On Wed, 17 Aug 2016, Mikael P. Sundqvist wrote:
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).
This is a "feature" of \mathop.
\definemathcommand [D] [nolop] {\mfunction{D}}
\starttext
Compare $\D f$ with $\mfunction{D}f$ and $\mathop{\mfunction{D}}f$.
\stoptext
If the argument of \mathop is a single character, \mathop centers the
glyph on the math axis (This is useful for \sum, \int, \prod, etc.). To
circumvent this, use:
\definemathcommand [D] [nolop] {\mfunction{D}\kern\zeropoint}
Aditya
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