On Mon, Jan 26, 2009 at 9:32 PM, Wolfgang Schuster <schuster.wolfgang@googlemail.com> wrote:

Am 26.01.2009 um 20:12 schrieb Alan BRASLAU:

The syntax of \dimexpr and \numexpr is subtle and mysterious.
For example,
\framed[width=.61\textwidth,height=\dimexpr.61\textwidth*1486/1200\relax]{}
works, but I never understood the limitations.
How about an entry on the wiki?

\dimexpr and \numexpr are explaines in the e-tex manual.

The only important thing for \dimexpr is to write the dimen value
as first value after the \dimexpr command and then the numeric values.

Wolfgang