Module SSYR2K in IMSLM

• IMSLM Information

• Components
  • Documentation from ITL
  • Example from ITL

SSYR2K

 
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.
 
Classes  :  D1b5 . Matrix addition, subtraction
 
Type     : Fortran subroutine in IMSLM library.
Access   : Proprietary. Many implementations available.
Precision: Single.
 
Usage    : CALL SSYR2K (UPLO, TRANS, N, K, ALPHA, A, LDA, B, LDB, BETA, C, LDC)
 
Details  : Documentation Example
Sites    : (1) ITL
 

Implementation of SSYR2K from IMSLM on ITL

 
ITL:       Unix Workstation Network, National Institute of Standards and
           Technology (NIST), Gaithersburg, MD. Available to NIST staff.
 
Precision: Single. (Double: DSYR2K)
 
Access available only to NIST staff on internal Unix systems. They may access this
package provided the /itl tree is cross-mounted.
 
   Link         : Login to spruce.nist.gov and see ITL How-To for
                  information on how to setup your environment and link.
   Documentation: cat
                  /home/fetch/Subjects/Math-Stat-Software/imsl/Documentation/ssyr2k
   Example      : cat
                  /home/fetch/Subjects/Math-Stat-Software/imsl/Examples/ssyr2k