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Sage Days are gatherings of people interested in SageMath, from newcomers to contributors. Sage Days are organized by a wide range of people around the globe.

Upcoming Workshops

• Sage Days 120 — hybrid online and co-located with FPSAC, July 16–21, 2023, Davis, Calif., USA

• Women in Sage - Uganda - September 4-8, 2023, Makerere University , Kampala - Uganda

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• https://sites.google.com/must.ac.ug/wis-uganda/home][Women in Sage - Uganda - September 4-8, 2023, Makerere University , Kampala - Uganda

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General Information

• Hosting --- Advice to future hosts

• Bug Days Mailing List

• How to spread sage during a workshop

Past Workshops

• Sage Days 1: UCSD

• Sage Days 2: UW

• Sage Days 3: IPAM

• Sage Days 4: Seattle

• Sage Days 5 -- Computational Arithmetic Geometry: Clay Math Institute, September 30 - October 3, 2007.

• Sage Days 6 -- Cryptography, Arithmetic Geometry: Heilbronn Institute, November 10 - 14, 2007.

• AMS Booth 2008: -- booth at the AMS meeting in San Diego (coding sprints)

• Sage Days 7 -- Combinatorics: -- IPAM, Feb 5--9, 2008.

• Sage Days 8 -- Enthought, Austin, Texas, Feb 29--March 4, 2008.

• Developer Days 1 (aka Sage Days 8.5) --- UW Seattle, June 13 -- 20, 2008.

• Sage Days 9 --- Vancouver, Aug 9 -- 16, 2008.

• Scipy 2008 -- Caltech, August 19 -- 24, 2008.

• Sage Days 10 --- Nancy (France), Oct 10 -- 15, 2008.

• Sage Days 11 -- Austin Texas, November 7 -- 10, 2008.

• Sage Events at the national AMS-MAA joint meeting in Washington DC, Jan 5-8, 2009:

  • Sage and Mathematical Research -- AMS Special Session.

  • Sage and Teaching -- MAA Panel discussion on open source software in math education.

  • Exhibit Booth -- Sage in the exhibition hall.

• Sage Days 12 -- San Diego, Wed-Sat, Jan 21--24, 2009.

• Sage Days 13 -- Quadratic Forms and Lattices --- Athens, Georgia, Feb 28 -- March 2, 2009.

• Sage Days 14 -- MSRI (Berkeley, CA), March 9--12, 2009, Official MSRI Page.

• Sage Days 15 -- Seattle, WA, May 16 -- 21, 2009.

• Sage Days 16 -- CRM-UPC, Barcelona, June 22--27, 2009.

• *-Combinat days or Free and Practical Software for Algebraic Combinatorics, RISC, Linz, Austria, July 25-29, 2009

• Sage Days 17 -- Lopez island near Seattle (September 14--20, 2009); theme: Modular forms and L-functions

• Sage Days 18 -- Cambridge, MA (December 1-5, 2009); theme: Number theory (funded by the Clay Math Institute and MIT); to include a Sage Education Day on December 5

• Sage Days 19 -- Seattle, WA (at Shuey House Mansion, January 16-20, 2010); theme: fixing bugs (funded by the NSF and Stein's startup money)

• Sage Days 20 -- Marseille, France (February 22-26, 2010); theme: Combinatorics

• Sage Days 20.25 -- Montreal, Canada (March 22-26, 2010); theme: Computer Methods for L-functions and Automorphic Forms

• Sage Days 20.5 -- Toronto, Canada (May 3-7, 2010); theme: Algebraic Combinatorics, Representation Theory of Algebras

• Sage Days 21 -- Seattle, WA (May 24 - 28); theme: Function fields (funding TBA)

• Sage-Combinat / Chevie developers meeting -- Orsay, France (June 14-18, 2010); theme: Combinatorics, Coxeter groups (funded by University of Paris Sud)

• Sage Days 22 -- Berkeley, CA (June 21 to July 2, 2010); theme: Elliptic Curves (funded by MSRI)

• Sage Days 23 -- Leiden, Netherlands (July 5-9, 2010); theme: Number theory (funded)

• Sage Days 23.5 -- Kaiserslautern, Germany (July 14-16, 2010); theme: Singular and Sage (funded by the Singular group)

• Sage Days 24 -- Linz, Austria (July 17-22, 2010); theme: Differential Algebra, Special Functions (funded by RISC)

• Sage Days 25 -- Mumbai, India (August 9-12, 2010); funded by India

• Sage Days 25.5 -- LaCIM, Montréal, Canada (September 1st, 2010); theme: Introduction to Sage and Combinatorics

• Sage Days 26 -- Seattle, Washington (December 7-10, 2010); theme: Women in Sage (funded by Microsoft)

• Joint Math Meetings 2011 -- New Orleans, LA (January 5-8, 2011); exhibit booth

• Sage Days 27 -- Seattle, Washington (January 7-13, 2011); theme: fixing bugs

• Sage Days 28 -- Orsay, France (January 17-18, 2011); theme: dynamics and geometry

• Sage Days 29 -- Seattle, Washington (March 21-25, 2011); theme: fixing bugs

• Sage Days 30 -- Acadia University, Nova Scotia, Canada (May 2-6, 2011); theme: combinatorics

• Sage Days 31 -- Seattle, Washington (June 13-17, 2011); theme: Sage Notebook

• Sage Education Days 3 -- Seattle, Washington (June 16-18, 2011) (funded by NSF)

• Sage Days 32 -- Seattle, Washington (August 21-25, 2011); theme: fixing bugs

• Sage Days 33 -- Seattle, Washington (September 19-23, 2011); theme: Women in Sage

• Sage Days 34 -- Kaiserslautern, Germany (September 26-30, 2011); theme: Singular and Sage

• Sage Days 34.5 -- Bobo Dioulasso, Burkina Faso (October 31-November 04, 2011)

• Sage Days 35: Sage-Flint Days, Warwick UK, 17-22 December 2011

• Joint Mathematics Meeting Sage Booth, in Boston, MA Jan 4-7, 2011

• Sage Short Course at the JMM in Boston, in Boston, MA Jan 2-3, 2011

• Sage Days 35.5: January 9-11 2012, Wenham, MA; theme: fixing and reviewing bugs, symbolics, graphics, notebook

• Sage-Combinat days in Cernay 2012: February 6-10 2012, Cernay-La-Ville south-west of Paris, France; theme: combinatorics, review and infrastructure

• Sage Notebook Days 1: Feb 10-12, 2012, Seattle, Washington

• Sage-Combinat Days 35.8: February 8-10, 2012, Hannover, Germany: Sage and the cluster algebra package. Contact: Christian Stump, [email protected]

• Sage Days 36: p-adics in Sage, UC San Diego, February 19-23, 2012

• Sage Days 36.5: April 17-22, University of Washington, Seattle WA.

• Sage Days 37: 28 April 2012, Sookmyung Women's University, Seoul, South Korea.

• Sage Days 38: May 7-11 2012, Centre de recherches mathématiques, Montréal, Canada.

• Sage Days 39: May 26-27 2012, Kyushu University, Fukuoka, Japan.

• SAGE-Combinat Days 40: July 9-13, 2012 at the IMA, in Minneapolis, MN. Contact: Gregg Musiker, [email protected]

  • Projects Tutorials

• Sage Days 40.5: Bug Days: May 24-29 2012, Wallace Falls Lodge, near Seattle WA.

• Sage Days 41: Notebook Development, June 11-15, 2012, University of Washington, Seattle.

• Sage Days 42: Women in Sage 3, July 15-19, 2012, Wallace Falls Lodge, Seattle, WA.

• Sage Days 43 October 29 - November 9, 2012 : Sage days during CIMPA research school at Bobo Dioulasso, Burkina Faso.

• Online databases: from L-functions to combinatorics, Edinburgh, Scotland, UK, January 21-25, 2013,

• Sage Days 44, University of Wisconsin, Madison, WI, January 31-February 3, 2013

• Sage Days 45: Multiple Dirichlet series, combinatorics, and representation theory, ICERM, Brown, RI, February 11-15, 2013

  • Projects

• Sage Days 46: Computational number theory, Hawaii, February 26-March 2, 2013

• Sage Days 47: Transitioning to Git, March 25-29, 2013, Portland State University

• Semester Program on "Automorphic Forms, Combinatorial Representation Theory and Multiple Dirichlet Series", ICERM, Brown, RI, January 28, 2013 - May 3, 2013

• FLINT Developers Meeting, Warwick University, UK, May 4-May 12, 2013

• Sage Day 47.5, Montreal, May 28, 2013

• Sage Days 48, Notebook Dev (June 17-21, 2013), Univ of Washington, Seattle

• Sage Days 49: Free and Practical Software for (Algebraic) Combinatorics (satellite of the FPSAC conference), Paris, France, June 17-21, 2013

