bundles / scipy latest / scipy / linalg / _flapack / sstev

lapack_function

`scipy.linalg._flapack:sstev`

source: build-install/usr/lib/python3.14/site-packages/scipy/linalg/_flapack.cpython-314-x86_64-linux-gnu.so

Signature

def sstev(d, e, compute_v = 1, overwrite_d = 0, overwrite_e = 0)

Summary

Compute the eigenvalues and optionally the eigenvectors of a symmetric tridiagonal matrix (LAPACK sstev).

Parameters

d : ndarray: Diagonal elements of the symmetric tridiagonal matrix, length n.
e : ndarray: Off-diagonal elements, length max(n - 1, 1).
compute_v : int, optional: If nonzero, eigenvectors are computed. Default is 1.
overwrite_d : int, optional: If nonzero, d may be overwritten in place. Default is 0.
overwrite_e : int, optional: If nonzero, e may be overwritten in place. Default is 0.

Returns

vals : ndarray: Eigenvalues in ascending order, written over d.
z : ndarray: Orthonormal eigenvectors as columns, shape (n, n), or a (1, 1) placeholder when compute_v is 0.
info : int: 0 on success; if negative, the -info-th argument had an illegal value; if positive, the algorithm failed to converge.

Aliases

scipy.linalg._flapack.sstev