Definition:Ellipse/Minor Axis/Semi-Minor Axis
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Definition
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
- 1998: David Nelson: The Penguin Dictionary of Mathematics (2nd ed.) ... (previous) ... (next): ellipse
- 2008: David Nelson: The Penguin Dictionary of Mathematics (4th ed.) ... (previous) ... (next): ellipse
- Weisstein, Eric W. "Ellipse." From MathWorld--A Wolfram Web Resource. https://mathworld.wolfram.com/Ellipse.html