product ( seq -- n )
Factor handbook » The language » Collections » Sequence operations » Sequence combinators

Prev:	sum ( seq -- n )
Next:	any? ( ... seq quot: ( ... elt -- ... ? ) -- ... ? )

Vocabulary
sequences

Inputs

seq	a sequence of numbers

Outputs

n

a number

Word description
Outputs the product of all elements of seq. Outputs one given an empty sequence.

Definition

USING: math ;

IN: sequences

: product ( seq -- n ) 1 [ * ] binary-reduce ;