Characteristic Polynomials
The poly function also
computes the coefficients of the characteristic polynomial of a matrix:
A = [1.2 3 -0.9; 5 1.75 6; 9 0 1];
poly(A)
ans =
1.0000 -3.9500 -1.8500 -163.2750
The roots of this polynomial, computed with roots, are the characteristic
roots, or eigenvalues, of the matrix A. (Use eig to compute the
eigenvalues of a matrix directly.)
 | Polynomial Curve Fitting | | Computational Geometry |  |
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