Definition:Pole of Polar
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Definition
Circle
Let $\CC$ be a circle embedded in the plane.
Let $P$ be an arbitrary point in the plane.
Let $\LL$ be the polar of $P$ with respect to $\CC$.
Then $P$ is known as the pole of $\LL$.
Ellipse
Let $\EE$ be an ellipse embedded in the plane.
Let $P$ be an arbitrary point in the plane.
Let $\LL$ be the polar of $P$ with respect to $\EE$.
Then $P$ is known as the pole of $\LL$.
Sources
- 2021: Richard Earl and James Nicholson: The Concise Oxford Dictionary of Mathematics (6th ed.) ... (previous) ... (next): pole (of a line)