hi Vijay, I think you are missing the . (dot) after the \left as required. Do \left. your_eqn \right\} (notice the dot character after \left) Hope this helps, ~ Arindam C On Sat, 1 Mar 2003, Vijay Kumar wrote: > `\left .... \right\}' > > does not work when I try to make the equation in more than two lines.