unit function

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English

Noun

unit function (plural unit functions)

(mathematics) a completely multiplicative function on the positive integers that is defined as equal to one for a special value and zero otherwise:

\varepsilon (n)={\begin{cases}1,&{\mbox{if }}n=1\\0,&{\mbox{if }}n\neq 1\end{cases}}

Hypernyms

multiplicative function

Hyponyms

Heaviside unit function

References

unit function on Wikipedia.Wikipedia

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