Parametric plots



Good *ing,

     This is a suggestion for William (and/or anyone interested in
developing it... maybe I should try to do it myself, but ;-)
better if someone with more experience tries to).

       I think Maxima should have an easy method for plotting para-
metric curves and surfaces..., like

       parametricplot2d([3*cosh(t),3*sinh(t)],[t,-2,2]);

to plot a ---guess it--- hyperbola, and

       parametricplot3d([cos(theta)*cosh(t),
       sin(theta)*sinh(t),t],[t,-3,3],
       [theta,-%PI,%PI]);

for a catenoid (?).

I know it could be done using the gnuplot interface, etc... but I 
think a straightforward command for omplot (great!) would be best.

Thanks in advance, 

	  Pedro.



-- 
Pedro Fortuny Ayuso --------> http://www.geocities.com/pedro_fortuny
Dpt. Matematicas, Univ. Autonoma de Madrid ------> http://www.uam.es
Campus Cantoblanco, 28049 Madrid. SPAIN. -----> tel. (34) 91 3974911