Kronecker delta

名词 n.
中文释义

英文释义

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

词形变化

Kronecker deltas plural

词源

Named after German mathematician Leopold Kronecker (1823–1891)
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