abs ( x -- y )
Factor handbook » The language » Numbers » Mathematical functions » Powers and logarithms

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Vocabulary
math

Inputs

x

a number

Outputs

y	a non-negative real number

Word description
Computes the absolute value of a number.

See also
absq

Definition

IN: math

GENERIC: abs ( x -- y ) foldable flushable

Methods

USING: math math.functions ;

M: complex abs absq sqrt ; inline


USING: math ;

M: float abs double>bits 63 2^ bitnot bitand bits>double ;
    inline


USING: kernel math math.ratios.private ;

M: ratio abs dup neg? [ >fraction [ neg ] dip fraction> ] when ;


USING: kernel math ;

M: real abs dup 0 < [ neg ] when ; inline