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.
Origin
1925-30;
named after L.
Kronecker
British Dictionary definitions for
Kronecker delta
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
δ
ij
Word Origin
named after Leopold
Kronecker
(1823–91), German mathematician