Definition:Ellipse/Minor Axis/Semi-Minor Axis

From ProofWiki
Jump to navigation Jump to search

Definition

EllipseParts.png

Consider an ellipse $K$.


A semi-minor axis of $K$ is either half of the minor axis of $K$ from its midpoint to its endpoint.


In the above diagram, $O C_1$ and $O C_2$ are the semi-minor axes of $K$.


Also known as

Some sources do not hyphenate: semiminor axis.


Also see

  • Results about the semi-minor axis of an ellipse can be found here.


Linguistic Note

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

Compare basis.


Sources