• Sage Days 50: Women in Sage 4, Seattle, July 10 - 15, 2013

• Sage Days 51: Algorithms in Arithmetic Geometry (July 22-26, 2013), Lorentz Center (Leiden, the Netherlands)

• Sage Days 52: Arithmetics over DVR (e.g. p-adics), September 2-6, 2013, Université Rennes 1, France

• Sage Days 53 Computational Number Theory, Geometry, and Physics, September 23-29 2013, University of Oxford

• Sage Days 53.5 October 5 2013, Shinshu University, Japan.

• Sage Days 54 Sage Developer Days, November 4-8, 2013, University of California Davis

• Sage Days 55 Arithmetic and Complex Dynamics, November 7-10, 2013, Florida Institute of Technology, Melbourne, FL.

• Sage Days 56: Computational Number Theory and the Cloud, January 2-7, 2014, Hawaii.

• Sage Days 57: Sage-Combinat Days in Cernay-la-Ville, near Paris, France (April 6-12, 2014).

• Sage Edu Days 6: University of Washington, Seattle (June 16-18, 2014).

• Sage Days 58: Sage on the Web, University of Washington, Seattle (June 16-20, 2014).

• Sage Days 59: Bugs Days, Seattle (June 21-30, 2014).

• Sage Days 60: Combinatorics and Representation Theory (August 14-17, 2014), The Institute of Mathematical Sciences, Chennai, India.

• Sage Days 61: Quaternion Orders and Brandt Modules (August 25-29, 2014), Copenhagen, Denmark. -- official website

• Sage Days 62: Women In Sage 5 (July 28-August 1, 2014), Portland, Oregon.

• Sage Grant Days 62.5: Preparatory meeting for a Sage Ecosystem H2020 European grant application (Sept 8-9, 2014), Université Paris Sud, France

• Sage Days 63: (Oct 12-13, 2014), Shinshu university, Matsumoto, Japan.

• Sage Days 64: Sage days on algebraic combinatorics (March 17-20, 2015), UC Davis, California.

• Sage Days 64.25: (May 23-27, 2015) Sage Days in San Diego. Contact: William Stein, [email protected]

• Sage Days 64.5: June 1-5, 2015) Cluster Algebras at IMA, in Minneapolis, MN. Contact: Gregg Musiker, [email protected]

• Sage Days 65: (June 8-12, 2015) Crystals for (affine) Lie algebras, and combinatorial Hopf algebras, Loyola University Chicago -- official website

• Sage Days 66: Sage Days (March 30 - April 2nd, 2015), Université de Liège, Belgium. Contact: Sébastien Labbé

• Sage Days 67: (April 13-16 2015) satellite event of PyCon 2015, Montreal. Contact: Viviane Pons [email protected]

• Sage Days 68: (August 21-27, 2015) Bug Days, San Juan Islands. Contact: William Stein, [email protected]

• Sage Days 69: (September 4-9, 2015) Women in Sage 6, San Diego. Contact: Jennifer Balakrishnan, [email protected]

• Sage Days 70: (November 9-13, 2015, Berkeley) Sage, SageMathCloud and Jupyter

• First joint GAP-Sage days (Sage Days 70.5) -- St Andrews (Scotland), 2016-01-18 -- 2016-01-22.

• Sage Days 71: (March 20-24, 2016, Oxford) Explicit p-adic methods in number theory

• Sage Days 72: (May 21-22, Prague, Czech Republic) Satellite event of Numeration 2016

• Sage Days 73: (May 04-07, 2016, Oaxaca (Mexico)) Translation surfaces

• Sage Days 74: (May 30 - June 02, 2016, CIAS, Meudon, France) Differential geometry and topology

• Sage Days 75: (August 22-26, 2016, Inria Saclay, Polytechnique Campus, Palaiseau, France) Algorithmic Coding Theory

• Sage Days 77: (April 04-08, 2016. Cernay, Paris area, France). Sage developer days on packaging, portability, documentation tools.

