diff --git a/docs/chapter2/2.4.md b/docs/chapter2/2.4.md
index 39e8338..642c543 100644
--- a/docs/chapter2/2.4.md
+++ b/docs/chapter2/2.4.md
@@ -50,4 +50,4 @@ short_points = torch.ones(10, 2).to(dtype=torch.short)
 points = torch.randn(10, 2)
 short_points = points.type(torch.short)
 ```
-上例的`randn`返回一个元素是0到1之间随机数的张量。
\ No newline at end of file
+上例的`randn`返回一个元素是正态分布随机数的张量。