How To Make a 10x10 Matrix Diagonalization Calculator

My Code goes like this it's a working 2x2 Diagonalization Calculator but I need to be able to do a 10x10 matrix

    prompt = 'Enter Matrix format [Row;NextRow] ';

    GivenMatrix = input(prompt)

    EigenValues = eig(GivenMatrix)

    [V,EV] = eig(GivenMatrix)

    Polynomial = poly(GivenMatrix)

    A = V(:,1)

    B = V(:,2)

    AN = A/V(:,1)

    BN = B/V(:,2)

    EigenVector = AN+BN

    Inverse = inv(EigenVector)

    ANS = Inverse*GivenMatrix*EigenVector

I tried to increase the number of variables but when i tried to use them they always give me inaccurate answers. I also tried doing a 3x3 version but always messes up the eigenvector part of the solution

[Jan]

You forgot to mention, what you want as result. The input is a 10x10 matrix (of course provided by code, not by an input command!), but what is the wanted output?

[Homer Joseph Asuncion]

The 10x10 matrix must be inputted and as for the result It should be the diagonalized vector

[Jan]

It is a challenge to input 100 numbers in an edit field correctly. One typo and you have to restart. In consequence it is not trivial to reproduce a result.

Answer 1

[Jan]

Why is

[V, EV] = eig(A)

not a solution of the problem already? Or:

roots(poly(A))

?