Welcome to the SymPy wiki!

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Note, there are a bunch of pages in this wiki that are not linked to from here. See them all here.

SymPy Home | Mailing list | Download | Documentation | Issues | Release Notes | Planet SymPy (blogs) |

SymPy is a computer algebra system (CAS) written in the Python programming language. SymPy is easy to use and install (see the download instructions and tutorial for more information), and works everywhere where Python 3.8 or newer is installed (Linux, Windows, Mac OS X, ...). SymPy's features include:

• Arbitrary precision integers, rationals and floats, as well as symbolic expressions
• Simplification (grouping like a*b*b + 2*b*a*b → 3*a*b**2, expansion like expand((a + b)**2) → a**2 + 2*a*b + b**2, and other methods of rewriting expressions (cancel, factor, collect, etc...)
• Functions (exp, log, sin, ...)
• Complex numbers (like exp(I*x).expand(complex=True) → cos(x)+I*sin(x))
• Taylor (Laurent) series and limits
• Differentiation and integration

Documentation ============

The main SymPy documentation is maintained at http://docs.sympy.org (where you can see both the development and the latest stable versions docs). The full change log can be viewed here.

The issue tracker is located at http://github.com/sympy/sympy/issues.

The best place to begin is the Tutorial. A lot of useful information can also be found in the following:

• FAQ -- Frequently Asked Questions about SymPy
• Quick examples -- This page shows example commands for doing common calculations in SymPy
• Cookbook -- Various recipes
• Presentations -- Slides, tutorials and posters from conferences
• SymPy Papers -- Academic and white papers written about or using SymPy.
• External SymPy Media, Tutorials, and Presentations -- Learning materials written by others.
• SymPy in the news -- SymPy in the News and Blogs
• Related software -- projects related to SymPy
• Comparison to popular CAS's -- Axiom, Magma, Maple, Mathematica, Matlab, Maxima, Sage, Yacas

• Introduction to Contributing -- how to get started as a contributor
• Getting The Bleeding Edge -- how to get the latest development version of sympy
• Running tests -- how to test the code and examples in documentation
• Debugging -- useful when debugging more complex parts of SymPy
• Development workflow -- how to send a patch
• Windows development using git -- SymPy on Windows
• Jupyter Workflow -- Tips for using Jupyter Notebooks
• Pushing patches -- Guide for people who get push access to the official git repo
• Writing documentation -- how to write docstrings, tutorials etc.
• Adding Someone to AUTHORS -- details about how .mailmap works and tools for monitoring authors
• Using .mailmap
• Deprecating policy -- deprecating an existing method/function/class
• Python Version -- what Python versions we support and how long we do
• git hg rosetta stone -- direct translation of hg commands to git
• Sage Symbench -- Symbolic benchmarks
• buildbot -- SymPy buildbot
• Contributors -- list of all contributors and sponsors of SymPy

• Roadmap -- Our roadmap to SymPy 1.0
• Ideas -- Random ideas, not necessarily related to SymPy, but that could be useful for SymPy in the future
• Generic interface -- SymPy/SymPyCore design notes
• Technical References -- Related mathematical literature and websites
• Test automation -- Wishlist scratchpad for streamlining the test suite
• Unit systems -- Some ideas to improve unit systems.

GSoC Ideas

For Students:

• GSoC 2019 Student Instructions -- How to get started with an application.
• GSoC 2019 Ideas -- Ideas for Google Summer of Code projects
• GSoC 2019 Application Template -- The template for student applications for Google Summer of Code
• GSoC 2019 Current Applications -- A list of active proposals. Link your GSoC 2019 Project Proposal here

For Mentors:

• GSoC 2019 Mentor Instructions -- Mentors need help too.
• GSoC 2019 Organization Application -- Our application to be an organization for Google Summer of Code
• GSoC 2019 Report -- Report for the GSoC 2019

For Students:

• GSoC 2018 Student Instructions -- How to get started with an application.
• GSoC 2018 Ideas -- Ideas for Google Summer of Code projects
• GSoC 2018 Application Template -- The template for student applications for Google Summer of Code
• GSoC 2018 Current Applications -- A list of active proposals. Link your GSoC 2018 Project Proposal here

For Mentors:

• GSoC 2018 Mentor Instructions -- Mentors need help too.
• GSoC 2018 Organization Application -- Our application to be an organization for Google Summer of Code
• GSoC 2018 Report -- Report for the GSoC 2018

For Students:

• GSoC 2017 Student Instructions -- How to get started with an application.
• GSoC 2017 Ideas -- Ideas for Google Summer of Code projects
• GSoC 2017 Application Template -- The template for student applications for Google Summer of Code
• GSoC 2017 Current Applications -- A list of active proposals. Link your GSoC 2017 Project Proposal here

