Maxima Graphic object
parametric_surface (xfun,yfun,zfun,par1,par1min,par1max,par2,par2min,par2max)
Draws parametric surfaces in 3D.
3D
parametric_surface (xfun,yfun,zfun,par1,par1min,par1max,par2,par2min,par2max)
plots parametric surface [xfun,yfun,zfun], with parameter par1
taking values from par1min to par1max and parameter par2
taking values from par2min to par2max.
This object is affected by the following graphic options: xu_grid,
yv_grid, line_type, key and color.
Example: