Hi all, I'm trying out ConTeXt Math. The very most of the samples of the TeXbook work very nice. I only found one problem, \atopwithdelims seems not to work o.k. That results in not adapting delimiters for \choose, \brack and \brace. My file: \usetypescriptfile[type-lucida] \starttext ${n\choose k} {n\brack k} {n\brace k}$ \startformula {n\choose k} {n\brack k} {n\brace k} \stopformula \blank[5*big] \usetypescript[cambria] \setupbodyfont[cambria] ${n\choose k} {n\brack k} {n\brace k}$ \startformula {n\choose k} {n\brack k} {n\brace k} \stopformula \blank[5*big] \usetypescript[lucida] \setupbodyfont[lucida] ${n\choose k} {n\brack k} {n\brace k}$ \startformula {n\choose k} {n\brack k} {n\brace k} \stopformula \stoptext Luatex: This is LuaTeX, Version beta-0.41.0-2009062123 (Web2C 2009) ConTeXt: 2009.06.14 21:01 MKIV fmt: 2009.6.26 int: english/english Greetings Lutz