Mardal-Tai-Winther

Hello, I want to implement the Mardal-Tai-Winther elements discretizing
For Stokes-darcy flow, I would like to ask if FENICSX comes with this meta, and what should I do if it doesn’t? Very much look forward to your reply, thank you !

As far as I can tell it is not: Mardal–Tai–Winther | DefElement

It could be implemented as custom element, ref (Creating a custom element — Basix 0.10.0.0 documentation)

@mscroggs can comment further.