Herbert Voss wrote:
> put the cursor right of the sum symbol, enter _ and then
>
> {above \atop below}
>
> or for more than two limits
>
> {a\atop b\atop c ...}
sorry, forgot to say that with amsmath.sty
\substack{...\\...\\...}
does the same.
Herbert
--
http://www.educat.hu-berlin.de/~voss/lyx/
