Please use Matlab language :)

The electric field is related to the charge density by the divergence relationshijp E0 where E is electric field. ? charge density, and eo is permittivity. The electric field is related to the electric potential by a gradient relationship, Therefore the potential is related to the charge density by Poisson's equation In a charge-free region of space, this becomes Laplace's equation, The walls of a rectangular cylinder are constrained in potential as shown in 2. The walls at 0, a and y-0 have zero potential, while those at y- b have the potential distributions V, respectivel;y The region inside the cylinder is free space v(t) y-b y-O Figure 2: Setup of the rectangular cylinder Assume that ab 1 and V 1. Determine the potential in the free region inside the cylinder Plot the potential ?(z, y) and error, is (z, y)-??(z, y)|, where the exact potential distribution . n-1,odd Sinh_ and 0