Math

Posted 2026/04/14Updated 2026/04/18

By 廿四2 min Read

Adds $T E X$ support in your VitePress site.

Settings

Install related $T E X$ package markdown-it-mathjax3 in your project:

pnpmnpmyarnbun

bash

$ pnpm add -D markdown-it-mathjax3

bash

$ npm add -D markdown-it-mathjax3

bash

$ yarn add -D markdown-it-mathjax3

bash

$ bun add -D markdown-it-mathjax3

Then enabling via:

.vitepress/config.ts

import { defineConfig } from 'vitepress-theme-niansi'

export default defineConfig({
  markdown: {
    math: true,
  }
})

When $a \neq 0$ , there are two solutions to $(a x^{2} + b x + c = 0)$ and they are

x = \frac{- b \pm \sqrt{b^{2} - 4 a c}}{2 a}

Demo

When $a \ne 0$, there are two solutions to $(ax^2 + bx + c = 0)$ and they are
$$ x = {-b \pm \sqrt{b^2-4ac} \over 2a} $$

2026-04-18 23:33

View All Changelog