# Is the electrostatic potential also undetermined by a constant in 2d periodic boundary conditions?

In 3D periodic boundary conditions (PBC), the electrostatic potential is underdetermined by a constant. Is this also true for any other periodicity as 2D or 1D?

• The condition of periodicity does not change if a constant is added to the potential. This is true for 1D, 2D and 3D. – Alex Trounev Mar 24 at 13:32