Read [[https://docs.python.org/3/tutorial/index.html|the official tutorial]] or [[https://www.cmi.ac.in/~madhavan/courses/prog2-2012/docs/diveintopython3/|a book]] if you have no experience with Python.

 1. be aware that there are accuracy issues with floating-point arithmetic
  * https://en.wikipedia.org/wiki/Floating-point_arithmetic#Accuracy_problems
  * https://docs.python.org/3/tutorial/floatingpoint.html
  * https://docs.python.org/3.6/library/decimal.html
  * https://www.sympy.org
  * http://mpmath.org

 1. review [[https://www.tutorialspoint.com/python3/python_basic_operators.htm|the operators]]

 1. be aware of the built-in functions: all, any, divmod, map, max, min, print, reverse, round, sum
  * https://docs.python.org/3/library/functions.html

 1. be aware of the included modules:
  * https://docs.python.org/3.6/library/math.html
  * https://docs.python.org/3.6/library/statistics.html
  * https://docs.python.org/3.6/library/decimal.html
  * https://docs.python.org/3.6/library/fractions.html
  * https://docs.python.org/3.6/library/itertools.html

 1. read the [[https://docs.python.org/3/tutorial/controlflow.html|control flow section]] of the [[https://docs.python.org/3/tutorial/index.html|official tutorial]]

 1. read about [[https://docs.python.org/3.6/tutorial/datastructures.html#list-comprehensions|list comprehensions]]

Investigate:

 * http://www.sagemath.org
 * https://scipy.org
 * https://www.spyder-ide.org/
 * https://github.com/jupyter/qtconsole (ipython)
 * https://wiki.python.org/moin/NumericAndScientific

Examples:

 * https://pymotw.com/3/math/
 * https://pymotw.com/3/statistics/
 * http://rosettacode.org/wiki/Category:Mathematics
 * http://rosettacode.org/wiki/Category:Geometry
 * https://code.activestate.com/recipes/tags/mathematics/
 * https://code.activestate.com/recipes/tags/math
 * https://stackoverflow.com/questions/tagged/python+math
 * https://en.wikibooks.org/wiki/Mathematics_with_Python_and_Ruby/Fractions_in_Python

Q&A:

 * https://stackoverflow.com/questions/tagged/python
 * https://python-forum.io
 * https://mail.python.org/pipermail/python-list/