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README.md

hexo-math

Tester npm version npm license npm download

Embed KaTeX and MathJax in Hexo post/page via tag plugins. Equations are rendered in Hexo (server-side), so browser-side javascript library is not needed and should be removed. CSS stylesheets are included by default but can be easily replaced.

Installation

$ npm i hexo-math --save
  • Requires Hexo 5+

Usage

KaTeX

{% katex '{options}' %}
content
{% endkatex %}

Examples

{% katex %}
c = \pm\sqrt{a^2 + b^2}
{% endkatex %}

Override front-matter and global options for a particular content. Options must be specified in JSON format.

{% katex '{ "output": "mathml", "felqn": true, "minRuleThickness": 0.05, "throwOnError": true }' %}
c = \pm\sqrt{a^2 + b^2}
{% endkatex %}

MathJax

{% mathjax '{options}' %}
content
{% endmathjax %}

Examples

{% mathjax %}
\frac{1}{x^2-1}
{% endmathjax %}

Override front-matter and global options for a particular content. Options must be specified in JSON format.

{% mathjax '{ "conversion": { "em": 14 }, "tex": { "tags": "ams" }, "svg": { "exFactor": 0.03 } }' %}
\frac{1}{x^2-1}
{% endmathjax %}

Per-article configuration

Override the global options via the front-matter of an article (post/page) basis.

---
title: On the Electrodynamics of Moving Bodies
categories: Physics
date: 1905-06-30 12:00:00
katex: false
mathjax: false
---

Options

Disable math renderer in an article:

---
katex: false
mathjax: false
---

Override global options:

---
katex:
  output: 'mathml'
  felqn: true
  minRuleThickness: 0.05
  throwOnError: true
mathjax:
  conversion:
    em: 14
  tex:
    tags: 'ams'
  svg:
    exFactor: 0.03
---

Global Options

# _config.yml
math:
  katex:
    css: 'https://cdn.jsdelivr.net/npm/katex@0.12.0/dist/katex.min.css'
    options:
      throwOnError: false
  mathjax:
    css: 'https://cdn.jsdelivr.net/npm/hexo-math@4.0.0/dist/style.css'
    options:
      conversion:
        display: false
      tex:
      svg:
  • css: Location of stylesheet.
    • Specify a relative path if you're self-hosting the stylesheet.
      • Example: css: '/css/style.css' refers to source/css/style.css or themes/<theme-name>/source/css/style.css.
    • It can be disabled (css: false) if the installed theme has already included one.

KaTeX

  katex:
    options:
      throwOnError: false

MathJax

  mathjax:
    options:
      conversion:
        display: false
      tex:
      svg:

Configuration priority

Unique options are combined, if there is any duplicate options, argument overrides front-matter, front-matter overrides global options.

Example:

{% katex '{ "output": "html", "felqn": true }' %}
content
{% endkatex %}
# front-matter
---
katex:
  output: 'mathml'
  minRuleThickness: 0.05
  throwOnError: true
---
# _config.yml
math:
  katex:
    options:
      minRuleThickness: 0.03
      maxExpand: 900

Following options will be parsed as argument for that specific content:

{
  output: 'html',
  felqn: true,
  minRuleThickness: 0.05,
  throwOnError: true,
  maxExpand: 900
}

Similar project

  • hexo-filter-mathjax: A MathJax plugin developed by @stevenjoezhang, who is also a Hexo developer. It enables you to write LaTeX in-line within your post without using a tag {% %}.
    • hexo-math uses tag plugin approach due to minor incompatibility between LaTeX and marked, the default markdown renderer of Hexo (via hexo-renderer-marked).

About

A hexo plugin that uses MathJax to render math equations.

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