Renol (Resolution of NOnLinear Equations) is an application designed for solving nonlinear equations by the methods of bisection, fixed point, Newton and Secant. In addition, it provides a graph of the equation introduced in order to get an idea about where is the solution.
It is intended for all audiences, especially teaching, because due to the difficulty students have in these equations, we present all steps necessary for the calculation of the solutions in chronological order.