DeltaFunction

Description

DeltaFunction[x] is the Dirac delta-function δ(x).

See also:  Convolute, DeltaFunctionPrime, Integrate2, SimplifyDeltaFunction.

Examples

DeltaFunction[1 - x]

Integrate2[DeltaFunction[1 - x] f[x], {x, 0, 1}]

Integrate2[DeltaFunction[x] f[x], {x, 0, 1}]

Integrate2[DeltaFunction[1 - x] f[x], {x, 0, 1}]

Convolute[DeltaFunction[1 - x], x]