.TH "TESTING/LIN/clatsp.f" 3 "Version 3.12.0" "LAPACK" \" -*- nroff -*- .ad l .nh .SH NAME TESTING/LIN/clatsp.f .SH SYNOPSIS .br .PP .SS "Functions/Subroutines" .in +1c .ti -1c .RI "subroutine \fBclatsp\fP (uplo, n, x, iseed)" .br .RI "\fBCLATSP\fP " .in -1c .SH "Function/Subroutine Documentation" .PP .SS "subroutine clatsp (character uplo, integer n, complex, dimension( * ) x, integer, dimension( * ) iseed)" .PP \fBCLATSP\fP .PP \fBPurpose:\fP .RS 4 .PP .nf !> !> CLATSP generates a special test matrix for the complex symmetric !> (indefinite) factorization for packed matrices\&. 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 array, dimension (N*(N+1)/2) !> The generated matrix in packed storage format\&. The matrix !> consists of 3x3 and 2x2 diagonal blocks which result in the !> pivot sequence given above\&. The matrix outside these !> diagonal blocks is zero\&. !> .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 \fB83\fP of file \fBclatsp\&.f\fP\&. .SH "Author" .PP Generated automatically by Doxygen for LAPACK from the source code\&.