fm_dof(x)# S3 method for fm_mesh_1d
fm_dof(x)
# S3 method for fm_mesh_2d
fm_dof(x)
# S3 method for fm_mesh_3d
fm_dof(x)
# S3 method for fm_tensor
fm_dof(x)
# S3 method for fm_collect
fm_dof(x)
# S3 method for fm_lattice_2d
fm_dof(x)
# S3 method for fm_lattice_Nd
fm_dof(x)