Convert Code from fenics to fenicsx

General
1

Hi all,
I have just started to learn FEniCS, I download the new version (FEniCSx).
I want to run this example (Neo-Hookean Solid Model Example in FEniCS | by Bilgin Koçak | Medium) but as I understand this example is found in the old version (FEniCS) and I have some trouble to convert this code from FEniCS to FEniCSx.
I would like some help to understand how this works, and how can I run this code in the new version?
Is there any tutorial that explain the changes between the two versions?

Thanks in advance!
Yasmine.

2

There are plenty of examples of the new FEniCSx syntax at the example page: Demos — DOLFINx 0.6.0 documentation
and
The FEniCSx tutorial — FEniCSx tutorial
The particular example you are looking at is quite straightforward to port if you look at examples such as:
The equations of linear elasticity — FEniCSx tutorial
There is also the cheat-sheet: https://github.com/juliusgh/dolfinx-demos/blob/main/dolfin-dolfinx-cheatsheet.md

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