| 1 | Learning Python, Mark Rutz, 4th Ed. 2009 |
| 2 | Beginning Python, Peter Norton, Alex Samuel, David Aitel, Eric Foster-Johnson, Leonard Richardson, Jason Diamond, Aleatha Parker, Michael Roberts, 2005, Wiley Publications |
| 3 | https://www.cfm.brown.edu/people/dobrush/am33/SymPy/index.html |
| 4 | https://numpy.org/doc/2.0/index.html |