DiracDelta

Usage

• DiracDelta[x] represents the Dirac delta function .
• DiracDelta[, , ... ] represents the multidimensional Dirac delta function .

Notes

• DiracDelta[x] returns 0 for all numeric x other than 0.

• DiracDelta can be used in integrals, integral transforms and differential equations.

• Some transformations are done automatically when DiracDelta appears in a product of terms.

• DiracDelta[

, ... ] returns 0 if any of the

are numeric and not 0.

• DiracDelta has attribute Orderless.

• For exact numeric quantities, DiracDelta internally uses numerical approximations to establish its result. This process can be affected by the setting of the global variable $MaxExtraPrecision.

• See Section 3.5.13.

• See also: UnitStep, If, PrincipalValue, Limit, KroneckerDelta.

• New in Version 4.

Further Examples