Hi Mikael, Indeed your observation is correct, but using \over instead of \frac yields the correct behavior. Please try the following sample: %%% begin derivatives-prime-4.tex \setupbodyfont[lucidaot] \starttext Compare the position of the prime sign in $f'/g$ in these two expressions: the first one using \type{{... \over ...}} \startformula \left({f \over g}\right)' = {f' \over g} - {f \over g^2}g' \stopformula (which yields a correct position of the prime for $f'$ in $f'/g$), and the second using \type{\frac{...}{...}} \startformula \left(\frac{f}{g} \right)' = \frac{f'}{g} - \frac{f}{g^2} g' \stopformula which yields a prime sign for $f'$ a little bit lower. \stoptext %%% end derivatives-prime-4.tex
On 4 Jun 2017, at 19:42, Mikael P. Sundqvist
wrote:
[…]
I hate to bring this up again, but look at the attached output of
%%% %\setupbodyfont[lucidaot]
\starttext \startformula f'(0)=2\frac{f'(0)}{2} \stopformula \stoptext %%%
The prime in the fraction is in my opinion too low (it is more clear in the example with lucida).
/Mikael
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