Thanks Herbert, works great. --- On Wed, 12/1/11, Herbert Voss <Herbert.Voss at FU-Berlin.DE> wrote: > \documentclass{article} > \usepackage[T1]{fontenc} > \usepackage{lmodern} > \mathversion{bold} > \begin{document} > > $y=f(x)$ > \[\int_1^2\frac{1}{x^2}dx=1\] > > \mathversion{normal} > $y=f(x)$ > > \end{document} > > Herbert