“…The Laplace equation, usually named harmonic function, can be considered as a mathematical description for the study of several models describing various phenomena in the applied sciences, such as: temperature distributions, potentials of electrostatic, magneto-static fields, velocity potentials of incompressible irrotational fluid flows, the electrostatic problems, and in-compressible fluid [1,4,6,18,19,24]. Because of the powerful development of computers, considerable efforts have been made to solve Laplace's equation in different shapes and boundary conditions [23].…”