// Basic Demo // Show off the capabilities of the IV visualizer // with various flow control operations and iteratively // calculate values in the fibonacci sequence. : five 3 2 + ; : fibo 1 1 begin over over + repeat ; : cond2 < if 3 else 4 then 5 ; : nest if 1 if 2 if 3 if 4 then then then 5 then ; : main begin five nest 2 fibo + repeat ;