diff --git a/tutorial/smooth-curve.md b/tutorial/smooth-curve.md
index d30fad6..7768b48 100644
--- a/tutorial/smooth-curve.md
+++ b/tutorial/smooth-curve.md
@@ -1,4 +1,4 @@
-# 折线平滑方案演进
+# 两种折线平滑方案
 
 平滑折线的场景还是蛮多的，如软体模拟、数学方程可视化、流体模拟、数据可视化、屏保程序[curvejs](https://github.com/AlloyTeam/curvejs)等等方面都有其用武之地。如水的模拟: