subroutine zsyswapr (UPLO, N, A, LDA, I1, I2)
subroutine zsyswapr (characterUPLO, integerN, complex*16, dimension( lda, n )A, integerLDA, integerI1, integerI2)ZSYSWAPR Purpose:
ZSYSWAPR applies an elementary permutation on the rows and the columns of a symmetric matrix.
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,N) On entry, the NB diagonal matrix D and the multipliers used to obtain the factor U or L as computed by ZSYTRF. On exit, if INFO = 0, the (symmetric) inverse of the original matrix. If UPLO = 'U', the upper triangular part of the inverse is formed and the part of A below the diagonal is not referenced; if UPLO = 'L' the lower triangular part of the inverse is formed 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 swapI2
I2 is INTEGER Index of the second row to swap
Univ. of Tennessee Univ. of California Berkeley Univ. of Colorado Denver NAG Ltd.Date:
November 2011Definition at line 103 of file zsyswapr.f.