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QR, tall-skinny
LAPACK » Orthogonal/unitary factors (QR, CS, etc.)
Collaboration diagram for QR, tall-skinny:

## Topics

| latsqr: tall-skinny QR factor
| {un,or}gtsqr: generate Q from latsqr
| {un,or}gtsqr_row: generate Q from latsqr
| larfb_gett: step in ungtsqr_row
| lamtsqr: multiply by Q from latsqr
| getsqrhrt: tall-skinny QR factor, with Householder reconstruction
| {un,or}hr_col: Householder reconstruction
| la{un,or}hr_col_getrfnp: LU factor without pivoting
| la{un,or}hr_col_getrfnp2: LU factor without pivoting, level 2

## Detailed Description