[-1,1]? ( x -- ? ) - Factor Documentation

Vocabulary
math.functions

Inputs and outputs

x	a number
?	a boolean

Word description
Tests if x is a real number between -1 and 1, inclusive.

Definition

USING: kernel math ;

IN: math.functions

: [-1,1]? ( x -- ? )
    dup complex? [ drop f ] [ abs 1 <= ] if ; inline