Hi, I use MathJax js library for math formula and use code fences for display code. As you know `\`

is escape character in markdown and has special meaning in Latex. So when I write my Latex code, I must type backslash twice. I want escape area in markdown. code fences is escape area. But code fences rendered to `<code>`

and I sytled it with CSS for displaing code not for math formula. Is there another escape area?

I am sorry for being late. I want post my code on my blog.

```
\begin{array}{l} \tag{2}
& \min_{v} \nabla f^T v \\newline
& s.t. \quad \|v\| = 1 \quad \nabla g^T v \ge 0
\end{array}
```

And it is example code and result of my blog. I type backslash(`\`

) twice.

```
$v$ minimize bleow problem
$$ \\begin{array}{l} \\tag{2}
& \\min\_{v} \\nabla f^T v \\newline
& s.t. \\quad \\|v\\| = 1 \quad \\nabla g^T v \\ge 0
\\end{array} $$
and we can find $v$(return) with the code
```python
def norm_gradient_f_subject_to_g(grad):
if grad @ w.T <= 0: return grad /np.linalg.norm(grad, ord=2)
step_vec = grad @ mT_m
return step_vec / np.linalg.norm(step_vec, ord=2)
```
```

Although, I can escape markdown rule in code fences, If I use code fences there are some style problem. first, code fences create line numbers. second, I have javascript file that emmite code info tag(top-right `python`

decoration of the example) to `div.hilight`

element so and I include `<code>`

MathJax’s skipTag option.

I not want modify my javascript file and MathJax’s option and line numbers of code block is important for me .

Oh, I solve this problem just now. I just use simple shortcode(mytheme/layout/shortcode/formula.html)

```
$$ {{.Inner}} $$
```

and use it

```
{{<formula>}}
\begin{array}{l} \tag{2}
& \min_{v} \nabla f^T v \newline
& s.t. \quad \|v\| = 1 \quad \nabla g^T v \ge 0
\end{array}
{{</formula>}}
```

and result

shortcode inner value escape markdown rule.