Math Equations

Mathematical equations can be rendered using KaTeX.

See below how to activate them.

Please read the KaTeX documentation for more details.

Write inline math equations by wrapping LaTeX equations between $:

Let $f\colon[a,b]\to\R$ be Riemann integrable. Let $F\colon[a,b]\to\R$ be
$F(x)=\int_{a}^{x} f(t)\,dt$. Then $F$ is continuous, and at all $x$ such that
$f$ is continuous at $x$, $F$ is differentiable at $x$ with $F'(x)=f(x)$.

Let $f\colon[a,b] \to \R$ be Riemann integrable. Let $F\colon[a,b]\to\R$ be $F(x)= \int_^ f(t),dt$. Then $F$ is continuous, and at all $x$ such that $f$ is continuous at $x$, $F$ is differentiable at $x$ with $F'(x)=f(x)$.

For equation block or display mode, use ```math fenced code blocks.

```math
I = \int_0^{2\pi} \sin(x)\,dx
```

You can also use line breaks and $$, although this syntax relies on a Markdown syntax extension and is less portable:

$$
I = \int_0^{2\pi} \sin(x)\,dx
$$

I = \int_0^{2\pi} \sin(x)\,dx

Enable KaTeX:

1. Install the remark-math and rehype-katex plugins:

   npm install --save remark-math@6 rehype-katex@7

2. These 2 plugins are only available as ES Modules. We recommended to use an ES Modules config file:

   import remarkMath from 'remark-math';import rehypeKatex from 'rehype-katex';export default {  presets: [    [      '@docusaurus/preset-classic',      {        docs: {          path: 'docs',          remarkPlugins: [remarkMath],          rehypePlugins: [rehypeKatex],        },      },    ],  ],};

    If you decide to use a CommonJS config file, it is possible to load those ES module plugins thanks to dynamic imports and an async config creator function:

module.exports = async function createConfigAsync() {  return {    presets: [      [        '@docusaurus/preset-classic',        {          docs: {            path: 'docs',            remarkPlugins: [(await import('remark-math')).default],            rehypePlugins: [(await import('rehype-katex')).default],          },        },      ],    ],  };};

3. Include the KaTeX CSS in your config under stylesheets:

   export default {
     //...
     stylesheets: [
       {
         href: 'https://cdn.jsdelivr.net/npm/katex@0.13.24/dist/katex.min.css',
         type: 'text/css',
         integrity:
           'sha384-odtC+0UGzzFL/6PNoE8rX/SPcQDXBJ+uRepguP4QkPCm2LBxH3FA3y+fKSiJ+AmM',
         crossorigin: 'anonymous',
       },
     ],
   };

import remarkMath from 'remark-math';import rehypeKatex from 'rehype-katex';export default {  title: 'Docusaurus',  tagline: 'Build optimized websites quickly, focus on your content',  presets: [    [      '@docusaurus/preset-classic',      {        docs: {          path: 'docs',          remarkPlugins: [remarkMath],          rehypePlugins: [rehypeKatex],        },      },    ],  ],  stylesheets: [    {      href: 'https://cdn.jsdelivr.net/npm/katex@0.13.24/dist/katex.min.css',      type: 'text/css',      integrity:        'sha384-odtC+0UGzzFL/6PNoE8rX/SPcQDXBJ+uRepguP4QkPCm2LBxH3FA3y+fKSiJ+AmM',      crossorigin: 'anonymous',    },  ],};

Loading stylesheets, fonts, and JavaScript libraries from CDN sources is a good practice for popular libraries and assets, since it reduces the amount of assets you have to host. In case you prefer to self-host the katex.min.css (along with required KaTeX fonts), you can download the latest version from KaTeX GitHub releases, extract and copy katex.min.css and fonts directory (only .woff2 font types should be enough) to your site's static directory, and in docusaurus.config.js, replace the stylesheet's href from the CDN URL to your local path (say, /katex/katex.min.css).

export default {
  stylesheets: [
    {
      href: '/katex/katex.min.css',
      type: 'text/css',
    },
  ],
};