Mixed Function Spaces in Fenicsx

[mayu]

Hey everyone,

As FEniCsx is the recommended iteration of FEniCs, I was hoping that it would have MixedFunctionSpace as a functionality. However, none of the demos here or here address that. Is that a lack of functionality yet to be added or is it just not demonstrated?

[dokken]

As stated on the top of the link you sent:

Note: this is documentation for an old release. View the latest documentation at docs.fenicsproject.org/dolfinx/v0.9.0/python/demos.html

If you go to the latest documentation, you’ll find
https://docs.fenicsproject.org/dolfinx/v0.9.0/python/search.html?q=MixedFunctionSpace&check_keywords=yes&area=default
along with

FEniCS release notes

Additional resources include
http://jsdokken.com/FEniCS-workshop/src/multiphysics/submeshes.html
http://jsdokken.com/FEniCS-workshop/src/multiphysics/coupling.html
and

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