swift.org.ua Howto Math Example: $$f(x) = \int_{-\infty}^\infty \hat f(\xi)\,e^{2 \pi i \xi x} \,d\xi$$ Works using KaTeX and Kramdown. Rerefence: https://gendignoux.com/blog/2020/05/23/katex.html#converting-formulas-to-html-with-kramdown