Hi I want to know how i can draw 3D quadric surfaces defined by equations ...

I tried using 3d-plot and tikz but was unable to make it work :/
Hi I want to know how i can draw 3D quadric surfaces defined by equations ...

I tried using 3d-plot and tikz but was unable to make it work :/
pst-3dplotis worth having a look at. – Svend Tveskæg Feb 05 '14 at 19:49