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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 of Kronecker delta

First recorded in 1925–30; named after L. Kronecker
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
British Dictionary definitions for kronecker delta

Kronecker delta

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 unitySymbol: δ ij

Word Origin for Kronecker delta

named after Leopold Kronecker (1823–91), German mathematician
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012