Stack supports math typesetting via KaTeX. Enable per post with math: true in front matter, or site‑wide by setting params.article.math = true in config.toml.

Inline math: $\varphi = \dfrac{1+\sqrt5}{2}= 1.6180339887…$

Block math:

$$ \varphi = 1+\frac{1} {1+\frac{1} {1+\frac{1} {1+\cdots} } } $$

$$ f(x) = \int_{-\infty}^\infty\hat f(\xi)\,e^{2 \pi i \xi x}\,d\xi $$