• Sage Days 78: (June 29 - July 1, Vancouver, BC Canada) Combinatorics, satellite to FPSAC2016

• Sage Days 79: (November 21-24, 2016, Jerusalem, Israel) Combinatorics and more, first Sage Days in Israel

• Sage Days 80: (April 07-12, 2016. Berlin, Germany). 5 days coding spring on reflection groups

• Sage Days 81: (August 14-25, 2016, Hawaii) Improving SageMath

• Sage Day 81.5: (October 26, 2016, University of California, Davis)

• Sage Days 82: (January 9-13, 2017, Paris area, France) Women in Sage

• Sage Days 83: (October 31 -- November 4, 2016, Marrakech, Morocco), Combinatorics, Knot Theory

• Sage Days 84: (February 27 - March 12, 2017, Olot, Spain) polytopes

• Sage Days 85: (March 13-17 2017, Cernay, France) Sage GAP developers days on packaging, portability, documentation tools

• Sage Days 86: (April 17-21, 2017, CRM, Montréal, Canada) Algebra and Words in Combinatorics

• Sage Days 86.5: (June 5-9, 2017, Simon Fraser University, Burnaby, Canada) PIMS Workshop on Computational Arithmetic Geometry

• Sage Days 87: (July 17-22, 2017, UVM, Burlington, VT, USA) p-adics in Sage and the LMFDB

• Sage Days 88: August 21-25, 2017) Opening Workshop for a Year of Coding Sprints at the IMA, in Minneapolis, MN. Contacts: Ben Brubaker, [email protected] or Gregg Musiker, [email protected]

• Sage Days 90: (October 22-25, 2017, Harvey Mudd College, Claremont, CA) Women in Sage

• Sage Days 91: (September 29 - October 1, 2017, BIRS, Banff, CA) Open Source Computation and Algebraic Surfaces

• Sage Days 92: (January 22--26, 2018, UNAM Morelia, Michoacán, Mexico)

• Sage Days 93: (February 19 -- March 4, Olot, Spain)

• Sage Days 93.5: (May 28 -- June 1, Saint Flour, France) seconde semaine de l'école MathExp2018

• Sage Days 93.51: (May 28 -- June 1, 2018, Berlin, Germany) 5 days coding spring on reflection groups.

• Sage Days 93.52: (June 15, 18, 22, Grenoble, France) Teichmüller theory

• Sage Days 94: (June 28-July 4, 2018, Zaragoza, Spain) School on Sage development.

• Sage Days 95: (July 9--13, 2018, Montréal, Canada) Women in Sage

• SageDays@ICERM: (July 23--27, 2018, Providence, RI, USA) Combinatorics and Representation Theory

• Sage Days 96: (August 13--16, Fields Institute, Toronto, Canada) Surface geometry and dynamics, Teichmüller theory

• Sage Days 97: (24--28 September 2018, FAMNIT, U Primorska, Koper, Slovenia) Software tools for mathematics

• Free computational mathematics -- Calcul mathématique libre -- February 11--15, 2019

• Sage Days 98 -- Women in Sage April 8 - 12, 2019 Archanes, Crete

• Sage Days 99 -- SageMath and Macaulay2 - An Open Source Initiative: Institute for Mathematics and its Applications, Minneapolis, July 22-26, 2019.

• Sage Days 100 -- Geometry and dynamics of surfaces June or July 2019, MPI Bonn Germany

• Sage-GAP Days 101: (June 17-21 2019, Cernay, France) Sage GAP developers days on packaging, portability, interfaces and documentation tools

• Sage Days 102 - University of Ibadan: (July 15-19, 2019, Ibadan, Nigeria) Sage Days Nigeria

• Women in Sage: Sage Days 103: August 7-9, 2019, St. Louis Missouri

• Sage Days 105 -- Free and Practical Software for Algebraic Combinatorics'19: (July 8--12, 2019, University of Ljubljana, Slovenia)

• Sage Days 104: Arithmetic Dynamics: November 17-20, 2019, St. Louis University, Saint Louis, MO

• Sage Days 105 -- Sage working group at "Illustrating Mathematics" Fall 2019 program, ICERM, Providence, USA

• Sage Days 106 -- Orsay, France, 02--06 Jan 2020

• Sage Days 107 -- Paris or Orsay, France, 17--21 Feb 2020

• Sage Day 108 (canceled) -- Bar-Ilan University, Israel, 12 July 2020

• Global Virtual SageDays 109 -- May 28, 2020 (all timezones), fully online

• Global Virtual Sage Days 110 -- October 29-30, 2020 (all timezones), fully online

• Sage Days 111 - Global Virtual Sage Modularization and Packaging Summit -- December 8-11, 2020, fully online

