I just found that \choose has been replaced with \binom (binomial coefficient):
\starttext \meaning\choose \meaning\binom $\binom{n}{k}$ \stoptext Sorry for complaining… :-) > On 9 Jul 2022, at 00:34, Otared Kavian <ota...@gmail.com> wrote: > > > >> On 6 Jul 2022, at 22:10, Hans Hagen via ntg-context <ntg-context@ntg.nl> >> wrote: >> >> Hi, >> >> We're pleased to announce the first official release of the new math code. >> We're talking of: >> >> […] > > Dear Hans and Mikael، > > Thank you very much for the new upload and the new stuff for tyepsetting > maths. I have been playing around with the features presented in the example > file sent by Mikael, and I must say, among other things you have implemented, > the constructs \bearkhere and \skiphere, and friends, are absolutely great, > brilliant and so simple! I wonder why such a simple and elegant solution was > not around before… > > As a plain TeX traditionalist I am a little bit sad to let the \over > construct be ditched, but my sadness did not last too long. > > It seems that the \choose construct has been ditched but I did not guess what > has replaced it (I guess the reason is the same for ditching \over, since the > construct used to be ${n \choose k}$ and this is not what one wants to have > in a macro). > > Best regards: Otared ___________________________________________________________________________________ If your question is of interest to others as well, please add an entry to the Wiki! maillist : ntg-context@ntg.nl / https://www.ntg.nl/mailman/listinfo/ntg-context webpage : https://www.pragma-ade.nl / http://context.aanhet.net archive : https://bitbucket.org/phg/context-mirror/commits/ wiki : https://contextgarden.net ___________________________________________________________________________________