[NTG-context] Bug in lmtx in display mathmode
Hans Hagen
j.hagen at xs4all.nl
Mon Aug 19 08:53:30 CEST 2019
On 8/19/2019 12:20 AM, Otared Kavian wrote:
> Hi Hans,
>
> I have a long document which typesets correctly with mkiv, but I get a (cryptic for me…) fatal error message when I try to typeset it in lmtx:
>
> ! error: (nodes): trying to delete an attribute reference of a non attribute list node 4476mtx-context | fatal error: return code: 256
>
> I could finally find the origin of the error, which is exposed in the following example: if you comment out the part from \startformula ... \stopformula, the file typesets correctly.
> But with this part, one gets the above error message, the culprit being \liminfbar which is defined in the first line. Note that \liminfbar is accepted when it is inline math.
>
> Best regards: OK
>
> %%% begin bug-math-lmtx.tex
>
> \definemathcommand[liminfbar][limop] {\underline{\mfunctionlabeltext{lim}}}
>
> \starttext
> If $(u_{n})_{n}$ is a sequence of real numbers, we define its {\it limit inferior}, denoted $\liminfbar$ by setting:
> \startformula
> a_{n} := \inf\{u_{k} \; ; \; k \geq n \},
> \qquad\text{and then}\quad
> \liminfbar_{n\to\infty} u_{n} := \sup_{n \geq 1} a_{n}.
> \stopformula
>
> \stoptext
>
> %%% end bug-math-lmtx.tex
also in yesterdays beta?
Hans
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