Just a quick test of MathJax for posting mathematics on my blog:
Here is an inline equation: $\sin^2(x)+\cos^2(x)=1$.
Here is a displayed equation: \[\frac{\pi}{2}.\]
Here is an inline equation: $\sin^2(x)+\cos^2(x)=1$.
Here is a displayed equation: \[\frac{\pi}{2}.\]