Re: [math-fun] Expansion of charpoly's in terms of traces ?

Quoting Henry Baker <hbaker1@pipeline.com>:

I noticed in Wikipedia's description of eigenvalues, an expansion of the characteristic polynomial of a 3x3 matrix in terms of traces, so I wanted to see if this worked more generally.

It looks like you may have noticed Newton's identities, and thereby Krylov's method of getting characteristic equations. Wikipedia, much less God, doesn't know everything. -hvm ------------------------------------------------- www.correo.unam.mx UNAMonos Comunicándonos