Tia, Raphael Gene G. 19-09367 Activity No. 2 In comparison to analytic solutions, numerical methods allow you to solve problems quickly and easily. There are numerous resources available to simplify the solution of what can be a difficult problem, whether the target is integration or the solution of complex differential equations. simple algebra to analytical math. Most of the common applications of numerical methods are used in the engineering field. First, numerical methods can be used in traffic engineering to analyze and have proper calculation for the traffic flows. Whereas, equations were made depending on the road features to have a smoother entrance and exit of vehicles. Also, this could be applied in chemical engineering to balance chemical equations and electrical engineering to solve a certain value in a circuit, where there are systems of equations to be solved. Another is its application in civil engineering where different materials we used in our daily life like glass, woods, metals, and concretes are being studied. As a result, the alteration of materials and the prediction of their properties are critical goals for manufacturers. Engineers in industry, among other things, are very interested in the elastic behavior or loading ability of materials in order to manufacture high-quality materials. Thus, for the quantitative description of changes in material properties due to external factors, a mathematical model is needed. The concepts of differential equations come in handy as a useful tool for developing such a model. Lastly, numerical methods could be applied in the petroleum engineering field where engineers can use numerical methods to predict the behavior of the hydrocarbons or to have an easier method for the enhanced oil recovery. In which, integration is used to calculate the region under the rate-time curve when estimating incremental oil from an enhanced oil recovery method. Various methods have been used in the industry over the years, ranging from the use of templates to graphical procedures. Thus, applying numerical methods in petroleum engineering may open new techniques and calculations to get more hydrocarbons.