[O] Math equations in html export

[Orm Finnendahl]

Hi,

 I can't seem to get Math equations exported correctly to html from an
org file. Can someone provide me with a full example?

I set

#+OPTIONS: tex:t    

on top of the org file and tried these things, but they all render
literally:

$X^2$

$$X^2$$

\(x^2\)

\[x^2\]

I know the former two are not recommended, but I tried them
nevertheless. I could imagine I have to set some options/variables,
but I don't know which. Can someone help?

--
Orm