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

NAME
       TESTING/LIN/clatsy.f

SYNOPSIS
   Functions/Subroutines
       subroutine clatsy (uplo, n, x, ldx, iseed)
           CLATSY

Function/Subroutine Documentation
   subroutine clatsy (character uplo, integer n, complex, dimension( ldx, * )
       x, integer ldx, integer, dimension( * ) iseed)
       CLATSY

       Purpose:


            CLATSY generates a special test matrix for the complex symmetric
            (indefinite) factorization.  The pivot blocks of the generated matrix
            will be in the following order:
               2x2 pivot block, non diagonalizable
               1x1 pivot block
               2x2 pivot block, diagonalizable
               (cycle repeats)
            A row interchange is required for each non-diagonalizable 2x2 block.

       Parameters
           UPLO

                     UPLO is CHARACTER
                     Specifies whether the generated matrix is to be upper or
                     lower triangular.
                     = 'U':  Upper triangular
                     = 'L':  Lower triangular

           N

                     N is INTEGER
                     The dimension of the matrix to be generated.

           X

                     X is COMPLEX array, dimension (LDX,N)
                     The generated matrix, consisting of 3x3 and 2x2 diagonal
                     blocks which result in the pivot sequence given above.
                     The matrix outside of these diagonal blocks is zero.

           LDX

                     LDX is INTEGER
                     The leading dimension of the array X.

           ISEED

                     ISEED is INTEGER array, dimension (4)
                     On entry, the seed for the random number generator.  The last
                     of the four integers must be odd.  (modified on exit)

       Author
           Univ. of Tennessee

           Univ. of California Berkeley

           Univ. of Colorado Denver

           NAG Ltd.

       Definition at line 88 of file clatsy.f.

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

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