Testing zone
Python:
def f(n): return n**2HTML:
<!DOCTYPE html><html lang="en"><head><script> // Just a lil’ script to show off that inline JS gets highlighted window.console && console.log('foo');</script><meta charset="utf-8" /><link rel="icon" href="assets/favicon.png" /><title>Prism</title><link rel="stylesheet" href="assets/style.css" /><link rel="stylesheet" href="themes/prism.css" data-noprefix /><script src="assets/vendor/prefixfree.min.js"></script><script>var _gaq = [['_setAccount', 'UA-33746269-1'], ['_trackPageview']];</script><script src="https://www.google-analytics.com/ga.js" async></script></head><body>Some $\LaTeX$:
\begin{document}\textbf{Hello world}$$f(x) = \frac{x}{x-1}$$\end{document} \begin{document}\textbf{Hello world}$$f(x) = \frac{x}{x-1}$$\end{document} Markdown
**bold** *italics*Mathjax done in a Markdown block:
$$x^2 + y^2 + z^2$$
A power series: $e^x = \sum_{n=0}^\infty \frac{x^n}{n!}$
Copy/pasting this outside the Markdown block:
$$x^2 + y^2 + z^2$$
A power series: $e^x = \sum_{n=0}^\infty \frac{x^n}{n!}$