Skip to content

Instantly share code, notes, and snippets.

@ay

ay/ycombinator.scm

Last active August 29, 2015 14:16
Show Gist options
  • Save ay/2a0ba5108a69139eef24 to your computer and use it in GitHub Desktop.
Save ay/2a0ba5108a69139eef24 to your computer and use it in GitHub Desktop.
Download ZIP
Factorial with Y combinator
Raw
ycombinator.scm
(define (f partial)
(lambda (n)
(cond ((= n 0) 1)
(else (* n (partial (- n 1)))))))
(define (y f)
((lambda (g)
(g g)) (lambda (g) (lambda (n) ((f (g g)) n)))))
(define fact (y f))
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment