Auxiliary Circle


The circumcircle of an ellipse, i.e., the circle whose center concurs with that of the ellipse and whose radius is equal to the ellipse's semimajor axis.

See also

Circle, Eccentric Angle, Ellipse

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Gallatly, W. The Modern Geometry of the Triangle, 2nd ed. London: Hodgson, p. 75, 1913.Montenbruck, O. and Pfleger, T. Astronomy on the Personal Computer, 4th ed. Berlin: Springer-Verlag, p. 62, 2000.

Referenced on Wolfram|Alpha

Auxiliary Circle

Cite this as:

Weisstein, Eric W. "Auxiliary Circle." From MathWorld--A Wolfram Web Resource.

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