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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    Ralph Waldo Emerson (1803–1882)