Difference between revisions of "Times"

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== Examples ==
 
== Examples ==
A long, slow way to write `!10`:
+
A long, slow way to write <code>!10</code>:
 
<source lang=apl>
 
<source lang=apl>
 
×/⍳10
 
×/⍳10

Revision as of 07:38, 26 April 2020

This page describes the dyadic arithmetic function. For sign of a single argument, see Signum.
×

Product (×), Times, or Multiply is a dyadic scalar function which gives the arithmetic product of its arguments. Subtract shares the glyph × with the monadic arithmetic function Signum, and its result is the left argument times the right argument.

Examples

A long, slow way to write !10:

×/10

Properties

Subtraction is commutative: swapping the arguments don't affect the result, e.g. using Commute, *.

Reduction and scan

Reduction with Product gives the product of the whole list.

External links

Documentation