Conics and aberrations
Ellipsoid - Wikipedia
The Ellipse and the Atom — Greg Egan
Ellipsoid - Wikipedia
What is the surface area of solid generated by rotating an ellipse whose equation is [math]\dfrac{x^2}{a^2}+\dfrac{y^2}{b^2}=1 [/math]about y−y−axis? - Quora
Conics and aberrations
integration - How to find the surface area of revolution of an ellipsoid from ellipse rotating about y-axis - Mathematics Stack Exchange
Conic Sections
Rotate a conic section – GeoGebra
How to find the volume of an ellipsoid - Quora
How is the equation of an ellipsoid determined? - Quora
Rotation of Axes (Ellipse) - YouTube
How to find the volume of an ellipsoid - Quora
Conic Sections
Ellipsoid - Wikipedia
math - 3d imaging: defining an ellipsoid based on 3 given ellipses which are parallel to the Cartesian planes - Stack Overflow
Rotation of Axes (Ellipse) - YouTube
Ellipsoid - Wikipedia
Radius of the inscribed circle within three tangent circles - GeeksforGeeks
Ellipse - Wikipedia
Ellipse - Wikipedia
The Ellipse and the Atom — Greg Egan
Ellipsoid - Wikipedia
geometry - How to express by a single equation a region delimited by confocal ellipse and hyperbola - Mathematics Stack Exchange
Conic Sections -- Rotations - YouTube
CHAPTER VI THE SPHERE
