Module SSYR2 in IMSLS

• IMSLS Information

• Components
  • Documentation from ITL
  • Example from ITL

SSYR2

 
Perform the rank-two symmetric matrix update A = A + alpha*x*trans(y) +
alpha*y*trans(x), where A is a symmetric matrix, and trans( ) represents the
transpose of the vectors.
 
Classes  :  D1b5 . Matrix addition, subtraction
 
Type     : Fortran subroutine in IMSLS library.
Access   : Proprietary. Many implementations available.
Precision: Single.
 
Usage    : CALL SSYR2 (UPLO, N, ALPHA, X, INCX, Y, INCY, A, LDA)
 
Details  : Documentation Example
Sites    : (1) ITL
 

Implementation of SSYR2 from IMSLS on ITL

 
ITL:       Unix Workstation Network, National Institute of Standards and
           Technology (NIST), Gaithersburg, MD. Available to NIST staff.
 
Precision: Single. (Double: DSYR2)
 
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/ssyr2
   Example      : cat
                  /home/fetch/Subjects/Math-Stat-Software/imsl/Examples/ssyr2