SRC/zsyswapr.f(3) Library Functions Manual SRC/zsyswapr.f(3) NAME SRC/zsyswapr.f SYNOPSIS Functions/Subroutines subroutine zsyswapr (uplo, n, a, lda, i1, i2) ZSYSWAPR Function/Subroutine Documentation subroutine zsyswapr (character uplo, integer n, complex*16, dimension( lda, * ) a, integer lda, integer i1, integer i2) ZSYSWAPR Purpose: ZSYSWAPR applies an elementary permutation on the rows and the columns of a symmetric matrix. Parameters UPLO 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. N N is INTEGER The order of the matrix A. N >= 0. A 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. LDA LDA is INTEGER The leading dimension of the array A. LDA >= max(1,N). I1 I1 is INTEGER Index of the first row to swap I2 I2 is INTEGER Index of the second row to swap Author Univ. of Tennessee Univ. of California Berkeley Univ. of Colorado Denver NAG Ltd. Definition at line 99 of file zsyswapr.f. Author Generated automatically by Doxygen for LAPACK from the source code. LAPACK Version 3.12.0 SRC/zsyswapr.f(3)