> Question: Do you have any recommendation / suggestion to prepare talks > to be shown in a projector including mathematical equations, plots > and, eventually, movies (I can live without this last point)?
HTML is probably the most portable solution for your problem, and movies would work fine too (using VLC's Mozilla plug-in). Graphics display quickly and Firefox has MathML for displaying equations, but special fonts are required, and I'm unsure if anyone has ever tried to install them on OpenBSD (I certainly haven't). An example of MathML used in HTML is at http://pear.math.pitt.edu/mathzilla/Examples/markupOftheWeek.mhtml Personally, I use Mathematica on my OpenBSD laptop--it has a nice presentation mode and renders equations beautifully. Of course, it's proprietary software that costs money, so it's not for everyone.
