diff --git a/docs/javascripts/mathjax.js b/docs/javascripts/mathjax.js
new file mode 100644
index 0000000..6bb37b3
--- /dev/null
+++ b/docs/javascripts/mathjax.js
@@ -0,0 +1,9 @@
+window.MathJax = {
+  tex: {
+    inlineMath: [["\\(", "\\)"]],
+    displayMath: [["\\[", "\\]"]],
+  },
+  options: {
+    processHtmlClass: "arithmatex",
+  },
+};
diff --git a/mkdocs.yml b/mkdocs.yml
index b7b925f..79e88b2 100644
--- a/mkdocs.yml
+++ b/mkdocs.yml
@@ -78,6 +78,10 @@ markdown_extensions:
       custom_checkbox: true
   - pymdownx.tilde
 
+extra_javascript:
+  - javascripts/mathjax.js
+  - https://unpkg.com/mathjax@3/es5/tex-mml-chtml.js
+
 nav:
   - 首页: index.md
   - 项目: