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Kronecker delta

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Kronecker delta

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Also known as Kronecker delta symbol

function

~21 min read

Encyclopedic overview

In mathematics, the Kronecker delta (named after Leopold Kronecker) is a function of two variables, usually non-negative integers. The function is 1 if the variables are equal, and 0 otherwise:

δ

Excerpted from Wikipedia’s “Kronecker delta” article, available under the CC BY-SA 4.0 licence.