kronecker delta








noun Mathematics.

  1. a function of two variables, i and j, which equals 1 when the variables have the same value, i = j, and equals 0 when the variables have different values, ij.

noun

  1. maths a function of two variables, i and j, that has a value of zero unless i = j, when it has a value of unitySymbol: δ ij
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