Wolfram Language & System 10.0 (2014)|Legacy Documentation

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HeavisideTheta

HeavisideTheta[x]
represents the Heaviside theta function , equal to 0 for and 1 for .

HeavisideTheta[x1,x2,]
represents the multidimensional Heaviside theta function which is 1 only if none of the are not positive.

DetailsDetails

Introduced in 2007
(6.0)