Den 18 aug. 2016 9:09 em skrev "Aditya Mahajan" :

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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___________________________________________________________________________________ Thank you very much for the clear explanation and neat work-around, Aditya. /Mikael