The Adomian decomposition method (ADM) [1, 2] has been
efficiently used to solve linear and nonlinear problems such
as differential equations and integral equations.The method
provides the solution as an infinite series in which each
term can be easily determined. The rapid convergence of the
series obtained by this method is thoroughly discussed by
Cherruault et al. [3].
Recently, Wazwaz [4] proposed a reliable modified technique
of ADM that accelerates the rapid convergence of
decomposition series solution. The modified decomposition
needs only a slight variation from the standard decomposition
method. Although the modified decomposition method
may provide the exact solution by using two iterations
only and sometimes without using the so-called Adomian
polynomials, its effectiveness is based on the assumption that
the function