[SciPy-dev] eig_banded
Arnd Baecker
arnd.baecker at web.de
Fri Jun 30 08:06:37 CDT 2006
On Fri, 30 Jun 2006, Nils Wagner wrote:
> Eigenvalues and Decompositions:
>
> eig --- Find the eigenvalues and vectors of a square matrix
> eigvals --- Find the eigenvalues of a square matrix
> lu --- LU decomposition of a matrix
> lu_factor --- LU decomposition returning unordered matrix and pivots
> lu_solve --- solve Ax=b using back substitution with output of
> lu_factor
> svd --- Singular value decomposition of a matrix
> svdvals --- Singular values of a matrix
> diagsvd --- construct matrix of singular values from output of svd
> orth --- construct orthonormal basis for range of A using svd
> cholesky --- Cholesky decomposition of a matrix
> cho_factor --- Cholesky decomposition for use in solving linear
> system
> cho_solve --- Solve previously factored linear system
> qr --- QR decomposition of a matrix
> schur --- Schur decomposition of a matrix
> rsf2csf --- Real to complex schur form
> hessenberg --- Hessenberg form of a matrix
>
> An entry for eig_banded is missing.
I added:
eig_banded --- Find the eigenvalues and vectors of a band matrix
eigvals_banded --- Find the eigenvalues of a band matrix
BTW:. what is the convention here about the formatting?
eig_banded fits (same length as hessenberg),
but eigvals_banded is too long?
Best, Arnd
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