“…There is no closed-form exact solution for the equation, but many attempts have been made to find analytical approximate solutions and numerical solutions . Almost all methods and techniques were applied to obtain either numerical or approximate analytical solutions to the equation, Runge-Kutta method [3,11], series approximation and Padé approximant [2,17], numerical integration [3], perturbation [4,8], variational iteration method [5,14], homotopy method [6,23], Adomian decomposition method [9,13], recursive relations [10], finite difference method [12], shooting method [15,16], method of gradient [18], collocation method [19,21], generalized iterative differential quadrature method [20], combined Laplace transform and homotopy perturbation methods [22], numerical transformation methods [24], Haar wavelet approximation and a collocation method [25], optimal auxiliary functions method [26], direct algorithm method [27], quartic B-spline method [28], reproducing kernel method [29], optimal auxiliary functions method [30].…”