Definition:Eccentric Circle of Central Conic/Hyperbola
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Definition
Let $\KK$ be a hyperbola whose center is at $O$.
The eccentric circles of $\KK$ are the two circles whose center is at $O$ and whose diameter coincides with either the major axis of $\KK$ or the minor axis of $\KK$.
Also see
- Results about eccentric circles of central conics can be found here.
Sources
- 1998: David Nelson: The Penguin Dictionary of Mathematics (2nd ed.) ... (previous) ... (next): hyperbola
- 2008: David Nelson: The Penguin Dictionary of Mathematics (4th ed.) ... (previous) ... (next): hyperbola