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la.factorizations.lq
Compute the LQ factorization of a general m×n matrix A.
Syntax
la.factorizations.lq(A, options?)
Description
Compute the LQ factorization of a general m×n matrix A. A = L * Q where L is lower triangular (m×k) and Q is orthogonal (k×n), with k = min(m, n). Implementation note: This uses QR of A^T since DGELQF is not exported. A = L * Q implies A^T = Q^T * L^T, so we compute QR of A^T.
Parameters
| Name | Description |
|---|---|
| A | - Input matrix (m × n). Can be 2D array (row-major) or 1D array (column-major). |
| options(optional) | - Factorization options |
Returns
LQResult