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I want to set partial derivations like \frac{\partial}{\partial x}. This is issue is discussed several times here. Packages like esdiff or commath or suggested. However one problem with all those solutions is that the \partial is not set upright. Usually a recommendation is to use kpfonts or other fonts. Assume I do not want to change my font. Is there some LaTeX command to set the \partial upright or is this always a font issue? I have tried using \mathrm, but this doesn't work.

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up vote 11 down vote accepted

or if you do not want to load the kpfonts:

\newif\ifkp@upRm% is used in the .fd-file of jkp


\[ \frac{\partialup f}{\partialup x} \]

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Another nice approach could be rotating and scaling the \partial symbol by this one-liner:


It uses the normal partial symbol, squeezes it a bit horizontally, rotates it around the top for 20 deg and minimizes the distance to the following symbol.

Now you can use \uppartial in your math environment and get nice results like this:


For Germans: DIN 1338 regulates which symbols are written in italics and which ones upright (see de:Wikipedia)

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