RosettaCodeData/Task/Fibonacci-sequence/PicoLisp/fibonacci-sequence-4.l
2023-07-01 13:44:08 -04:00

4 lines
89 B
Text

(de fib (N)
(let (A 0 B 1)
(do N
(prog1 B (setq B (+ A B) A @)) ) ) )