numpy
NumPy is the fundamental package for scientific computing with Python. It contains among other things:
* a powerful N-dimensional array object
Besides its obvious scientific uses, NumPy can also be used as an efficient multi-dimensional container of generic data. Arbitrary data-types can be defined. This allows NumPy to seamlessly and speedily integrate with a wide variety of databases.
Cool points of numpy
Numpy can handle arrays with missing or invalid entries
Various ways of indexig
Official documents
Routines grouped by functionality
NumPy Reference
dtype
Data types
Data type objects (dtype)
numpy.dtype
evaluates the Einstein summation convention on the operands.]
Turorial
NumPy Cheat Sheet: Data Analysis in Python (article) - DataCamp
Numpy FAQ | Xdev
Subpages