Definition:Hyperbola/Center
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Parts of Hyperbola
Consider a hyperbola $K$ whose foci are $F_1$ and $F_2$.
The center of $K$ is the point where the major axis and minor axis of $K$ cross.
By definition of the major axis and minor axis, this is the point midway between the foci.
Linguistic Note
The British English spelling of center is centre.
The convention on $\mathsf{Pr} \infty \mathsf{fWiki}$ is to use the American English spelling center, but it is appreciated that there may be lapses.
Sources
- 1933: D.M.Y. Sommerville: Analytical Conics (3rd ed.) ... (previous) ... (next): Chapter $\text {V}$. The Hyperbola: $2$.
- 2014: Christopher Clapham and James Nicholson: The Concise Oxford Dictionary of Mathematics (5th ed.) ... (previous) ... (next): hyperbola