bundles / scipy latest / scipy / linalg / _flapack / cheevd_lwork

lapack_function

`scipy.linalg._flapack:cheevd_lwork`

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

Signature

def cheevd_lwork(n, compute_v = 1, lower = 0)

Summary

Query the optimal workspace sizes for cheevd.

Parameters

n : int: Order of the square matrix.
compute_v : int, optional: If nonzero, eigenvectors are computed as well as eigenvalues. Default is 1.
lower : int, optional: If nonzero, the lower triangle of a is referenced; otherwise the upper. Default is 0.

Returns

work : complex: Optimal size of the work array, as a scalar of the routine's dtype.
iwork : int: Optimal size of the integer workspace, to pass as liwork.
rwork : float: Optimal size of the real workspace, to pass as lrwork. The real flavors have no such output, so they return one value fewer.
info : int: 0 on success; if negative, the -info-th argument had an illegal value.

Aliases

scipy.linalg._flapack.cheevd_lwork