scipy
The SciPy library is one of the core packages that make up the SciPy stack. It provides many user-friendly and efficient numerical routines such as routines for numerical integration, interpolation, optimization, linear algebra and statistics.
https://www.scipy.org/scipylib/index.html
Official documents
Reference Guide
https://docs.scipy.org/doc/scipy/reference/
Tutorials/Summaries/Wikis
SciPy Cheat Sheet: Linear Algebra in Python (article) - DataCamp
https://www.datacamp.com/community/blog/python-scipy-cheat-sheet
Subpages
scipy.optimize
scipy.stats
scipy.cluster
scipy.signal
scipy.io
scipy.fftpack