degree symbol

ailzy · Aug 17, 2019 · d11d423 · d11d423
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commit d11d423
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/...ms/18.2-Diagonal-Linear-Discriminant-Analysis-and-Nearest-Shrunken-Centroids.md b/...ms/18.2-Diagonal-Linear-Discriminant-Analysis-and-Nearest-Shrunken-Centroids.md
@@ -47,7 +47,7 @@ $$
 
 ![](../img/18/fig18.2.png)
 
-> 软阈值函数 $\sign(x)(\vert x\vert-\Delta)\_+$ 用橘黄色表示，并且图中也画出了 $45^\degree$ 的直线．
+> 软阈值函数 $\sign(x)(\vert x\vert-\Delta)\_+$ 用橘黄色表示，并且图中也画出了 $45^\circ$ 的直线．
 
 如图 18.2，我们采用 **软阈值 (soft thresholding)** 将 $d_{kj}$ 收缩到 0