These are notes from ISSYP, a theoretical physics summer school for high school students at Perimeter Institute.

• Day 1: Standard cosmological model, Gaussian random variables

• Day 2: Expanding universe, differential equations

• Day 3: Python intro, numerically integrating differential equations

• Day 4: Project

Here is a link for running small python notebooks online: http://tmpnb.org

• To start a new notebook, click "New" -> "Python 2"

• To save a notebook, I suggest first doing "Rename..." to give it a name other than "Untitled". Then do "File" -> "Download As" -> "Notebook (.ipynb)"

  Note: On my apple laptop, the saved file ends up in the "Downloads" directory.

• To load an old notebook, go to tmpnb.org and do "Upload" instead of "New".

If you want to learn the python language more systematically, here is a nice online textbook! http://openbookproject.net/thinkcs/python/english2e/