Am 03.12.2011 um 19:56 schrieb Paul Menzel:
Dear ConTeXt folks,
using the following minimal example
\starttext Using \type{\choose} in text $n \choose \frac{n}2$.
\startformula n \choose \frac{n}2 \stopformula
\CONTEXT\ \contextmark\ \contextversion\ with \texenginename\ \texengineversion \stoptext
the parentheses of the binomial in the text or too short. I guess this is because the parentheses are not scaled when inlined and that this is also a TeX limitation and therefore expected?
Instead if \choose you can use \binom which is the recommended way in context. The \dbinom command sets the content in display style while \tbinom use textstyle. \starttext Using \tex{binom} in text $\binom{n}{\frac{n}{2}}$. Using \tex{dbinom} in text $\dbinom{n}{\frac{n}{2}}$. Using \tex{tbinom} in text $\tbinom{n}{\frac{n}{2}}$. \startformula \binom{n}{\frac{n}{2}} \stopformula \stoptext Wolfgang