Definition:Parabola/Axis
< Definition:Parabola(Redirected from Definition:Axis of Parabola)
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Definition
Consider a parabola $P$.
The axis of $P$ is the straight line passing through the focus of $P$ perpendicular to the directrix $D$.
Also see
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): parabola
- 2008: David Nelson: The Penguin Dictionary of Mathematics (4th ed.) ... (previous) ... (next): parabola
- 2014: Christopher Clapham and James Nicholson: The Concise Oxford Dictionary of Mathematics (5th ed.) ... (previous) ... (next): axis (of a parabola)
- 2014: Christopher Clapham and James Nicholson: The Concise Oxford Dictionary of Mathematics (5th ed.) ... (previous) ... (next): parabola