Learn more about Symbolic Math Toolbox

heaviside - Compute Heaviside step function

Syntax

heaviside(x)

Description

heaviside(x) has the value 0 for x < 0, 1 for x > 0, and 0.5 for x = 0.

Examples

For x < 0 the function heaviside(x) returns 0:

heaviside(sym(-3))

ans =
0

For x > 0 the function, heaviside(x) returns 1:

heaviside(sym(3))

ans =
1

For x = 0 the function, heaviside(x) returns 1/2:

heaviside(sym(0))

ans =
1/2

For numeric x = 0 the function, heaviside(x) returns the numeric result:

heaviside(0)

ans =
    0.5000

See Also

dirac

getVar

horner (sym)

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