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+---
+title: Math Typesetting
+description: Math typesetting using KaTeX
+date: 2023-08-24 00:00:00+0000
+math: true
+---
+
+Stack has built-in support for math typesetting using [KaTeX](https://katex.org/).
+
+**It's not enabled by default side-wide,** but you can enable it for individual posts by adding `math: true` to the front matter. Or you can enable it side-wide by adding `math = true` to the `params.article` section in `config.toml`.
+
+## Inline math
+
+This is an inline mathematical expression: $\varphi = \dfrac{1+\sqrt5}{2}= 1.6180339887…$
+
+```markdown
+$\varphi = \dfrac{1+\sqrt5}{2}= 1.6180339887…$
+```
+
+## Block math
+
+$$
+    \varphi = 1+\frac{1} {1+\frac{1} {1+\frac{1} {1+\cdots} } } 
+$$
+
+```markdown
+$$
+    \varphi = 1+\frac{1} {1+\frac{1} {1+\frac{1} {1+\cdots} } } 
+$$
+```
+
+$$
+    f(x) = \int_{-\infty}^\infty\hat f(\xi)\,e^{2 \pi i \xi x}\,d\xi
+$$
+
+```markdown
+$$
+    f(x) = \int_{-\infty}^\infty\hat f(\xi)\,e^{2 \pi i \xi x}\,d\xi
+$$
+```
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