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, i ≠ j.

Kronecker delta

/ ˈkrɒnɪkə /

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 unity δij

Word History and Origins

Origin of Kronecker delta¹

First recorded in 1925–30; named after L. Kronecker

Word History and Origins

Origin of Kronecker delta¹

named after Leopold Kronecker (1823–91), German mathematician