In Scheme, how do you use lambda to create a recursive function?

Question

I\'m in a Scheme class and I was curious about writing a recursive function without using define. The main problem, of course, is that you cannot call a function within itse

Answer 1

I was curious about writing a recursive function without using define. The main problem, of course, is that you cannot call a function within itself if it doesn't have a name.

A little off-topic here, but seeing the above statements I just wanted to let you know that "without using define" does not mean "doesn't have a name". It is possible to give something a name and use it recursively in Scheme without define.

(letrec
  ((fact
     (lambda (n)
       (if (zero? n)
         1
         (* n (fact (sub1 n)))))))
  (fact 5))

It would be more clear if your question specifically says "anonymous recursion".