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  2. Eigendecomposition of a matrix - Wikipedia

    en.wikipedia.org/wiki/Eigendecomposition_of_a_matrix

    The eigenvalues are real. The eigenvectors of A −1 are the same as the eigenvectors of A. Eigenvectors are only defined up to a multiplicative constant. That is, if Av = λv then cv is also an eigenvector for any scalar c ≠ 0. In particular, −v and e iθ v (for any θ) are also eigenvectors.

  3. Eigenvalues and eigenvectors - Wikipedia

    en.wikipedia.org/wiki/Eigenvalues_and_eigenvectors

    The eigenvectors and eigenvalues of a linear transformation serve to ... and matrix diagonalization. In essence, an eigenvector v of a linear transformation T is a ...

  4. Diagonalizable matrix - Wikipedia

    en.wikipedia.org/wiki/Diagonalizable_matrix

    Diagonalization is the process of finding the above ... Diagonalizing a matrix is the same process as finding its eigenvalues and eigenvectors, in the case that the ...

  5. Jacobi eigenvalue algorithm - Wikipedia

    en.wikipedia.org/wiki/Jacobi_eigenvalue_algorithm

    In numerical linear algebra, the Jacobi eigenvalue algorithm is an iterative method for the calculation of the eigenvalues and eigenvectors of a real symmetric matrix (a process known as diagonalization).

  6. Lanczos algorithm - Wikipedia

    en.wikipedia.org/wiki/Lanczos_algorithm

    The Lanczos algorithm is most often brought up in the context of finding the eigenvalues and eigenvectors of a matrix, but whereas an ordinary diagonalization of a matrix would make eigenvectors and eigenvalues apparent from inspection, the same is not true for the tridiagonalization performed by the Lanczos algorithm; nontrivial additional steps are needed to compute even a single eigenvalue ...

  7. Modal matrix - Wikipedia

    en.wikipedia.org/wiki/Modal_matrix

    In linear algebra, the modal matrix is used in the diagonalization process involving eigenvalues and eigenvectors. [1] Specifically the modal matrix for the matrix is the n × n matrix formed with the eigenvectors of as columns in . It is utilized in the similarity transformation

  8. Diagonal matrix - Wikipedia

    en.wikipedia.org/wiki/Diagonal_matrix

    The surviving diagonal elements, a i, j, are known as eigenvalues and designated with λ i in the equation, which reduces to =. The resulting equation is known as eigenvalue equation [ 4 ] and used to derive the characteristic polynomial and, further, eigenvalues and eigenvectors .

  9. Transformation matrix - Wikipedia

    en.wikipedia.org/wiki/Transformation_matrix

    The surviving diagonal elements, ,, are known as eigenvalues and designated with in the defining equation, which reduces to =. The resulting equation is known as eigenvalue equation . [ 5 ] The eigenvectors and eigenvalues are derived from it via the characteristic polynomial .