Document Type : Research Paper
Department of Engineering sciences, Faculty of Technology and Engineering East of Guilan, University of Guilan P.C.44891-Rudsar-Vajargah,Iran
Department of Mathematics, Payame Noor University, P.O.Box 19395-3697, Tehran, Iran
In recent years, numerous approaches have been applied for ﬁnding the solutions of functional equations. One of them is the optimal homotopy asymptotic method. In current paper, this method has been applied for obtaining the approximate solution of Fisher equation. The reliability of the method will be shown by solving some examples of various kinds and comparing the obtained outcomes with the results of homotopy Perturbation method.