Fibonacci numbers in Icon

Example for versions iconc 9.4

This example uses recursive calculation of Fibonacci numbers with memoization. 

global fib_memo

procedure fib (n)
   if n >= 0 then
      return ((/fib_memo [n] := fib (n - 2) + fib (n - 1)) | fib_memo [n])
end

procedure main ()
   local i
   fib_memo := table ()
   fib_memo [0] := 0; fib_memo [1] := 1
   every i := 1 to 16 do {
      writes (fib (i) || ", ")
   }
   write("...")
end