Definition:Mean Axis of Ellipsoid

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Definition

Let $\EE$ be an ellipsoid.

The mean axis of $\EE$ is the diameter of $\EE$ which is perpendicular to both the major axis of $\EE$ and the minor axis of $\EE$.

Also see

Results about the mean axis of an ellipsoid can be found here.

Linguistic Note

The plural of axis is axes, which is pronounced ax-eez not ax-iz.

Compare basis.

Sources

1998: David Nelson: The Penguin Dictionary of Mathematics (2nd ed.) ... (previous) ... (next): ellipsoid
1998: David Nelson: The Penguin Dictionary of Mathematics (2nd ed.) ... (previous) ... (next): mean axis
2008: David Nelson: The Penguin Dictionary of Mathematics (4th ed.) ... (previous) ... (next): ellipsoid
2008: David Nelson: The Penguin Dictionary of Mathematics (4th ed.) ... (previous) ... (next): mean axis

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