MathJax

When $a \ne 0$, there are two solutions to $ax^2 + bx + c = 0$ and they are

You need set mathjax: true in the _config.yml or the markdown’s front matter to enable it.

After MathJax enabled, you can set mathjax_autoNumber: true to have equations be numbered automatically, You can use \notag or \nonumber to prevent individual equations from being numbered.

markdown:

When $$a \ne 0$$, there are two solutions to $$ax^2 + bx + c = 0$$ and they are
$$x_1 = {-b + \sqrt{b^2-4ac} \over 2a}$$
$$x_2 = {-b - \sqrt{b^2-4ac} \over 2a} \notag$$

front matter:

---
...
mathjax: true
mathjax_autoNumber: true
---

hello:

---
...
mathjax: true
mathjax_autoNumber: true
---

wobu cao ni ba

hello c

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Audio

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Slide

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