floor ( x -- y )
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Vocabulary
math.functions

Inputs

x

a real

Outputs

y	a whole real number

Word description
Outputs the greatest whole number smaller than or equal to x.

Notes
The result is not necessarily an integer.

Definition

USING: kernel math ;

IN: math.functions

: floor ( x -- y )
    dup 1 mod [ dup 0 < [ - 1 - ] [ - ] if ] unless-zero ;
    foldable flushable