x_new = x_old - fx / fpx
until convergence. The algorithm defines a maximum iteration count and a tolerance level, returning an approximation of the root when the difference between successive iterations is negligible. For more details, visit the Microsoft Support site. How To Code the Newton Raphson Method in Excel VBA.pdf
In the Visual Basic Editor, click Insert > Module to create a new module. This will create a new file where you can write your VBA code. x_new = x_old - fx / fpx until convergence
Debug.Print "Iter " & i & ": x=" & x_new & ", f(x)=" & fx click Insert >