There are posts in TeX.SE that shows how argmin and argmax with limits can be typesetted using the \DeclareMathOperator* command. But how to do this in Markdown?
I am especially interested in doing this in Jupyter Notebook when I'm documenting in Markdown.
Is this possible?
Maybe this is what you look for
$ \hat{\theta}^{MLE}=\underset{a}{\operatorname{\argmax}} P(D|\theta) = \frac{a_1}{a_1+a_0} $
The trick is done by \underset, which put a character under an expression, as you see below.
Anyway, I see widely used the simple underscore expression, along with \argand \max, as you see below.
If you want to know something more about the many ways you can choose, take a look at here: Command for argmin or argmax?
Hope to be helpful
This worked for me when using pandoc for markdown-to-PDF conversion. (The subscript 'a' is correctly placed underneath the 'argmin'):
---
header-includes:
- \newcommand{\argmin}{\mathop{\mathrm{argmin}}\limits}
---
Some text.
$A = \argmin_a f(a)$