GETSLS: solves overdetermined or underdetermined complex linear systems involving an M-by-N matrix A, using a tall skinny QR or short wide LQ factorization of A. It is assumed that A has full rank. The following options are provided:
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GETSLS: solves overdetermined or underdetermined complex linear systems involving an M-by-N matrix A, using a tall skinny QR or short wide LQ factorization of A. It is assumed that A has full rank. The following options are provided:
- If TRANS = 'N' and m >= n: find the least squares solution of an overdetermined system, i.e., solve the least squares problem minimize || B - A*X ||.
- If TRANS = 'N' and m < n: find the minimum norm solution of an underdetermined system A * X = B.
- If TRANS = 'C' and m >= n: find the minimum norm solution of an undetermined system A**T * X = B.
- If TRANS = 'C' and m < n: find the least squares solution of an overdetermined system, i.e., solve the least squares problem minimize || B - A**T * X ||. Several right hand side vectors b and solution vectors x can be handled in a single call; they are stored as the columns of the M-by-NRHS right hand side matrix B and the N-by-NRHS solution matrix X.
◆ la_cgetsls()
| la_lapack::getsls::la_cgetsls |
◆ la_dgetsls()
| la_lapack::getsls::la_dgetsls |
◆ la_qgetsls()
| la_lapack::getsls::la_qgetsls |
◆ la_sgetsls()
| la_lapack::getsls::la_sgetsls |
◆ la_wgetsls()
| la_lapack::getsls::la_wgetsls |
◆ la_zgetsls()
| la_lapack::getsls::la_zgetsls |
The documentation for this interface was generated from the following file:
1.13.2