\nolimits no effect in LMTX

\nolimits no effect in LMTX

[Stefan Haller via ntg-context]

Hello,

The \nolimits macro has no effect in LMTX, but works fine in the context
mkiv version of my texlive installation.

Small example:

\starttext
\startformula
  \sum\nolimits_{i=1}^{n} a_i
\stopformula
\stoptext

In LMTX the sub- and superscripts are incorrectly placed below and above
the sum operator. Can someone have a look what's going wrong? Thanks in
advance!

Best regards,
Stefan Haller
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Re: \nolimits no effect in LMTX

[Hans Hagen via ntg-context]

On 8/16/2022 3:38 PM, Stefan Haller via ntg-context wrote:
> Hello,
> 
> The \nolimits macro has no effect in LMTX, but works fine in the context
> mkiv version of my texlive installation.
> 
> Small example:
> 
> \starttext
> \startformula
>    \sum\nolimits_{i=1}^{n} a_i
> \stopformula
> \stoptext
> 
> In LMTX the sub- and superscripts are incorrectly placed below and above
> the sum operator. Can someone have a look what's going wrong? Thanks in
> advance!	
\starttext

\definemathoperator[nosum][sum][method=nolimits]

\startformula
   \sum [method=nolimits]_{i=1}^{n} a_i +
   \sum _{i=1}^{n} a_i +
   \sum [bottom={n},top={i=1},topcolor=red] a_i +
   \nosum _{i=1}^{n} a_i
   \nosum[method=auto] _{i=1}^{n} a_i
\stopformula

\stoptext

the \nolimits command is actually a modifier that 'looks back'and 
patches a previous math atom an dthat doesn't work well with the new 
more flexible implementation of \sum as math operator

Hans

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___________________________________________________________________________________

Re: \nolimits no effect in LMTX

[Stefan Haller via ntg-context]

On Tue, Aug 16, 2022 at 05:47:06PM +0200, Hans Hagen via ntg-context wrote:
> \definemathoperator[nosum][sum][method=nolimits]
> 
> \startformula
>   \sum [method=nolimits]_{i=1}^{n} a_i +
>   \sum _{i=1}^{n} a_i +
>   \sum [bottom={n},top={i=1},topcolor=red] a_i +
>   \nosum _{i=1}^{n} a_i
>   \nosum[method=auto] _{i=1}^{n} a_i
> \stopformula
> 
> \stoptext

Thanks for the response and also for your efforts creating and
maintaining ConTeXt! The proposed alternative work well. This also
solves the confusion due to never being able to to remember that I have to
put the \limits / \nolimits directive *after* the symbol I want to
modify.

If somebody else stumbled across this: The code for the *mathoperators
macros sits in `mkxl/math-lop.mkxl`.

Best regards,
Stefan
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___________________________________________________________________________________