Module A3 in NASHLIB

General Information

Givens reduction of a real rectangular matrix. Illustrates use of algorithm A3GR. (See J.C. Nash, Compact Numerical Methods for Computers: Linear Algebra and Function Minimization, John Wiley, New York, 1979, pages 42-43.).

Usage

CALL A3GR(M, N, A, NA, Q, NQ, EPS, SAVEQ)

Classification

D5	QR decomposition, Gram-Schmidt orthogonalization

Type

subroutine in NASHLIB package

Language

Fortran

Availability

Public domain, Portable

Precision

Single Precision

Installation on ITL; Unix Workstation Network

Location

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

Contact

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