zerop (AutoLISP)

Verifies that a number evaluates to zero

Supported Platforms: Windows and Mac OS

Signature

(zerop number)

number

Type: Integer or Real

A numeric value.

Return Values

Type: T or nil

T if number evaluates to zero; otherwise nil.

Examples

(zerop 0)
T

(zerop 0.0)
T

(zerop 0.0001)
nil