Hi, I stumbled upon this (see the attached file for the result): %%% Test file \setupbodyfont[10pt] \starttext \startTEXpage[offset=10pt] \type{\tbinom{n}{k}}: $\tbinom{n}{k}$, (does not look good, the vertical space between $n$ and $k$ is too big) \par \type{\binom{n}{k}}: $\binom{n}{k}$ (looks fine to me)\par \type{\dbinom{n}{k}}: $\dbinom{n}{k}$ (does not look good, too big parenthesis, even for displayed formulas).\par \stopTEXpage \stoptext %%% End of test file I think something should be changed to get the binomial coefficients to look better. In particular I am concerned about the rather big parenthesis in displaystyle (and not so much about the vertical space issue in \tbinom). /Mikael PS The result looked better if I used the lucida fonts, if that helps.