⍛
Default Bind r←[x]({Fn}⍛{Gm})y
Exactly one of the arguments is an array and exactly one of the arguments is a function. If x
is provided, r
is x A y
, where A
is the function operand. If x
is not provided, if n
is provided, r
is n G y
; if m
is provided, r
is y F m
.