Error in Fenics Code based on cell type

dolfinx
1

Hello everyone!

Can someone tell me what is wrong with this code?

import dolfinx
from mpi4py import MPI
import dolfinx.io
import ufl
import numpy as np
mesh = dolfinx.mesh.create_unit_square(MPI.COMM_WORLD, 10, 10)
V1 = ufl.FiniteElement(“CG”, mesh.ufl_cell(), 1)
R1 = ufl.FiniteElement(“Real”, mesh.ufl_cell(), 0)

mel = ufl.MixedElement([V1, R1])

V = dolfinx.fem.FunctionSpace(mesh, mel)

This is the error I am getting

ValueError: Unknown element family: Real with cell type triangle

2

Maybe it works if you change “Real” to “R” ?

https://fenicsproject.org/olddocs/dolfin/1.4.0/python/programmers-reference/functions/functionspace/FunctionSpace.html

3

DOLFINx does currently not support the Real element, ref: Implement global support dofs · Issue #1983 · FEniCS/dolfinx · GitHub

4

Thank you for the information.