https://github.com/reity/summations-py

Library to enumerate all natural number lists with a target sum.
https://github.com/reity/summations-py

combinations enumeration exhaustive-search mathematics python-library

Last synced: 29 days ago
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Library to enumerate all natural number lists with a target sum.

• Host: GitHub
• URL: https://github.com/reity/summations-py
• Owner: reity
• License: mit
• Created: 2019-12-05T05:44:41.000Z (about 5 years ago)
• Default Branch: master
• Last Pushed: 2019-12-05T06:36:25.000Z (about 5 years ago)
• Last Synced: 2024-11-01T11:19:05.638Z (about 2 months ago)
• Topics: combinations, enumeration, exhaustive-search, mathematics, python-library
• Language: Python
• Homepage: https://pypi.org/project/summations
• Size: 3.91 KB
• Stars: 0
• Watchers: 2
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.rst
  • License: LICENSE

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README

        
==========

summations

==========

Library to enumerate all natural number lists with a target sum.

.. image:: https://badge.fury.io/py/summations.svg

   :target: https://badge.fury.io/py/summations

   :alt: PyPI version and link.

Purpose

-------

This library allows programmers to create a generator for all the lists of natural numbers that add up to a target sum.

Package Installation and Usage

------------------------------

The package is available on PyPI::

    python -m pip install summations

The library can be imported in the usual way::

    import summations

    from summations import summations

Testing

-------

The library comes with a number of tests::

    nosetests

Examples

--------

An example of usage is provided  below::

    >>> from summations import summations

    >>> sorted(list(sum_len(5, 3)))

    [(0, 0, 5), (0, 1, 4), (0, 2, 3), (0, 3, 2), (0, 4, 1), (0, 5, 0),

     (1, 0, 4), (1, 1, 3), (1, 2, 2), (1, 3, 1), (1, 4, 0), (2, 0, 3),

     (2, 1, 2), (2, 2, 1), (2, 3, 0), (3, 0, 2), (3, 1, 1), (3, 2, 0),

     (4, 0, 1), (4, 1, 0), (5, 0, 0)]