heaviside step function
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Input interpretation

Heaviside step function

Illustration

Illustration

Alternate names

Heaviside theta function | unit step function

Definition

The Heaviside step function is a mathematical function denoted H(x), or sometimes θ(x) or u(x), and also known as the "unit step function." The term "Heaviside step function" and its symbol can represent either a piecewise constant function or a generalized function.
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Related terms

absolute value | boxcar function | delta function | ramp function | rectangle function | sigmoid function | sign | square wave | triangle function

Related Wolfram Language symbols

HeavisideTheta | Piecewise | UnitStep

Subject classifications

MathWorld

generalized functions | step functions

MSC 2010

46-XX

Associated person

Oliver Heaviside
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