Hi @bagla0 , please use C1 continuity functions available for quad and interval mesh_dolfinx? - #5 by bagla0 to ask those questions.
I do understand that in the last week or so you have an issue with C1 continuity, have searched the forum and are asking questions in every related topic. However, scattering the questions through several threads in the forum is not helpful for anyone, be it someone who is willing to reply, you who has to read the answer, or someone find your questions and their answers in future.