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_ldl_get_d_and_l(ldu, pivs, lower=True, hermitian=True)

Parameters

ldu : ndarray

The compact output returned by the LAPACK routing

pivs : ndarray

The sanitized array of {0, 1, 2} denoting the sizes of the pivots. For every 2 there is a succeeding 0.

lower : bool, optional

If set to False, upper triangular part is considered.

hermitian : bool, optional

If set to False a symmetric complex array is assumed.

Returns

d : ndarray

The block diagonal matrix.

lu : ndarray

The upper/lower triangular matrix

Helper function to extract the diagonal and triangular matrices for LDL.T factorization.

Examples

See :

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GitHub : /scipy/linalg/_decomp_ldl.py#242
type: <class 'function'>
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