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Kronecker delta

noun

Etymology

Named after German mathematician Leopold Kronecker (1823–1891)

Definitions

  1. A binary function, written as δ with two subscripts, which evaluates to 1 when its…

    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.
    • The permutation symbol and the Kronecker delta prove to be very useful in proving vector identities.

  2. A unary function, written as δ with a single index, which evaluates to 1 at zero, and 0…

    A unary function, written as δ with a single index, which evaluates to 1 at zero, and 0 elsewhere.

The neighborhood

Vish — recursive loop

No curated loop yet for Kronecker delta. Loops are being traced one word at a time while the ingestion pipeline matures.

sense glosses and etymology drawn from English Wiktionary · source · CC-BY-SA