Abstract
In this study, Adomian Decomposition Method (ADM), Modified Decomposition Method (MD) and Laplace Decomposition Method (LDM) were used in solving nonlinear Klein-Gordon equation. It can be easily concluded that these three methods yielded exactly the same results.
Key words: Adomian Decomposition Method, Modified Decomposition Method, Laplace Decomposition Method, Klein-Gordon equation and Noise terms phenomena.