---
name: "getsqr_comp_grp"
section: "3"
platform: "linux"
package: "lapack-doc"
version: "3.12.1-2"
release: "Arch Linux 2026-11-01"
platforms: ["linux"]
url: "https://new.carta.tech/getsqr_comp_grp"
---

# getsqr\_comp\_grp(3)

QR, tall-skinny

## NAME

getsqr\_comp\_grp - QR, tall-skinny

## SYNOPSIS

### 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

## Author

Generated automatically by Doxygen for LAPACK from the source code.