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What (who) is BCFW recursion - definition
BCFW recursion
METHOD IN QUANTUM CHROMODYNAMICS
Britto-Cachazo-Feng-Witten recursion; Britto–Cachazo–Feng–Witten recursion
The Britto–Cachazo–Feng–Witten recursion relations are a set of on-shell recursion relations in quantum field theory. They are named for their creators, Ruth Britto, Freddy Cachazo, Bo Feng and Edward Witten.
Tail call
SUBROUTINE THAT CALLS ITSELF AS ITS FINAL ACTION
Tail recursion; Tail recursion modulo cons; Tail-recursive; Tail recursive; Tail call optimization; Tail Recursion; Tail-call optimization; Tailcall; Tail-call optimisation; Tail-call elimination; Tail-recursion; Tail-end recursion; Tail call elimination; Tail recursion elimination; Tail recursion optimization; Tail-recursion optimization; Proper tail recursion; Tail function; Tail recursive function; Tail-recursive function
In computer science, a tail call is a subroutine call performed as the final action of a procedure. If the target of a tail is the same subroutine, the subroutine is said to be tail recursive, which is a special case of direct recursion.
tail recursion
SUBROUTINE THAT CALLS ITSELF AS ITS FINAL ACTION
Tail recursion; Tail recursion modulo cons; Tail-recursive; Tail recursive; Tail call optimization; Tail Recursion; Tail-call optimization; Tailcall; Tail-call optimisation; Tail-call elimination; Tail-recursion; Tail-end recursion; Tail call elimination; Tail recursion elimination; Tail recursion optimization; Tail-recursion optimization; Proper tail recursion; Tail function; Tail recursive function; Tail-recursive function
<programming> When the last thing a function (or procedure)
does is to call itself. Such a function is called tail
recursive. A function may make several recursive calls but
a call is only tail-recursive if the caller returns
immediately after it. E.g.
f n = if n < 2 then 1 else f (f (n-2) + 1)
In this example both calls to f are recursive but only the
outer one is tail recursive.
Tail recursion is a useful property because it enables {tail
recursion optimisation}.
If you aren't sick of them already, see recursion and {tail
recursion}.
[Jargon File ]
(2006-04-16)
