Dear list, the following are probably bugs in the new math engine as of yesterday's beta (2009.05.14 16:44): 1. The symbols for number sets in Cambria Math aren't taken from the double-struck variant. --- \usetypescript[cambria] \setupbodyfont[cambria] \starttext \math{\naturalnumbers}, \math{\integers}, \math{\rationals}, \math{\reals}, \math{\complexes}, \math{\primes} \stoptext --- 2. Vector arrows look somewhat strange in Cambria Math ... is this perhaps due to the font itself? --- \usetypescript[cambria] \setupbodyfont[cambria] \starttext The arrows should neither extend over the right bracket nor into the primes: \startformula{} [\alpha(\vec{k})\alpha(\vec{k}'),\alpha^\dagger(\vec{k}'')] \stopformula \stoptext --- 3. The command \implies is undefined (see previous posting). --- \starttext \startformula A\implies B \stopformula \stoptext --- Oliver