How do you put text below other text?

Question

I need to write the expression meaning optimize over the parameter set. I think I should write something like ``` $\arg \max_{\substack{w \ \phi}} f(w,\phi)$ ``` but this puts the subscript below at the right of \max and I'd like to put those subindexes below and centered on the max word. Which command should I use? Thanks in advance.

Accepted Answer

Have you tried display mode math instead of text mode math. That is, try either:

```
$\displaystyle\arg \max_{\substack{w \ \phi}} f(w,\phi)$
```

Or try:

```
$$ \arg \max_{\substack{w \ \phi}} f(w,\phi) $$
```

How do you put text below other text?

Solution

Problem