Fix coupon collector

diff --git a/eval.html b/eval.html
index f3398676b999d8db565f66a8a443ceda72b99b7c..5f461d006503a33662c5c4b1c7d852cb06e230e2 100644 (file)
--- a/eval.html
+++ b/eval.html
@@ -142,7 +142,7 @@ surface_area_of_cylinder = function(r, h) {
 }
 coupon_collector = function(coupons) {
     //
-    return coupons*Math.log(coupons) + 0.577215*coupon + 0.5;
+    return coupons*Math.log(coupons) + 0.577215*coupons + 0.5;
 }
 
 </script>