Module DGBMV in IMSLM

General Information

Perform one of the matrix-vector operations: y = alpha*A*x + beta*y or y = alpha*trans(A)*x + beta*y where A is a matrix stored in band storage mode, and trans(A) is the transpose of the matrix.

Usage

CALL DGBMV (TRANS, M, N, NLCA, NUCA, ALPHA, A, LDA, X, INCX, BETA, Y, INCY)

Classification

D1b4	Multiplication of a matrix by a vector

Type

subroutine in IMSLM package

Language

Fortran

Availability

Proprietary, Portable

Precision

Double Precision

Alternates

SGBMV

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)

Usage

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

Documentation

cat /home/fetch/Subjects/Math-Stat-Software/imsl/Documentation/dgbmv

Example

cat /home/fetch/Subjects/Math-Stat-Software/imsl/Examples/dgbmv

To Link

Login to spruce.nist.gov and see ITL How-To for information on how to setup your environment and link.