English: An ellipsoid drawn with gnuplot. This picture has been done with the direct output of the SVG driver. Note that some of the elliptical cross-sections are bumpy; this indicates that they are spline curves that only approximate ellipses.
Source code (click to expand)
setparametricsplotcos(u)*cos(v),2*sin(u)*cos(v),3*sin(v)setcontourbasesetgridxticsyticsztics# unset key # set term svg # set output "Gnuplot_ellipsoid.svg"replot