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Built-in Mathematica Symbol

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Unitize

Unitize[x]
gives 0 when x is zero, and 1 when x has any other numerical value.

MORE INFORMATION

Unitize[x, dx] gives 0 for any x with magnitude less than dx.

Unitize[x] gives 0 whenever x0 yields True.

Unitize[x] in general works using PossibleZeroQ, and can handle numbers represented in symbolic form.

Unitize has attribute Listable.

Basic Examples (2)

Convert numerical values to zero or one:

Replace values in a matrix with zeros or ones:

Show a plot that emphasizes structure:

Applications (1)

UnitStep KroneckerDelta Boole Sign DiracDelta Clip

Numerical Functions

New in 6.0: Mathematical Functions

Demonstrations with Unitize (Wolfram Demonstrations Project)

New in 6

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