[lammps-users] Calculate Coulomb Potential

Dear Lammps-users:
I am trying to calculate the coulomb potential of a “net charge” system. However, the Ewald method in lammps is only suitable for neutrality system in 3D-periodic boundary, so I don’t how to do that in lammps, could you please give me some suggestions?
Thanks anyway.

your description is too vague to give any specific advice. can you provide more details of what it is exactly that you want to determine and how you want to use it or what specific problem you want to solve with it?