By: Jamie Weiss #66
- A three-dimensional figure made of ellipses or circles.
- An ellipsoid has three independent axes, and is usually specified by the lengths a,b,c of the three semi-axes.
- If an ellipsoid is made by rotating an ellipse on one of its axes, then two axis of the ellipsoid are the same, and it is called an ellipsoid of revolution, or spheroid.
- If the lengths of all three of its axes are the same, it is a sphere.