Module CUNGRQ in LAPACK

General Information

Generates all or part of the unitary matrix Q from an RQ factorization determined by CGERQF. (Computational routine.).

Usage

CALL CUNGRQ( M, N, K, A, LDA, TAU, WORK, LWORK, INFO )

Classification

D5	QR decomposition, Gram-Schmidt orthogonalization

Type

subroutine in LAPACK package (COMPLEX sublibrary)

Language

Fortran

Availability

Public domain, Portable

Precision

Single Precision

Alternates

See also

CGERQF

Location: The University of Tennessee at Knoxville and Bell Laboratories
Contact: Jack Dongarra, ORNL (dongarra@cs.utk.edu) and Eric Grosse, Bell Labs (ehg@research.att.com)

Location

National Institute of Standards and Technology (NIST), Gaithersburg, MD.

Contact

Gaithersburg Consulting Office: 301-975-2968, consult@nist.gov

Usage

Those logged in to arno.nist.gov or amur.nist.gov may access this module as follows.

Location

National Institute of Standards and Technology (NIST), Gaithersburg, MD.

Contact

Gaithersburg Consulting Office: 301-975-2968 (FTS 879-2968)

Usage

Access available only to NIST staff on internal Unix systems. They may access this package provided the /itl tree is cross-mounted.