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[[Reduction]] with Multiply gives the product of the whole list. | [[Reduction]] with Multiply gives the product of the whole list. | ||
== See also == | |||
* [[Divide]] | |||
* [[Add]] | |||
* [[Power]] | |||
== External links == | == External links == | ||
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=== Documentation === | === Documentation === | ||
* [ | * [https://help.dyalog.com/latest/index.htm#Language/Primitive%20Functions/Multiply.htm Dyalog] | ||
* [http://microapl.com/apl_help/ch_020_020_060.htm APLX] | |||
* J [https://www.jsoftware.com/help/dictionary/d110.htm Dictionary], [https://code.jsoftware.com/wiki/Vocabulary/star#dyadic NuVoc] (as <source lang=j inline>*</source>) | |||
{{APL built-ins}}[[Category:Primitive functions]][[Category:Scalar dyadic functions]] | {{APL built-ins}}[[Category:Primitive functions]][[Category:Scalar dyadic functions]] |
Revision as of 05:09, 25 May 2021
- 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.
See also
External links
Documentation
- Dyalog
- APLX
- J Dictionary, NuVoc (as
*
)