For Students:

• GSoC 2016 Student Instructions -- How to get started with an application.
• GSoC 2016 Ideas -- Ideas for Google Summer of Code projects
• GSoC 2016 Application Template -- The template for student applications for Google Summer of Code
• GSoC 2016 Current Applications -- A list of active proposals. Link your GSoC 2016 Project Proposal here

For Mentors:

• GSoC 2016 Mentor Instructions -- Mentors need help too.
• GSoC 2016 Organization Application -- Our application to be an organization for Google Summer of Code
• GSoC 2016 Report -- Report for the GSoC 2016

For Students:

• GSoC 2015 Student Instructions -- How to get started with an application.
• GSoC 2015 Ideas -- Ideas for Google Summer of Code projects
• GSoC 2015 Application Template -- The template for student applications for Google Summer of Code
• GSoC 2015 Current Applications -- A list of active proposals. Link your GSoC 2015 Project Proposal here

For Mentors:

• GSoC 2015 Mentor Instructions -- Mentors need help too.
• GSoC 2015 Organization Application -- Our application to be an organization for Google Summer of Code
• GSoC 2015 Report -- Report for the GSoC 2015

• GSoC 2014 Ideas -- Ideas for Google Summer of Code projects
• GSoC 2014 Organization Application -- Our application to be an organization for Google Summer of Code 2014
• GSoC 2014 Application Template -- The template for student applications for Google Summer of Code
• GSoC 2014 Current Applications -- A list of active proposals. Link your GSoC 2014 Project Proposal here
• GSoC 2014 Report -- Report for the GSoC 2014

• GSoC 2013 Ideas -- Ideas for Google Summer of Code projects
• GSoC 2013 Organization Application -- Our application to be an organization for Google Summer of Code 2013
• GSoC 2013 Application Template -- The template for student applications for Google Summer of Code
• GSoC 2013 Current Applications -- A list of active proposals. Link your GSoC 2013 Project Proposal here
• GSoC 2013 Report -- Report for the GSoC 2013

• GSoC 2012 Ideas -- Ideas for Google Summer of Code projects
• GSoC 2012 Organization Application -- Our application to be an organization for Google Summer of Code 2012
• GSoC 2012 Application Template -- The template for student applications for Google Summer of Code
• GSoC 2012 Current Applications -- A list of active proposals. Link your GSoC 2012 Project Proposal here
• GSoC 2012 Report -- Report for the GSoC 2012

• GSoC 2011 Ideas -- Ideas for Google Summer of Code projects
• GSoC 2011 Organization Application -- Our application to be an organization for Google Summer of Code 2011
• GSoC 2011 Application Template -- The template for student applications for Google Summer of Code
• GSoC 2011 Current Applications -- A list of active proposals. Link your GSoC 2011 Project Proposal here
• GSoC 2011 Report -- Report for the GSoC 2011

• GSoC Previous Applications -- Some examples of successful Google Summer of Code applications from 2009 and 2010
• GSoC 2010 Report -- Report for the GSoC 2010
• GSoC 2009 Report -- Report for the GSoC 2009
• GSoC 2008 Report -- Report for the GSoC 2008
• GSoC 2007 Report -- Report for the GSoC 2007

• GCI 2012 Landing -- Landing page for students who participated in Google Code-In 2012 with SymPy
• GCI 2012 Organization Application -- Our application to be an organization for Google Code-In 2012

• GCI 2011 Landing -- Landing page for students who participated in Google Code-In 2011 with SymPy
• GCI 2011 Mentors -- Mentors for the Google Code In 2011
• GCI 2011 Organization Application -- Our application to be an organization for Google Code In 2011
• CGI 2011 Task list (spreadsheet) -- Our task list for Google Code In 2011
• GCI 2011 Task list (wiki)

• GHOP 2007 -- Landing page for students who participated in Google Highly Open Participation contest 2007 with SymPy

There are many pages copied here from the old Google code wiki. These should be updated and reformatted for github. They can be found by going here. and looking for the pages starting with "old wiki". When these are updated, the header should be changed and the file moved to remove the "old wiki" designation.

License SymPy =======

Unless stated otherwise, everything on this wiki is licensed under the same terms as SymPy, i.e. modified BSD license. This is so that we can take anything from here and add it to the SymPy tarball as a documentation. See License choice for the motivation and discussion behind that choice.

If you have some interesting material, that you don't want to (or cannot) make BSD licensed, please put there a notice, that it has some other license.