A Spheroid which is ``pointy'' instead of ``squashed,'' i.e., one for which the polar radius is greater than
the equatorial radius , so . A prolate spheroid has Cartesian equations
See also Darwin-de Sitter Spheroid, Ellipsoid, Oblate Spheroid, Prolate Spheroidal Coordinates, Sphere, Spheroid
Beyer, W. H. CRC Standard Mathematical Tables, 28th ed. Boca Raton, FL: CRC Press, p. 131, 1987.