# Math expressions

MathJax examples.

## simple

$\alpha+\beta=\gamma$

## The Lorenz Equations

\begin{aligned} \dot{x} & = \sigma(y-x) \ \dot{y} & = \rho x - y - xz \ \dot{z} & = -\beta z + xy \end{aligned}

## Coins

The probability of getting $$k$$ heads when flipping $$n$$ coins is $P(E) = {n \choose k} p^k (1-p)^{ n-k}$

## An Identity of Ramanujan

$\frac{1}{\Bigl(\sqrt{\phi \sqrt{5}}-\phi\Bigr) e^{\frac25 \pi}} = 1+\frac{e^{-2\pi}} {1+\frac{e^{-4\pi}} {1+\frac{e^{-6\pi}} {1+\frac{e^{-8\pi}} {1+\ldots} } } }$

Author: Jim Hester Created: 2013 Apr 01 03:27:26 PM Last Modified: 2013 Oct 16 03:49:22 PM