[NTG-context] Re: How hard should something get \smash-ed ?

On 1/13/2025 7:44 AM, Mikael Sundqvist wrote:

Hi,

On Mon, Jan 13, 2025 at 1:43 AM Jim mailto:zlists%2Bcontext@jdvb.ca> wrote:

Hi,

In plain TeX,

$$\smash{\sum_0^n}$$

is set in \displaystyle, just like

$$\smash{\sum_0^n}$$

However, ConTeXt

\starttext $$\smash{\sum^0_n}$$ \stoptext

outputs the above in \textstyle, whereas

\starttext $$\sum^0_n$$ \stoptext

is in (of course(?)) \displaystyle.

Is this difference intentional?

Thanks for reporting. I don't think it is intentional. (Can you show your real world example where \smash is needed? It seems to not really be used in any macro in ConTeXt.)

/Mikael

PS $$ is not meant to be used in ConTeXt. If you want inline math in display style, use \dm {}, and if you want displayed formulas in display style, use \startformula \stopformula.

% put this in cont-new.mkxl \unprotect \protected\def\syst_boxes_math_set_nextbox#1% {\setbox\nextbox\hbox\expandafter\bgroup \expandafter\Ustartmathmode\the\mathstyle \mathsurround\zeropoint{#1}% \Ustopmathmode \egroup} \protect to get this right \starttext \ruledhbox{\smash{$\sum^0_n$}} \blank \ruledhbox{\smash{$\displaystyle\sum^0_n$}} \blank \ruledhbox{$\smash{\sum^0_n}$} \blank \ruledhbox{$\displaystyle\smash{\sum^0_n}$} \blank \stoptext Hans ----------------------------------------------------------------- Hans Hagen | PRAGMA ADE Ridderstraat 27 | 8061 GH Hasselt | The Netherlands tel: 038 477 53 69 | www.pragma-ade.nl | www.pragma-pod.nl -----------------------------------------------------------------