Dear context list, using the nabla symbol ∇ in formulas, I wondered why it looks italic and not upright as for example in [1]. I attach an example.
Thanks, Xenia [1] https://en.wikipedia.org/wiki/Nabla_symbol
nabla.pdf
Description: Adobe PDF document
\starttext \startformula \nabla \phi = â Ï = 0 \stopformula \stoptext
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