Math support in Markdown

aka: LaTeX, KaTeX, MathJAX

Installation

1. Install dependencies

   pnpm add starlight-katex

2. Configure Astro

   astro.config.mjs

   import { starlightKatex } from "starlight-katex";
   
   export default defineConfig({
     integrations: [
       starlight({
         plugins: [starlightKatex()],
       }),
     ],
   });

Example

example.md

When $a \ne 0$, there are two solutions to $(ax^2 + bx + c = 0)$ and they are

$$
x = {-b \pm \sqrt{b^2-4ac} \over 2a}
$$

When $a \ne 0$, there are two solutions to $(ax^2 + bx + c = 0)$ and they are

$$x = {-b \pm \sqrt{b^2-4ac} \over 2a}$$