An IJulia Notebook

This is an IJulia notebook, which is just like an IPython notebook, and is based on the same Jupyter engine and protocol, except that the code is executed by a Julia kernel rather than a Python kernel.

Like an IPython notebook, it can mix code, multimedia results, headings, documentation, equations like $\sqrt{\int x^2 dx}$, and even interactive widgets.

Julia and IJulia examples: