eqalign like this:

\startformula

\eqalign{ & \lambda=5, \mu =5 \cr

& \mu=8 \cr }

\stopformula

do not works is I replace « \lambda » by « \lambda_2 » for example. I have no idea what’s is going on. here is a minimal example where Hans’s code is before the \starttext:

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