Hi!

look at the output of this (attached)

\definemathcommand [D] [nolop] {\mfunction{D}}
\starttext
Compare $\D f$ with $\mfunction{D}f$.
\stoptext

In the \D, the D is lowered a bit. I think it should not be, or else I
misuse something. If so, how should I define my own operator (I found
this example on the wiki).

/Mikael