unit function

unit function (plural unit functions )

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

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

• multiplicative function

• Heaviside unit function

• unit function on Wikipedia.Wikipedia

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