A one-dimensional curve in 3-D is produced by **plot3**, which is
completely analogous to **plot**; **plot3(x, y, z)** plots the
curve, **plot3(x, y, z, 'b:')** makes it a blue dotted line, etc.
As with **plot**, including more than one triplet (or quadruplet) of
values in a single call overlays the plots. There exists **zlabel**
exactly like **xlabel** and **ylabel**, and **axis** actually
has six arguments, the last two being for z.

Sat Mar 21 21:42:28 EST 1998