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 for inline is: \( (y+\sqrt z)^{-1} \) and \( \sin^2 x^2 \). And, a displayed equation is: $$\frac 2 3$$
Another displayed equation is here:
\[
\forall x \exists y (x\le y \land y\le x \leftrightarrow x=y) .
\]
\[
\vec \Phi ( \vec r) = -\frac{G M_1}{| \vec{r}-\vec r_1 |}
\]
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.
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