Module SSYR2K in IMSLM

General Information

Performs one of the symmetric rank 2k operations C = alpha*A*trans(B) + alpha*B*trans(A) + beta*C, or C = alpha*trans(A)*B + alpha*trans(B)*A + beta*C, where alpha and beta are scalars, C is an n by n symmetric matrix and A and B are n by k matrices in the first case and k by n matrices in the second case. Trans represents the transpose of the matrix.

Usage

CALL SSYR2K (UPLO, TRANS, N, K, ALPHA, A, LDA, B, LDB, BETA, C, LDC)

Classification

D1b5	Matrix addition, subtraction

Type

subroutine in IMSLM package

Language

Fortran

Availability

Proprietary, Portable

Precision

Single Precision

Alternates

DSYR2K

Double 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/ssyr2k

Example

cat /home/fetch/Subjects/Math-Stat-Software/imsl/Examples/ssyr2k

To Link

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