Numerical method is the important aspects in solving real world problems that are related to mathematics, science, medicine, business are very few examples. Numerical method is the area related to mathematics and computer science which create, analysis and implements algorithm to numerically solve the system of linear equations. Numerical methods commonly involve an iterative method (as to find roots). They are now mostly used as preconditions for the popular iterative solvers. While it is difficult task solve as it takes a lot of time but it is an interesting part of Mathematics. In this paper the main emphasis on the beginners that how to iterate the solution of numerical to get appropriate results.