trusted
41
edits
Times: Difference between revisions
Jump to navigation
Jump to search
Cleanup after move
(Cleanup after move) |
|||
| Line 1: | Line 1: | ||
:''This page describes the dyadic arithmetic function. For sign of a single argument, see [[Signum]].'' | :''This page describes the dyadic arithmetic function. For sign of a single argument, see [[Signum]].'' | ||
{{Built-in| | {{Built-in|Times|×}}, '''Multiply''', or '''Product''' is a [[dyadic]] [[scalar function]] which gives the arithmetic product of its [[argument]]s. Times shares the [[glyph]] <source lang=apl inline>×</source> with the monadic arithmetic function [[Signum]]. | ||
== Examples == | == Examples == | ||
A long, slow way to write < | A long, slow way to write <source lang=apl inline>!10</source>, assuming <source lang=apl inline>⎕IO←1</source>: | ||
<source lang=apl> | <source lang=apl> | ||
×/⍳10 | ×/⍳10 | ||
| Line 11: | Line 11: | ||
== Properties == | == Properties == | ||
Multiplication is [[wikipedia:Commutative property|commutative]] and [[wikipedia:Associative property|associative]], but, due to floating point error, may result in small differences between mathematically equivalent expressions. | |||
= | The [[identity element]] for Times is <source lang=apl inline>1</source>. | ||
[[Reduction]] with | === Reduction === | ||
[[Reduction]] with Multiply gives the product of the whole list. | |||
== External links == | == External links == | ||