Sage Days 74: Differential geometry and topology Observatoire de Paris, Meudon, France, 30 May - 2 June 2016

Main goals

This workshop was dedicated to the implementation of some topology and differential geometry in SageMath, partly in connection with the SageManifolds project 3D visualisation in the Jupyter notebook was also discussed.

OpenDreamKit implication

OpenDreamKit, via its Orsay and Bordeaux nodes, supported the travel and living expenses of 7 speakers:

Event summary

Morning sessions were devoted to talks on various topics relevant to the workshop theme, some of them involving codes that are not part of SageMath (SnapPy, Flipper, Gyoto). Afternoon sessions were devoted to working groups and coding sprints.


26 persons took part in these Sage Days: 5 females and 21 males, originating from the following countries: France (11), USA (8), Poland (3), Germany (2), Russia (1) and UK (1).

Results and impact

41 SageMath tickets have been written or reviewed during the workshop; the list of them is available at Progresses on the K3D-jupyter visualisation are reported at

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