测试公式表现

source/_posts/踩坑日记.md

@@ -17,8 +17,7 @@ copyright_author:
 copyright_author_href:
 copyright_url:
 copyright_info:
-mathjax:
-katex:
+katex: true
 highlight_shrink:
 aside:
 ---
@@ -36,4 +35,14 @@ aside:
 
 >未完待续
 
-$ \alpha $
+$\alpha$  表示1
+
+$$\begin{array}{r}
+10 x+3 y=2 \\
+3 x+13 y=4
+\end{array}$$
+
+$\begin{array}{r}
+10 x+3 y=2 \\
+3 x+13 y=4
+\end{array}$