From 91d39de4a6554be5ea1baf5dda6b6e7561b75f87 Mon Sep 17 00:00:00 2001
From: Justin Lin <caterpillar@openhome.cc>
Date: Sat, 8 Jun 2019 08:34:38 +0800
Subject: [PATCH] update doc

---
 docs/lib-in_shape.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/docs/lib-in_shape.md b/docs/lib-in_shape.md
index eafee1d5..24e68624 100644
--- a/docs/lib-in_shape.md
+++ b/docs/lib-in_shape.md
@@ -25,7 +25,7 @@ Checks wether a point is inside a shape.
     ys = rands(-16, 16, n);
 
     pts = [
-        for(i = [0:n]) 
+        for(i = [0:n - 1]) 
             let(p = [xs[i], ys[i]]) 
             if(in_shape(points, p, true))
             p