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Ellipsoid - Wikipedia
Ellipsoid -- from Wolfram MathWorld
Ellipsoid - Math.net
Ellipsoid | Surfaces, Axes, Foci | Britannica
The ellipsoid - Math Insight
2.20: Ellipses and Ellipsoids - Physics LibreTexts
12.6: Quadric Surfaces - Mathematics LibreTexts
Ellipsoid - Simple English Wikipedia, the free encyclopedia
Ellipsoid - Encyclopedia of Mathematics
Ellipsoid - Explanation, Equation, Volume and FAQs - Vedantu