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Thread Subject:
characteristic polynomial into matrix

Subject: characteristic polynomial into matrix

From: Muhammad Ali

Date: 4 Jan, 2013 21:10:08

Message: 1 of 3

i have a characteristic polynomial equation (M = (s^4) + (0.6*s^3) + (0.65*s^2) + (0.6*s) + 0.006) i need to change this matrix form.... dont know which codes to use

Subject: characteristic polynomial into matrix

From: Matt J

Date: 4 Jan, 2013 21:24:09

Message: 2 of 3

"Muhammad Ali" wrote in message <kc7gfg$25e$1@newscl01ah.mathworks.com>...
> i have a characteristic polynomial equation (M = (s^4) + (0.6*s^3) + (0.65*s^2) + (0.6*s) + 0.006) i need to change this matrix form.... dont know which codes to use
==============

Your question isn't very clear. I'm guessing that POLYVALM is what you might be looking for.

Subject: characteristic polynomial into matrix

From: Roger Stafford

Date: 4 Jan, 2013 23:18:08

Message: 3 of 3

"Muhammad Ali" wrote in message <kc7gfg$25e$1@newscl01ah.mathworks.com>...
> i have a characteristic polynomial equation (M = (s^4) + (0.6*s^3) + (0.65*s^2) + (0.6*s) + 0.006) i need to change this matrix form.... dont know which codes to use
- - - - - - - - -
  A characteristic polynomial uniquely determines the eigenvalues of a matrix and nothing more. To find a corresponding matrix requires a knowledge of its eigenvectors as well. Any arbitrary set of eigenvectors combined with the given eigenvalues would give you a matrix which possesses that characteristic polynomial.

  In other words, you can't find the matrix if you only know its characteristic polynomial. That isn't enough information.

Roger Stafford

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