Some math equations not rendered correctly

[hyungjin-chung]

I'm trying to use math equations in posts written with markdown, and I'm not sure why some of them are not rendered correctly whereas others seems to work perfectly fine. Below are some of the examples that does not work:

$$
\mathbb{E}{\theta}[\theta] = \mathbb{E}{\mathcal{D}}[\mathbb{E}_{\theta}[\theta|\mathcal{D}]]
$$

, which is rendered directly as

$$ \mathbb{E}{\theta}[\theta] = \mathbb{E}{\mathcal{D}}[\mathbb{E}_{\theta}[\theta|\mathcal{D}]] $$

$$
\mathbb{E}{\mathcal{D}} [\mathbb{E}{\theta [ \theta | \mathcal{D} ]}] = \int { \int \theta p( \theta | \mathcal{D} ) d \theta } p(\mathcal{D}) , d \mathcal{D}
$$

This one is also directly shown.

I was wondering if functions like \mathbb{} or \mathcal{} are not supported, but these functions work perfectly fine at other situations. Is this a bug?

site: http://www.hj-chung.com/post/law-of-total-expectation/

[gcushen]

Wowchemy uses MathJax to render math: http://docs.mathjax.org/en/latest/

Both of your equations appear to render fine for me when writing them in the page body using the latest Wowchemy version and math enabled in params.yaml/params.toml.

If you try writing them in the front matter instead of in the page body, they may need escaping: https://wowchemy.com/docs/content/writing-markdown-latex/#rm-latex-math

Also, if you use Blogdown, you may need to disable Blogdown's math processing which can render math as code.