Here I want to try out mathJax in a blog.
$$\sqrt{\vphantom{I}} n \bigl(\hat\theta_{\text{MLE}}-\theta_0\bigr)~\Rightarrow ~ \mathcal N\,\bigl(\, 0\,, \mathcal I(\theta_0)^{-1}\bigr)$$
That was a test of MathJax: properly displayed (?) mathematical formulas written in standard LaTeX. Please let me know how well it displays - if at all - in your browsers. The html code of the above formula consisted of the following ordinary LaTeX code, between double dollarsigns:
\sqrt{\vphantom{I}} n\bigl(\hat\theta_{\text{MLE}}-\theta_0\bigr)~\Rightarrow ~ \mathcal N\,\bigl(\, 0\,, \mathcal I(\theta_0)^{-1}\bigr).
The results on my MacBook: Safari - appalling; Firefox - excellent; Chrome - appalling; Opera - good ... till I replaced \sqrt{n} with the construction \sqrt{\vphantom{I}} n. That converted "appalling" to "poor". Neither Safari nor Chrome seem to know that text , numerals and Greek symbols are not usually italic, inside of mathematics. Safari on iPad is good.
Here's another example: Dorota Dabrowska's product limit representation of a multivate survival function,
$$
\Pr(T_E\gg t_E)~=~\prod_{A\subseteq E}\,\,\prod_{s_A\in(0_A,t_A]}\, \Biggl(\prod_{B\subseteq A}\Pr\Bigl(T_{A\setminus B}\gg
s_{A\setminus B}\Bigm|T_A\ge s_A\Bigr)^{(-1)^{|B|}}\Biggr)
$$
The whole thing is set up by including the following instructions to run a java script:
< script type="text/javascript" src="http://cdn.mathjax.org/mathjax/latest/MathJax.js?config=TeX-AMS-MML_HTMLorMML">
< /script>
I added a space after the left-angle-bracket so that the html tags would not be recognised as such!
