Hello all, I'm trying to implement ackerman function, but I got no luck ... and I cannot understand why this code doesn't work:
z←m ack n →(m=0)/∆1 →(n=0)/∆2 z←(m-1) ack (m ack (n-1)) ∆1: z←n+1 ⋄ →0 ∆2: z←(m-1) ack 1 is the double recursion permitted in APL2 ? thanks, fausto
