From Wikipedia, the free encyclopedia.
When used as a simple adjective in English, singular usually means unique.
The singular is one of two grammatical numbers in English; the other is the plural.
In mathematics, a square matrix is called singular if it is not invertible.
In complex analysis, a singular point of a function f is a point such that f is analytic in its neighbourhood but not at it. See mathematical singularity.
See also gravitational singularity.
