On Sep 28, 2:48 pm, flyingsquirrel <coskun.e...@yahoo.com> wrote:
> I have a symmetric matrix that I want to diagonalize, such as
>
> x y z
> y 0 xy
> z xy xyz
>
> x, y, z being variables, and the base field is CC (complex numbers). I
> typed in the following:
>
> R.<x,y,z>=CC[]
> m=matrix(R,[[x,y,z],[y,0,x*y],[z,x*y,x*y*z]])
> m.eigenvalues()
>
> and I get an error message (NotImplementedError). How do I diagonalize
> this matrix?
sage: var('x y z')
(x, y, z)
sage: m=matrix([[x,y,z],[y,0,x*y],[z,x*y,x*y*z]])
sage: e=m.eigenvalues()
works but gives very long answer
(Compare Wolfram alpha which also gives long answer)
(v=m.eigenvectors() takes ~ 5min)
Andrzej Chrzeszczyk
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