This is a test of using MathJax in Blogger Note that enclosing math in single $'s does not work in the default setting for MathJax. However, you may use "\(\backslash(\)" and "\(\backslash)\)" for inline math and double dollar signs or "\(\backslash[\)" and "\(\backslash]\)" for displayed math. Examples: $(y+\sqrt z)^{-1}$ and \( \sin^2 x^2 \). And, a displayed equation is: $$\frac 2 3$$

Another displayed equation is here:

\[

\forall x \exists y (x\le y \land y\le x \leftrightarrow x=y) .

\]

To setup the MathJax capability, I added the following line to the HTML code, after the <head> command (as a single line, no line break):

<script src='http://cdn.mathjax.org/mathjax/latest/MathJax.js?config=TeX-AMS-MML_HTMLorMML' type='text/javascript'/>

You can find more information from the MathJax website about this at http://www.mathjax.org/docs/1.1/start.html.

For slightly different ways to set up MathJax with Blogger, see http://holdenweb.blogspot.com/2011/11/blogging-mathematics.html, or

http://irrep.blogspot.com/2011/07/mathjax-in-blogger-ii.html.