update

mcdearman · Jun 9, 2024 · 599e1b2 · 599e1b2
1 parent 2fb4a1e
commit 599e1b2
Showing 1 changed file with 13 additions and 0 deletions.
diff --git a/examples/mvp.scm b/examples/mvp.scm
@@ -45,6 +45,19 @@
     (if (= i 0)
         a
         (loop b (+ a b) (- i 1)))))
+
+;; def fib_iter n =
+;;   let loop a b i =
+;;     if i = 0 then a
+;;     else loop b (a + b) (i - 1)
+;;   in loop 0 1 n
+
+(def (fib-iter n) 
+  (letf (loop a b i) 
+    (if (= i 0)
+        a 
+        (loop b (+ a b) (- i 1)))
+    (loop 0 1 n)))
 
 ;; this could also be done with a `match` expression
 (def (fib n)