NumPy Reference

Release: 1.14
Date: June 12, 2018

This reference manual details functions, modules, and objects included in NumPy, describing what they are and what they do. For learning how to use NumPy, see also NumPy User Guide.


Large parts of this manual originate from Travis E. Oliphant’s book Guide to NumPy (which generously entered Public Domain in August 2008). The reference documentation for many of the functions are written by numerous contributors and developers of NumPy, both prior to and during the NumPy Documentation Marathon.

Please help to improve NumPy’s documentation! Instructions on how to join the ongoing documentation marathon can be found on the website

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Licensed under the 3-clause BSD License.