  In article the following tasks on computer modeling of electric fields are
analyzed: 1) calculation of distribution of potential for the field created by
two parallel plates and charged bodies in the non-uniform environment; 2)
calculation of distribution of potential and force lines of electric field in
which are brought the cylinder, a pipe, a plate, a rectangular parallelepiped
from dielectric, and also the metal cylinder; 3) calculation of distribution of
potential in the one-dimensional nonuniform environment; 4) the solution of the
equation of Poisson in spherical coordinates; 5) calculation of distribution of
potential in cylindrical coordinates with the subsequent creation of
equipotential surfaces and force lines.
