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

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

• Sage Days 3000: (dates yet unknown, 2019, Gent, Belgium) Porting Sage to Python 3

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

Bug Days

• 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)