TESTING/LIN/zsyt02.f(3)    Library Functions Manual    TESTING/LIN/zsyt02.f(3)

NAME
       TESTING/LIN/zsyt02.f

SYNOPSIS
   Functions/Subroutines
       subroutine zsyt02 (uplo, n, nrhs, a, lda, x, ldx, b, ldb, rwork, resid)
           ZSYT02

Function/Subroutine Documentation
   subroutine zsyt02 (character uplo, integer n, integer nrhs, complex*16,
       dimension( lda, * ) a, integer lda, complex*16, dimension( ldx, * ) x,
       integer ldx, complex*16, dimension( ldb, * ) b, integer ldb, double
       precision, dimension( * ) rwork, double precision resid)
       ZSYT02

       Purpose:


            ZSYT02 computes the residual for a solution to a complex symmetric
            system of linear equations  A*x = b:

               RESID = norm(B - A*X) / ( norm(A) * norm(X) * EPS ),

            where EPS is the machine epsilon.

       Parameters
           UPLO

                     UPLO is CHARACTER*1
                     Specifies whether the upper or lower triangular part of the
                     symmetric matrix A is stored:
                     = 'U':  Upper triangular
                     = 'L':  Lower triangular

           N

                     N is INTEGER
                     The number of rows and columns of the matrix A.  N >= 0.

           NRHS

                     NRHS is INTEGER
                     The number of columns of B, the matrix of right hand sides.
                     NRHS >= 0.

           A

                     A is COMPLEX*16 array, dimension (LDA,N)
                     The original complex symmetric matrix A.

           LDA

                     LDA is INTEGER
                     The leading dimension of the array A.  LDA >= max(1,N)

           X

                     X is COMPLEX*16 array, dimension (LDX,NRHS)
                     The computed solution vectors for the system of linear
                     equations.

           LDX

                     LDX is INTEGER
                     The leading dimension of the array X.   LDX >= max(1,N).

           B

                     B is COMPLEX*16 array, dimension (LDB,NRHS)
                     On entry, the right hand side vectors for the system of
                     linear equations.
                     On exit, B is overwritten with the difference B - A*X.

           LDB

                     LDB is INTEGER
                     The leading dimension of the array B.  LDB >= max(1,N).

           RWORK

                     RWORK is DOUBLE PRECISION array, dimension (N)

           RESID

                     RESID is DOUBLE PRECISION
                     The maximum over the number of right hand sides of
                     norm(B - A*X) / ( norm(A) * norm(X) * EPS ).

       Author
           Univ. of Tennessee

           Univ. of California Berkeley

           Univ. of Colorado Denver

           NAG Ltd.

       Definition at line 125 of file zsyt02.f.

Author
       Generated automatically by Doxygen for LAPACK from the source code.

LAPACK                          Version 3.12.0         TESTING/LIN/zsyt02.f(3)