At 15:29 -0500 16/11/04, Matthias Weber wrote:
>Hello,
>
>I'd like to typeset
>[\partial,B]=0

Hi Matthias,

Despite Hans' suggestion of putting \relax in front of [, in my 
installation of ConTeXt this works well:
\starttext
\startformula
0 =[\partial,B] =0.
\stopformula


Make sure there is no funny invisible characters in front of the 
square brackets.

Best regards: OK