Hi Henri, I think your code has a problem: the first one is that the definition of \Up and \Down is not understood when I compile your example, and then you introduce an empty mathmatrix which creates a difficulty too. Once I remove the definitions of \Up and \Dn the code is typeset (ConTeXt ver: 2017.09.05 15:10 MKIV beta). Can you please give a more detailed example where you see the problem?
Best regards: OK > On 8 Sep 2017, at 06:51, Henri <henrime...@gmail.com> wrote: > > \define\Up{\mathord\Uparrow} > \define\Dn{\mathord\Downarrow} > > \starttext > > \placeformula > \startformula > \startmathalignment > \NC \psi_{+,\Up} ... > \startmathmatrix > \stopmathmatrix > \NR > \NC \psi_{+,\Dn} ... > \NR > \stopmathalignment > \stopformula > > \stoptext ___________________________________________________________________________________ If your question is of interest to others as well, please add an entry to the Wiki! maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context webpage : http://www.pragma-ade.nl / http://context.aanhet.net archive : https://bitbucket.org/phg/context-mirror/commits/ wiki : http://contextgarden.net ___________________________________________________________________________________