Jump to content

Heaviside step function

From Wikipedia, the free encyclopedia

This is an old revision of this page, as edited by Heron (talk | contribs) at 17:16, 18 September 2002. The present address (URL) is a permanent link to this revision, which may differ significantly from the current revision.

(diff) ← Previous revision | Latest revision (diff) | Newer revision → (diff)

The Heaviside step function is a discontinuous function whose value is zero for negative inputs and unity elsewhere:

  s(x) = { 1 : x > 0
         { 0 : x ≥ 0

It is the integral of the Dirac delta function.

The function is used in the mathematics of signal processing to represent a signal that switches on at a specified time and stays switched on indefinitely.

Retrieved from "https://en.wikipedia.org/w/index.php?title=Heaviside_step_function&oldid=385984"