Is there a fast way to get the characteristic polynomial of this symmetric matrix?
517
Determinant of a specially structured matrix ($a$'s on the diagonal, all other entries equal to $b$)
35278
Does equality of characteristic polynomials guarantee equivalence of matrices?
73027
Questions on symmetric matrices
52528
Showing that minimal polynomial has the same irreducible factors as characteristic polynomial
70289
What does a symmetric matrix transformation do, geometrically?
144145
Symmetric $3\times 3$ Matrices - Base matrix
157109
Finding the Dimension of a Matrix Polynomial: $W$ = { $p(B)$ : $p$ is a polynomial with real coefficients}
2271
Determinant of a rank $1$ update of a scalar matrix, or characteristic polynomial of a rank $1$ matrix
153127
Is $U=V$ in the SVD of a symmetric positive semidefinite matrix?
66714
Characteristic polynomial of companion matrix
125569
Prove that the eigenvalues of a real symmetric matrix are real
58900
Decomposing a matrix with polynomial elements into a polynomial with matrix coefficients
8970
Proving the cross product matrix tranformation identity with an alternative solution
130720
Special linear algebra over finite field with characteristic 3
90982
How to find the determinant of this $3 \times 3$ Hankel matrix?
30665
Elegant proofs that similar matrices have the same characteristic polynomial?
31029
Characteristic polynomial of a matrix of $1$'s