Delta Function

Delta function may refer to the distribution:

  • Dirac delta function,

or the indexed matrix:

  • Kronecker delta, \delta_{ij} = \left\{\begin{matrix} 1, & \mbox{if } i=j \\ 0, & \mbox{if } i \ne j \end{matrix}\right.


Famous quotes containing the word function:

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    —Emma Goldman (1869–1940)