table of contents
/home/abuild/rpmbuild/BUILD/lapack-3.12.0/TESTING/LIN/zsyt01.f(3) | Library Functions Manual | /home/abuild/rpmbuild/BUILD/lapack-3.12.0/TESTING/LIN/zsyt01.f(3) |
NAME¶
/home/abuild/rpmbuild/BUILD/lapack-3.12.0/TESTING/LIN/zsyt01.f
SYNOPSIS¶
Functions/Subroutines¶
subroutine ZSYT01 (uplo, n, a, lda, afac, ldafac, ipiv, c,
ldc, rwork, resid)
ZSYT01
Function/Subroutine Documentation¶
subroutine ZSYT01 (character uplo, integer n, complex*16, dimension( lda, * ) a, integer lda, complex*16, dimension( ldafac, * ) afac, integer ldafac, integer, dimension( * ) ipiv, complex*16, dimension( ldc, * ) c, integer ldc, double precision, dimension( * ) rwork, double precision resid)¶
ZSYT01
Purpose:
!> !> ZSYT01 reconstructs a complex symmetric indefinite matrix A from its !> block L*D*L' or U*D*U' factorization and computes the residual !> norm( C - A ) / ( N * norm(A) * EPS ), !> where C is the reconstructed matrix, EPS is the machine epsilon, !> L' is the transpose of L, and U' is the transpose of U. !>
Parameters
UPLO
!> UPLO is CHARACTER*1 !> Specifies whether the upper or lower triangular part of the !> complex symmetric matrix A is stored: !> = 'U': Upper triangular !> = 'L': Lower triangular !>
N
!> N is INTEGER !> The number of rows and columns of the matrix A. N >= 0. !>
A
!> A is COMPLEX*16 array, dimension (LDA,N) !> The original complex symmetric matrix A. !>
LDA
!> LDA is INTEGER !> The leading dimension of the array A. LDA >= max(1,N) !>
AFAC
!> AFAC is COMPLEX*16 array, dimension (LDAFAC,N) !> The factored form of the matrix A. AFAC contains the block !> diagonal matrix D and the multipliers used to obtain the !> factor L or U from the block L*D*L' or U*D*U' factorization !> as computed by ZSYTRF. !>
LDAFAC
!> LDAFAC is INTEGER !> The leading dimension of the array AFAC. LDAFAC >= max(1,N). !>
IPIV
!> IPIV is INTEGER array, dimension (N) !> The pivot indices from ZSYTRF. !>
C
!> C is COMPLEX*16 array, dimension (LDC,N) !>
LDC
!> LDC is INTEGER !> The leading dimension of the array C. LDC >= max(1,N). !>
RWORK
!> RWORK is DOUBLE PRECISION array, dimension (N) !>
RESID
!> RESID is DOUBLE PRECISION !> If UPLO = 'L', norm(L*D*L' - A) / ( N * norm(A) * EPS ) !> If UPLO = 'U', norm(U*D*U' - A) / ( N * norm(A) * EPS ) !>
Author
Univ. of Tennessee
Univ. of California Berkeley
Univ. of Colorado Denver
NAG Ltd.
Definition at line 123 of file zsyt01.f.
Author¶
Generated automatically by Doxygen for LAPACK from the source code.
Version 3.12.0 | LAPACK |