• Sage/Oscar Days 111.5 for Combinatorial Algebraic Geometry -- February 15-19, 2021, fully online

• Sage Days 112 Online -- February to March 2021, online

• Sage Days 115 -- flatsurf Sage Days in Bordeaux, France, 2022-04-13--2022-04-16

• Global Virtual Sage Days 112.358 -- June 2, 2022 (all timezones) = June 1-3, 2022, fully online

• Sage Days Duluth (low-dimensional topology) — University of Minnesota, Duluth, June 6–9, 2022

• Sage Days 112.5 -- Sage Days IMAG/LIRMM, Montpellier, France, 2022-06-13--2022-06-15

• Sage Days 113 -- Symbolic Computation: Algorithms, Learning and Engineering - Gebze Technical University, Istanbul, Turkey, August 10–14, 2022

• Sage Days 114 — The Institute of Mathematical Sciences, Chennai, India, July 25–27, 2022

• Sage Days 116 — South Korea, December 27-30, 2022

• Sage Days 117 — combinatorics, number theory, dynamical systems and geometry, February 6-10, 2023, Le Teich, near Bordeaux, France

Bug Days

These lasted from late 2007 to early 2009. Sage Days 40.5 was Bug Days 19 (which was in 2012). As you probably then can see, these aren't hosted anymore. We worked on finishing Trac tickets most of the time during these days. "Sage Days" are what we now call them: in addition to working on tickets, we also tend to have presentations.

• Sage Bug Day 1 (August 18th, 2007)

• Sage Bug Day 2 (September 6th, 2007)

• Sage Bug Day 3 (September 20th, 2007)

• Sage Bug Day 4 (October 20th, 2007)

• Sage Bug Day 5 (November 3rd, 2007)

• Sage Bug Day 6 (December 1st, 2007)

• Sage Bug Day 7 (December 14th, 2007)

• Sage Bug Day 8 (January 2nd, 2008)

• Sage Bug Day 9 (January 19th, 2008)

• Sage Bug Day 10 (February 16th, 2008)

• Sage Bug Day 11 (April 5, 2008)

• Sage Bug Day 12 (May 10, 2008)

• Sage Bug Day 13 (August 23rd, 2008)

• Sage Bug Day 14 (October 23, 2008)

• Sage Bug Day 15 (October 30, 2008)

• Sage Bug Day 16 (November 13, 2008)

• Sage Bug Day 17 (January 8th, 2009)

• Sage Bug Day 18 (November 19th, 2009)

• Sage Days 40.5

Doc Days

• Sage Doc Day 1 (January 17th, 2007)

• Sage Doc Day 2 (March 9th, 2008)

• Sage Doc Day 3 (August 30, 2008)

• Sage Doc Day 4 (April 11th, 2009)

• Sage Doc Day 5 (June, 2010)

Review Days

• Sage Review Day 1 (September 22, 2009)

• Review Days 2: March 17-22, University of Washington, Seattle WA.

• Review Days 3: (February 7, 2017, Online event) Coding Theory

Education Days

• Sage Education Day 1 (December 5, 2009)

• Sage Education Day 2 (February 24, 2010) (and in French)

• Sage Education Days 3 -- University of Washington, Seattle (June 16-18, 2011) (funded by NSF Division of Undergraduate Education)

• Sage Education Days 4 -- University of Washington, Seattle (June 13-15, 2012) (funded by NSF Division of Undergraduate Education)

• Sage Education Days 5 -- University of Washington, Seattle (June 19-21, 2013) (funded by NSF Division of Undergraduate Education)

• Sage Education Days 6 -- University of Washington, Seattle (June 16-18, 2014) (funded by NSF Division of Undergraduate Education)

Non-SageDays workshops/events that involved/impacted Sage

• Workshop on Algorithms in Number Theory and Arithmetic Geometry, July 31 - August 4, 2017

• Sage-Combinat Workshop in Orsay, January 26-30, 2009

• MSRI Workshop on Modular Forms, Berkeley, CA, July 31 -- Aug 11, 2006

• MSRI Workshop on Interactive Parallel Computation, Berkeley, CA, Jan 29 -- Feb 2, 2007

• Jupyter days (January 10th-16th of 2017, ICMS, Edinburgh) Computational Mathematics with Jupyter

• Workshop on interfacing (math) software with low level libraries: (April 30th-May 4th, Cernay near Paris, France)