Newton-Raphson solver of non-linear equation systems

Solves non-linear systems of equations with a numerical implementation of the Newton-Raphson method.

Uses the Newton-Raphson method to solve non-linear systems of equations of any size. The Jacobian is computed numerically; all computation is performed numerically. The simple MATLAB function takes two inputs: (1) a function handle to the system of equations, and (2) the initial point for the computation. The default number of iterations is 1000, however, it can easily be changed by setting the third input.