---
name: "larr_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/larr_comp_grp"
---

# larr\_comp\_grp(3)

tridiag RRR routines

## NAME

larr\_comp\_grp - tridiag RRR routines

## SYNOPSIS

### Topics

**larra:          step in stemr**\
 **larrb:          step in stemr**\
 **larrc:          step in stemr**\
 **larrd:          step in stemr, tridiag eig**\
 **larre:          step in stemr**\
 **larrf:          step in stemr, find relative robust representation (RRR)**\
 **larrj:          step in stemr, refine eigval estimates**\
 **larrk:          step in stemr, compute one eigval**\
 **larrr:          step in stemr, test to do expensive tridiag eig algorithm**\
 **larrv:          eig tridiagonal, step in stemr & stegr**\
 **lar1v:          step in larrv, hence stemr & stegr**\

## Detailed Description

## Author

Generated automatically by Doxygen for LAPACK from the source code.