Times
(Redirected from Product)
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 This page describes the dyadic arithmetic function. For sign of a single argument, see Signum.
×

Times (×
), Multiply, or Product is a dyadic scalar function which gives the arithmetic product of its arguments. Times shares the glyph ×
with the monadic arithmetic function Signum.
Examples
A long, slow way to write !10
, assuming ⎕IO←1
:
×/⍳10
Properties
Multiplication is commutative and associative, but, due to floating point error, may result in small differences between mathematically equivalent expressions.
The identity element for Times is 1
.
Reduction
Reduction with Multiply gives the product of the whole list.