i am not able to understand the following line in fenics
V0=FunctionSpace(mesh, "DG", 0)
Q = project_axisym(0.5 * (E_r[0] ** 2 + E_r[1] ** 2 + E_z[0] ** 2 + E_z[1] ** 2), mesh,V0)
is it possible to use project_axisym in fenics 2019.2.0
You’ll have to clarify how you’d defined project_axisym or provide a MWE. See e.g. here. project_axisym is not a function available in the FEniCS/DOLFIN namespaces.