Kronecker delta
FUNCTION
Kronecker delta symbol; Kronecker tensor; Kronecker delta function; Kronecker's delta; Kroenecker Delta Function; Kronekker delta; Kroenecker delta; Kroneker delta; Kronicker delta; Kronecker comb; Generalized Kronecker delta; Substitution tensor; Multi-index Kronecker delta; Generalized Kronecker delta function
In mathematics, the Kronecker delta (named after Leopold Kronecker) is a function of two variables, usually just non-negative integers. The function is 1 if the variables are equal, and 0 otherwise: