characteristic function

American  

noun

Mathematics.

1. a function defined on a given set, having value 1 for every element of the set and value 0 for every element not contained in the set.

2. characteristic polynomial.

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characteristic function British  

noun

1. maths a function that assigns the value 1 to the members of a given set and the value 0 to its nonmembers

2. statistics a function derived from the probability distribution function that enables the distribution of the sum of given random variables to be analysed

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Etymology

Origin of characteristic function

First recorded in 1875–80

Example Sentences

In the granting of supplies, the characteristic function of the lower chamber, the authority of the Governor was now substituted for that of Parliament.

From Lord Milner's Work in South Africa From its Commencement in 1897 to the Peace of Vereeniging in 1902 by Worsfold, W. Basil (William Basil)

What, then, is the characteristic function of philosophy, at least its initial function, that which marks its opening?

From A New Philosophy: Henri Bergson by Benson, Vincent

Now we are better prepared to recognize the characteristic function of the artist.

From The Photoplay A Psychological Study by Münsterberg, Hugo

Chromium when alloyed with steel, has the characteristic function of opposing the disintegration and reconstruction of cementite.

From The Working of Steel Annealing, Heat Treating and Hardening of Carbon and Alloy Steel by Colvin, Fred H. (Fred Herbert)

They perform to a large extent the work of management; they supply capital on what may be a considerable scale; but it is the taking of business risk which is perhaps their most characteristic function.

From Supply and Demand by Henderson, Hubert D.