.TH "TESTING/LIN/zlatsy.f" 3 "Version 3.12.0" "LAPACK" \" -*- nroff -*-
.ad l
.nh
.SH NAME
TESTING/LIN/zlatsy.f
.SH SYNOPSIS
.br
.PP
.SS "Functions/Subroutines"

.in +1c
.ti -1c
.RI "subroutine \fBzlatsy\fP (uplo, n, x, ldx, iseed)"
.br
.RI "\fBZLATSY\fP "
.in -1c
.SH "Function/Subroutine Documentation"
.PP 
.SS "subroutine zlatsy (character uplo, integer n, complex*16, dimension( ldx, * ) x, integer ldx, integer, dimension( * ) iseed)"

.PP
\fBZLATSY\fP 
.PP
\fBPurpose:\fP
.RS 4

.PP
.nf
!>
!> ZLATSY 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\&.
!> 
.fi
.PP
 
.RE
.PP
\fBParameters\fP
.RS 4
\fIUPLO\fP 
.PP
.nf
!>          UPLO is CHARACTER
!>          Specifies whether the generated matrix is to be upper or
!>          lower triangular\&.
!>          = 'U':  Upper triangular
!>          = 'L':  Lower triangular
!> 
.fi
.PP
.br
\fIN\fP 
.PP
.nf
!>          N is INTEGER
!>          The dimension of the matrix to be generated\&.
!> 
.fi
.PP
.br
\fIX\fP 
.PP
.nf
!>          X is COMPLEX*16 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\&.
!> 
.fi
.PP
.br
\fILDX\fP 
.PP
.nf
!>          LDX is INTEGER
!>          The leading dimension of the array X\&.
!> 
.fi
.PP
.br
\fIISEED\fP 
.PP
.nf
!>          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)
!> 
.fi
.PP
 
.RE
.PP
\fBAuthor\fP
.RS 4
Univ\&. of Tennessee 

.PP
Univ\&. of California Berkeley 

.PP
Univ\&. of Colorado Denver 

.PP
NAG Ltd\&. 
.RE
.PP

.PP
Definition at line \fB88\fP of file \fBzlatsy\&.f\fP\&.
.SH "Author"
.PP 
Generated automatically by Doxygen for LAPACK from the source code\&.