What does "kronecker delta" mean?

A binary function, written as δ with two subscripts, which evaluates to 1 when its arguments are equal, and 0 otherwise.

Kronecker delta

Q: What is a synonym for "kronecker delta"?

Common synonyms include: equality indicator, equality selector, identity indicator, identity selector, indicator, selector.

noun

noun ·Rare ·Advanced level

Definitions

Noun

1
A binary function, written as δ with two subscripts, which evaluates to 1 when its arguments are equal, and 0 otherwise.
"The Kronecker delta #92;delta#95;#123;ij#125; is an example of an isotropic tensor. That is, its components remain invariant with rotation of coordinate axes."
2
a function of two variables i and j that equals 1 when i=j and equals 0 otherwise wordnet
3
A unary function, written as δ with a single index, which evaluates to 1 at zero, and 0 elsewhere.

Synonyms

All synonyms

equality indicator equality selector identity indicator identity selector indicator selector

Example

More examples

"The Kronecker delta #92;delta#95;#123;ij#125; is an example of an isotropic tensor. That is, its components remain invariant with rotation of coordinate axes."

Etymology

Named after German mathematician Leopold Kronecker (1823–1891)

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