Hi, I am preparing an e-journal for astro and I have many articles with lots of equations. Unfortunately, authors are using LaTeX maths and this is giving me trouble. I have read and followed the steps of http://wiki.contextgarden.net/LaTeX_Math_in_ConTeXt and http://wiki.contextgarden.net/Math_with_newmat and it has helped me a lot but there's a snag I run all the time in: array Typically, the equation giving troubles is of the kind: \begin{equation} \begin{array}{rl} h & \sim \mu M^{2/3}f^{2/3}/r\\ & \sim M_{ch}^{5/3}f^{2/3}/r\\ \end{array} \end{equation} when I try to compile, I get ! Misplaced alignment tab character &. l.484 h& \sim \mu M^{2/3}f^{2/3}/r\\ Of course, when I use \startformula\eqalign{ h & \sim \mu M^{2/3}f^{2/3}/r \cr & \sim M_{ch}^{5/3}f^{2/3}/r \cr }\stopformula everything runs smoothly but I cannot convert all equations containing a {array}{rl} or similar, because I would never end... I guess that writing a script to convert them in eqlign would be feasible, but it's a very... precarious way... I would prefer to fix the problem from ConTeXt itself... how?? thanks, Pau