the study of differential equations is a wide field in pure and applied mathematics,physics,meteorology,and engineering. All of these disciplines are concerned with the properties of differential equations of various types. Pure mathematics focuses on the existence and uniqueness, while applied mathematics emphasizes the rigorous justification of the methods for approximating solution.Differential equations play an important role in modelling virtually every physical, technical, or biological process,from celestial motion, to bridge design, to interactions between neurons. Differential equations such as those used to solve real-life problems may not necessarily be directly solvable. i.e. do not have closed from solutions. Instead,solutions can be approximated using numerical methods 3.