How To Code The Newton Raphson Method In Excel Vba.pdf -

' Initialize variables x0 = 1# ' initial guess tol = 0.0001 ' tolerance max_iter = 100 ' maximum number of iterations

For i = 1 To MaxIter fx = f(x_old) fpx = fprime(x_old)

Debug.Print "Iter " & i & ": x=" & x_new & ", f(x)=" & fx How To Code the Newton Raphson Method in Excel VBA.pdf

You can download the code used in this article in the form of an Excel file (.xlsm) that contains the VBA code. To download the file, click on the link below:

' If loop finishes without convergence NewtonRaphson = CVErr(xlErrValue) ' No convergence error ' Initialize variables x0 = 1# ' initial guess tol = 0

How to Create a User-Defined VBA Function in Microsoft Excel

Sub NewtonRaphson() ' Declare variables Dim x0 As Double Dim x1 As Double Dim tol As Double Dim max_iter As Integer Dim i As Integer How To Code the Newton Raphson Method in Excel VBA.pdf

In the main function, we already added:

For i = 1 To MaxIter fx = f(x_old) fpx = fprime(x_old)