This program finds solutions to the differential equation using 3 numerical methods: Euler, Runge-Kutta, Improved Euler.
In NumericalMethods.py you can write your function
When the program starts, two windows will appear: one for creating solution graphs, and the other for determining the error of the methods depending on the number of steps.
x0 and y0 are initial conditions. X is the x-axis limit. N is the number of steps.
