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== Talks == * (tutorial) number types in Sage: integers, rationals, number fields, symbolic, floating point, intervals, balls * (tutorial) SL2Z and triangle group code in Sage * (tutorial) [[http://www.labri.fr/perso/vdelecro/flatsurf.htmlflatsurf package]] == Projects == * infinite index subgroups of SL2Z * arbitrary subgroups of SL2R, SL2C * construct SL2Z subgroups (SL2R?, SL2C?) from a set of generators * Lyapunov exponents, volume, Siegel Veech constants * Delaunay triangulations * ... ''add your own project'' ... 
Sage Days 73 in Oaxaca, Mexico May 0407 2016
Sage is an open source software for mathematics. This is the webpage for the Sage workshop prior to the conference Flat Surfaces and Dynamics of Moduli Space to be held in Oaxaca May 0813. The aim is to:
 introduce Sage to people from Oaxaca or assisting to the conference
 have program and code presentations about geometry and dynamics of surfaces
 help people to implement their own projects
It is intended to be a small workshop (10 to 15 people) focusing on coding sprints.
Previsional schedule

Wednesday 4 May 
Thursday 5 May 
Friday 6 May 
Saturday 7 May 
morning 
Participant presentation 
? 
? 
? 
13:00  14:30 
lunch break 
lunch break 
lunch break 
lunch break 
afternoon 
? 
? 
? 
? 
Talks
 (tutorial) number types in Sage: integers, rationals, number fields, symbolic, floating point, intervals, balls
 (tutorial) SL2Z and triangle group code in Sage
(tutorial) flatsurf package
Projects
 infinite index subgroups of SL2Z
 arbitrary subgroups of SL2R, SL2C
 construct SL2Z subgroups (SL2R?, SL2C?) from a set of generators
 Lyapunov exponents, volume, Siegel Veech constants
 Delaunay triangulations
... add your own project ...
Existing programs about translation surfaces
 Alex Eskin code (saddle connection exploration + decomposition in cylinders)
various programs by Ronen Mukamel (Delaunay triangulations, Teichmueller curves especially in genus 2)
Vincent Delecroix flatsurf package (mostly interval exchanges and square tiled surfaces, but a bit of topology)
Vincent Delecroix and Pat Hooper drawing program
Charles Fougeron code for Lyapunov exponents of strata coverings (see trac ticket #16102)
Chris Swierczewski Riemann surfaces package
Organizers
Preliminary list of participants (to be confirmed)
 Maxime FortierBourque
 Charles Fougeron
Thierry Monteil (might attend remotely)
Chris Swierczewski (might attend remotely)
Support
This workshop is supported by the ERC H2020 project OpenDreamKit.