<t>sam, what document class are you using? I just tried \documentclass{article}\begin{document} \begin{equation} \lim_{n \to \infty} 1/n =0 \end{equation}\end{document}and this gave me the lim with {n \to infty} beneath it, not on the side. Bear in mind, though, if you type $\lim_{n \to \infty} 1/n ...