characteristic function

characteristic function

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.

Origin:
1875–80

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World English Dictionary
characteristic function
 
n
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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Computing Dictionary

characteristic function definition

mathematics
The characteristic function of set returns True if its argument is an element of the set and False otherwise.
(1995-04-13)

The Free On-line Dictionary of Computing, © Denis Howe 2010 http://foldoc.org
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