.TH "SRC/zsyswapr.f" 3 "Version 3.12.0" "LAPACK" \" -*- nroff -*- .ad l .nh .SH NAME SRC/zsyswapr.f .SH SYNOPSIS .br .PP .SS "Functions/Subroutines" .in +1c .ti -1c .RI "subroutine \fBzsyswapr\fP (uplo, n, a, lda, i1, i2)" .br .RI "\fBZSYSWAPR\fP " .in -1c .SH "Function/Subroutine Documentation" .PP .SS "subroutine zsyswapr (character uplo, integer n, complex*16, dimension( lda, * ) a, integer lda, integer i1, integer i2)" .PP \fBZSYSWAPR\fP .PP \fBPurpose:\fP .RS 4 .PP .nf ZSYSWAPR applies an elementary permutation on the rows and the columns of a symmetric matrix\&. .fi .PP .RE .PP \fBParameters\fP .RS 4 \fIUPLO\fP .PP .nf UPLO is CHARACTER*1 Specifies whether the details of the factorization are stored as an upper or lower triangular matrix\&. = 'U': Upper triangular, form is A = U*D*U**T; = 'L': Lower triangular, form is A = L*D*L**T\&. .fi .PP .br \fIN\fP .PP .nf N is INTEGER The order of the matrix A\&. N >= 0\&. .fi .PP .br \fIA\fP .PP .nf A is COMPLEX*16 array, dimension (LDA,*) On entry, the N-by-N matrix A\&. On exit, the permuted matrix where the rows I1 and I2 and columns I1 and I2 are interchanged\&. If UPLO = 'U', the interchanges are applied to the upper triangular part and the strictly lower triangular part of A is not referenced; if UPLO = 'L', the interchanges are applied to the lower triangular part and the part of A above the diagonal is not referenced\&. .fi .PP .br \fILDA\fP .PP .nf LDA is INTEGER The leading dimension of the array A\&. LDA >= max(1,N)\&. .fi .PP .br \fII1\fP .PP .nf I1 is INTEGER Index of the first row to swap .fi .PP .br \fII2\fP .PP .nf I2 is INTEGER Index of the second row to swap .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 \fB99\fP of file \fBzsyswapr\&.f\fP\&. .SH "Author" .PP Generated automatically by Doxygen for LAPACK from the source code\&.