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From: shahnaz fatima on 1 Aug 2010 11:26
i know the 3 eigenvectorsof the matrix. but i dont know the matrix. can i construct if not the exact matrix, a scale of it?

the eigenvectors are (1,1,1), (-1, 0,1),(1,-2,1)

help plz
From: Rune Allnor on 1 Aug 2010 11:49
On 1 Aug, 17:26, "shahnaz fatima" <shahnaz1981...(a)gmail.com> wrote:
> i know the 3 eigenvectorsof the matrix. but i dont know the matrix. can i construct if not the exact matrix, a scale of it?

Homework?

Set up the expression for the eigendecomposition
of the matrix, and see if you have all the pieces
you need.

Rune
From: Matt J on 1 Aug 2010 22:10
"shahnaz fatima" <shahnaz1981fat(a)gmail.com> wrote in message <i343mc$775$1(a)fred.mathworks.com>...
> i know the 3 eigenvectorsof the matrix. but i dont know the matrix. can i construct if not the exact matrix, a scale of it?
========

No. You need the eigenvalues, too.
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