The goal of this paper is to examine three dierent numerical methods that are
used to solve systems of nonlinear equations in several variables. The rst method we
will look at is Newton's method. This will be followed by Broyden's method, which is
sometimes called a Quasi-Newton method; it is derived from Newton's method. Lastly, we
will study the Finite Dierence method that is used to solve boundary value problems of
nonlinear ordinary dierential equations. For each method, a breakdown of each numerical
procedure will be provided. In addition, there will be some discussion of the convergence
of the numerical methods, as well as the advantages and disadvantages of each method.
After a discussion of each of the three methods, we will use the computer program Matlab
to solve an example of a nonlinear ordinary dierential equation using both the Finite
Diference method and Newton's method.