Definition:Auxiliary Circle/Hyperbola
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Definition
Let $H$ be a hyperbola.
The auxiliary circle of $H$ is the eccentric circle whose diameter coincides with the major axis of $H$:
In the above diagram, the auxiliary circle of $H$ is the circle $C$.
Also see
- Results about auxiliary circles 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