From: orzz (123orzz at gmail.com) Date: Sat Sep 22 23:46:21 EDT 2007 

(define (A x y) (cond ((= y 0) 0) ((= x 0) (* 2 y)) ((= y 1) 2) (else (A ( x 1) (A x ( y 1)))))) http://en.wikipedia.org/wiki/Ackermann_function A(m,n)= n+1 if m = 0 A(m1,1) if m > 0 and n = 0 A(m1,A(m,n1)) if m > 0 and n > 0 (define (AWIKI m n) (cond ((= m 0) (+ n 1)) ((= n 0) (AWIKI ( m 1) 1)) (else (AWIKI ( m 1) (AWIKI m ( n 1)))))) all that confuse me.anyone give me a hand.thx!
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