---
name: "params_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/params_grp"
---

# params\_grp(3)

Parameters

## NAME

params\_grp - Parameters

## SYNOPSIS

### Topics

**lamch:          machine parameters**\
 **lamc1:          ??**\
 **lamc2:          ??**\
 **lamc3:          ??**\
 **lamc4:          ??**\
 **lamc5:          ??**\
 **labad:          over/underflow on obsolete pre-IEEE machines**\
 **ilaver:         LAPACK version**\
 **ilaenv:         tuning parameters**\
 **ilaenv2stage:   tuning parameters for 2-stage eig**\
 **iparam2stage:   sets parameters for 2-stage eig**\
 **ieeeck:         verify inf and NaN are safe**\
 **la\_constants:   Fortran 95 module of constants**\
 **— BLAST constants —**\
 **iladiag:        diag      string to BLAST const**\
 **ilaprec:        precision string to BLAST const**\
 **ilatrans:       trans     string to BLAST const**\
 **ilauplo:        uplo      string to BLAST const**\
 **la\_transtype:   BLAST const to string**\

## Detailed Description

## Author

Generated automatically by Doxygen for LAPACK from the source code.