Module ZHER2 in IMSLS

• IMSLS Information

• Components
  • Documentation from ITL
  • Example from ITL

ZHER2

 
Perform a rank-two matrix update to the Hermitian matrix A, A = A +
alpha*x*ctrans(y) + conjg(alpha)*y*ctrans(x). Here ctrans( ) represents the
conjugate transpose of the vectors.
 
Classes  :  D1b5 . Matrix addition, subtraction
 
Type     : Fortran subroutine in IMSLS library.
Access   : Proprietary. Many implementations available.
Precision: Double.
 
Usage    : CALL CHER2 (UPLO, N, ALPHA, X, INCX, Y, INCY, A, LDA)
 
Details  : Documentation Example
Sites    : (1) ITL
 

Implementation of ZHER2 from IMSLS on ITL

 
ITL:       Unix Workstation Network, National Institute of Standards and
           Technology (NIST), Gaithersburg, MD. Available to NIST staff.
 
Precision: Double. (Single: CHER2)
 
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/zher2
   Example      : cat
                  /home/fetch/Subjects/Math-Stat-Software/imsl/Examples/zher2