| Inspired by Maxwell and his mathematics, Niven turned increasingly towards the study of spherical and ellipsoidal harmonics. |
| Here it is usually enclosed in the cephalis and is spherical, ellipsoidal or spheroidal, often flattened almost into a disc. |
| They do not show any disks or ellipsoidal shapes, however a sub-class of disk-shaped galaxies are starting to occur through observations. |
| The particles may have any shape or size, but they are generally spherical, ellipsoidal, polyhedral, or irregular in shape. |
| He used them to transform Laplace's equation into ellipsoidal coordinates and so separate the variables and solve the resulting equation. |
| Thus, each cluster is represented by an ellipsoid using the new axes as the ellipsoidal axes, and the variance along these axes as the axis lengths. |
