table of contents
/home/abuild/rpmbuild/BUILD/lapack-3.12.0/TESTING/LIN/zspt03.f(3) | Library Functions Manual | /home/abuild/rpmbuild/BUILD/lapack-3.12.0/TESTING/LIN/zspt03.f(3) |
NAME¶
/home/abuild/rpmbuild/BUILD/lapack-3.12.0/TESTING/LIN/zspt03.f
SYNOPSIS¶
Functions/Subroutines¶
subroutine ZSPT03 (uplo, n, a, ainv, work, ldw, rwork,
rcond, resid)
ZSPT03
Function/Subroutine Documentation¶
subroutine ZSPT03 (character uplo, integer n, complex*16, dimension( * ) a, complex*16, dimension( * ) ainv, complex*16, dimension( ldw, * ) work, integer ldw, double precision, dimension( * ) rwork, double precision rcond, double precision resid)¶
ZSPT03
Purpose:
!> !> ZSPT03 computes the residual for a complex symmetric packed matrix !> times its inverse: !> norm( I - A*AINV ) / ( N * norm(A) * norm(AINV) * EPS ), !> where EPS is the machine epsilon. !>
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 (N*(N+1)/2) !> The original complex symmetric matrix A, stored as a packed !> triangular matrix. !>
AINV
!> AINV is COMPLEX*16 array, dimension (N*(N+1)/2) !> The (symmetric) inverse of the matrix A, stored as a packed !> triangular matrix. !>
WORK
!> WORK is COMPLEX*16 array, dimension (LDW,N) !>
LDW
!> LDW is INTEGER !> The leading dimension of the array WORK. LDW >= max(1,N). !>
RWORK
!> RWORK is DOUBLE PRECISION array, dimension (N) !>
RCOND
!> RCOND is DOUBLE PRECISION !> The reciprocal of the condition number of A, computed as !> ( 1/norm(A) ) / norm(AINV). !>
RESID
!> RESID is DOUBLE PRECISION !> norm(I - A*AINV) / ( N * norm(A) * norm(AINV) * EPS ) !>
Author
Univ. of Tennessee
Univ. of California Berkeley
Univ. of Colorado Denver
NAG Ltd.
Definition at line 108 of file zspt03.f.
Author¶
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