> The 3d examples are really good!
I agree.
I just started playing with it, but the new setup seems very nice.
> It seems not all of the mentioned examples run equally well on maxima-gcl.
> Maxima-gcl complains about zero-divisor in examp. 3,4
The Moebius band and the Klein bottle?
I didn't get that problem; I'm using the latest cvs Maxima (of
course) and the latest 2.6.1 gcl (not the cvs, though).
> I was not able to produce the last picture. The gnuplot version is 3.8k1-1
> I got only the empty box.
The torus?
I'm using gnuplot 3.8j and it worked fine.
Jay