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 1d comment Closest positive definite matrix to arbitrary one real symmetric matrix will have real eigenvalues. 1d answered Reciprocal of a quadratic form 1d asked Relation between $v$ and column space of matrix $A=(I+vv^T)$ 2d comment Is there a fundamental theorem of algebra for matrices? I have a feeling that this might be possible for simultaneously diagonalizable matrices but not in general. Apr 27 comment Are adjugates of similar matrices similar? @Akiiino Can you check the proof for the identity you are looking for in the link math.stackexchange.com/questions/799284/… . I am not able to grasp it. Apr 27 comment Are adjugates of similar matrices similar? @Akiiino Ok, sorry. Now I see your point. This proof is incomplete in its current form. Apr 27 revised Are adjugates of similar matrices similar? added 230 characters in body Apr 25 comment Are adjugates of similar matrices similar? @Akiiino see the updated answer. I have included the wiki link for the proof you are looking for. Apr 25 revised Are adjugates of similar matrices similar? added 56 characters in body Apr 20 reviewed Approve definite integral in matlab? Apr 20 revised Are adjugates of similar matrices similar? edited title Apr 20 comment Are adjugates of similar matrices similar? see the updated one. Apr 20 revised Are adjugates of similar matrices similar? deleted 46 characters in body Apr 20 answered Are adjugates of similar matrices similar? Apr 19 answered General conditions for submatrices in regards to determinant Apr 18 answered Solving Norm-Constrained Homogeneous Linear Least Squares Apr 12 answered Inverse of a Matrix, with some conditions. Apr 5 answered Any invertible matrix can be written as the product of an upper triangular matrix and a unitary matrix. Apr 4 answered Prove $A^TA$ is similar to $AA^T$ Mar 18 comment How do I prove that this matrix exists? You might want to look at schur triangular decomposition.