I have encountered a problem when using \fac, \eqalign and \usemodule[newmat] at the same time. I like the newmat module since it gives me the \QED command, but when using \frac inside \eqalign I get an error I cannot understand. \usemodule[newmat] % This works fine. \starttext \startformula \frac12=\frac24 \stopformula % Uncomment to get error. %\startformula %\eqalign{\frac12={}&\frac24\cr} %\stopformula % This works fine. \startformula \eqalign{{1\over2}={}&{2\over4}\cr} \stopformula \stoptext The log file is attached. -- Emil Hedevang Lohse http://home.imf.au.dk/emil/ Alle spørgsmål er lige dumme. Og spørgsmålet "Kan ænder flyve?" er ikke dumt.