To run the code, you need to have Python 2 or 3 installed, together with NumPy
and Matplotlib packages.

The code was tested on Ubuntu 18.04 Intel(R) Core i7-8550U CPU @ 1.80GHz using:
  - Python 2.7.15, 3.5.5,
  - NumPy 1.14.5,
  - Matplotlib 2.2.2.

You can run the code with `python runme.py` in the terminal.
