## 10 Reputation

12 years, 285 days

## Hey I think i got it.    Thx...

Hey I think i got it.

Thx. the problem to me was that the 'e' was  not sorted. So I did sort them and got the result. I can see you just end the calculation with a prove. I do see it now. Now I just need to work with it.

## I don't get it...

I only need the final answer.

I don't get it work. I have tried to figure this out over the night and some days now.

I have tests your answers in Maple T.A. Maybe I just don't do it right.

Pagan, with you I get the original matrix A. If I answer that, I get it wrong. And robert, here I get solution with many unknown factors, and its not a matrix.

I will try to post the Maple TA questions, and I copy a google translate here:

"There has been a diagonaliserbar matrix

A=

(-3 0 0)

(0 -3 0)

(22 6 -1)

the following two questions.

(I)Determine own value to A.

The answer must be given as numbers separated by commas. Whose own values are, 1, -1, 2and must answer is given as 1 -1.2 If the eigenvalue with multiplicity 2, and the third eigenvalue is -4 to be the answer given by-4,1,1So repetition corresponding to multiplicity. The order does not matter.

Comment: Own values are -3, -3, -1

(Ii)Sort the found eigenvalues by size, and let D denote the 3x3 diagonal matrix having the smallest eigenvalue as the entry D11 and the largest as input D33.

Define an 3x3 invertible matrix P, so that A=PDP.

The answer must be in Maple syntax for a matrix, for example, enter the matrix

(1 2 3)

(0 5 5)

(0 0 6)

as

Matrix ([[1,2,3], [0,4,5], [0,0,6]])

Be careful that you do not swap for the rows and columns. Use the preview feature to see that you have typed what you meant to type.

There are many other correct answers.

P=

(1 0 0)

(-3 1 0)

(-2 -3 1)

"

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