Windowed Reduce: Difference between revisions

When applied to a [[vector]] argument, <syntaxhighlight lang=apl inline>n f/x</syntaxhighlight> evaluates to the expression <syntaxhighlight lang=apl inline>(a f b f c)(b f c f d)</syntaxhighlight>… where <syntaxhighlight lang=apl inline>a</syntaxhighlight>, <syntaxhighlight lang=apl inline>b</syntaxhighlight>, <syntaxhighlight lang=apl inline>c</syntaxhighlight>, <syntaxhighlight lang=apl inline>d</syntaxhighlight>, … are the elements of <syntaxhighlight lang=apl inline>x</syntaxhighlight>, grouped into windows of size <syntaxhighlight lang=apl inline>n</syntaxhighlight>. It works like [[Reduce]], except applied on overlapping segments of an array, and borrows most of its functionality from it. When  

== Examples ==