zsyconv.f(3) LAPACK zsyconv.f(3)NAMEzsyconv.f-
SYNOPSIS
Functions/Subroutines
subroutine zsyconv (UPLO, WAY, N, A, LDA, IPIV, WORK, INFO)
ZSYCONV
Function/Subroutine Documentation
subroutine zsyconv (characterUPLO, characterWAY, integerN, complex*16,
dimension( lda, * )A, integerLDA, integer, dimension( * )IPIV,
complex*16, dimension( * )WORK, integerINFO)
ZSYCONV
Purpose:
ZSYCONV converts A given by ZHETRF into L and D or vice-versa.
Get nondiagonal elements of D (returned in workspace) and
apply or reverse permutation done in TRF.
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.
WAY
WAY is CHARACTER*1
= 'C': Convert
= 'R': Revert
N
N is INTEGER
The order of the matrix A. N >= 0.
A
A is COMPLEX*16 array, dimension (LDA,N)
The block diagonal matrix D and the multipliers used to
obtain the factor U or L as computed by ZSYTRF.
LDA
LDA is INTEGER
The leading dimension of the array A. LDA >= max(1,N).
IPIV
IPIV is INTEGER array, dimension (N)
Details of the interchanges and the block structure of D
as determined by ZSYTRF.
WORK
WORK is COMPLEX*16 array, dimension (N)
INFO
INFO is INTEGER
= 0: successful exit
< 0: if INFO = -i, the i-th argument had an illegal value
Author:
Univ. of Tennessee
Univ. of California Berkeley
Univ. of Colorado Denver
NAG Ltd.
Date:
November 2011
Definition at line 113 of file zsyconv.f.
Author
Generated automatically by Doxygen for LAPACK from the source code.
Version 3.4.2 Tue Sep 25 2012 zsyconv.f(3)
