# Markdown snippet for Hugo post

The solutions are mainly derived from Yihui’s JS library.

## Code

By using:

```
` ` `r
a <- 1 + 1
...
` ` `
```

produces:

```
a = 1 + 1
...
```

## MathJax

Solution:

- Add
`math-code.js`

. to`static/js/`

. Add the following lines to

`layouts/partials/footer_section.html`

.`<!-- 加入MathJax, 用于Markdown中输入数学公式 --> <!-- 如：`$x^2 + y^2 = z^2$` --> {{ if and (not .Params.disable_mathjax) (or (in (string .Content) "\\") (in (string .Content) "$")) }} <script async src="//mathjax.rstudio.com/latest/MathJax.js?config=TeX-MML-AM_CHTML"></script> {{ end }}`

By using:

```
`$x^2 + y^2 = z^2$`
```

produces:

`$x^2 + y^2 = z^2$`

## Footnote

Solution: add `fix-footnote.js`

. to `static/js/`

.

By using:

```
bla ...
^[This is a footnote.]
bla ...
^[This is another footnote.]
```

produces:

bla …
^{1}

bla …
^{2}