singularity: 意味と定義

The quality or condition of being singular.

A trait marking one as distinct from others; a peculiarity.

Something uncommon or unusual.

Astrophysics A point in space-time at which gravitational forces cause matter to have infinite density and infinitesimal volume, and space and time to become infinitely distorted.

Mathematics A point at which the derivative does not exist for a given function but every neighborhood of which contains points for which the derivative exists. Also called singular point.