Math Views with Tex Notations

Hexo can automatically include Mathjax and almost correctly interpret tex commands to math formulas. The author is a VSCoder, and prefer built-in Markdown-viewer with extension “Markdown+Math” (ID: goessner.mdmath). Therefore the only purpose is to let both Hexo and VSCode display a common file well.

Installation

Required packages:

• hexo-math
• hexo-renderer-kramed (or hexo-renderer-pandoc)

#install hexo-math
npm install --save hexo-math
# check installed renderers, at the root of Hexo
grep "hexo-renderer-" ./package.json
# uninstall hexo-renderer-marked if exists
npm uninstall --save hexo-renderer-marked;
# install hexo-renderer-kramed if inexists
npm install --save hexo-renderer-kramed;

Configuration

MathJax source link has been changed in 2017 (https://www.mathjax.org/cdn-shutting-down/). The link shown below is available.

_config.yml

+ math:
+ engine: 'mathjax'
+ mathjax:
+ src: https://cdnjs.cloudflare.com/ajax/libs/mathjax/2.7.1/MathJax.js?config=TeX-AMS_CHTML
+ config:
+ tex2jax:
+ inlineMath: [ ['$','$'], ["\\(","\\)"] ]
+ displayMath: [ ['$$','$$'], ["\\[","\\]"] ]

Templates

<!-- inline formula -->
$formula-0$

<!-- formula block, centered -->
$$
formula-1 \\
formula-2 \\
...
formula-n \\
$$

Previews

$$\|x\| = \mathrm{abs}(x)$$ $$\sum_{k=1}^3 k = \prod_{k=1}^3 k$$ $$f_k = \begin{cases} 1 & (k = 0 \lor k = 1) \\ f_{k - 1} + f_{k - 2} & (otherwise) \end{cases}$$ $$\begin{eqnarray*} \binom{n}{k} &=& \binom{n - 1}{k - 1} + \binom{n - 1}{k} \\ &=& \binom{n - 2}{k - 2} + 2\binom{n - 2}{k - 1} + \binom{n - 2}{k} \end{eqnarray*}$$ $$\overline{P \cup Q} = \overline{P} \cap \overline{Q}$$ $$\varlimsup_{n \to \infty} A_n = \bigcap_{n \in \mathbb{N}}\bigcup_{k \ge n} A_k$$ $$\iint_{\Omega} f(x,y) dxdy$$ $$H = \frac{1}{\sqrt{2}}\left( \begin{array}{cc} 1 & 1 \\ 1 & -1 \end{array} \right)$$

Codes

$$
    \|x\| = \mathrm{abs}(x)
$$
$$
    \sum_{k=1}^3 k = \prod_{k=1}^3 k
$$
$$
    f_k = \begin{cases}
      1 & (k = 0 \lor k = 1) \\
      f_{k - 1} + f_{k - 2} & (otherwise)
    \end{cases}
$$
$$
    \begin{eqnarray*}
      \binom{n}{k} 
      &=& \binom{n - 1}{k - 1} + \binom{n - 1}{k} \\
      &=& \binom{n - 2}{k - 2} + 2\binom{n - 2}{k - 1} + \binom{n - 2}{k}
    \end{eqnarray*}
$$
$$
    \overline{P \cup Q} = \overline{P} \cap \overline{Q}
$$
$$
    \varlimsup_{n \to \infty} A_n = \bigcap_{n \in \mathbb{N}}\bigcup_{k \ge n} A_k
$$
$$
    \iint_{\Omega} f(x,y) dxdy
$$
$$
    H = \frac{1}{\sqrt{2}}\left(
    \begin{array}{cc}
      1 & 1 \\
      1 & -1
    \end{array}
    \right)
$$