LAPACK
3.4.2
LAPACK: Linear Algebra PACKage

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Functions/Subroutines  
DOUBLE PRECISION function  zla_hercond_c (UPLO, N, A, LDA, AF, LDAF, IPIV, C, CAPPLY, INFO, WORK, RWORK) 
ZLA_HERCOND_C computes the infinity norm condition number of op(A)*inv(diag(c)) for Hermitian indefinite matrices. 
DOUBLE PRECISION function zla_hercond_c  (  character  UPLO, 
integer  N,  
complex*16, dimension( lda, * )  A,  
integer  LDA,  
complex*16, dimension( ldaf, * )  AF,  
integer  LDAF,  
integer, dimension( * )  IPIV,  
double precision, dimension ( * )  C,  
logical  CAPPLY,  
integer  INFO,  
complex*16, dimension( * )  WORK,  
double precision, dimension( * )  RWORK  
) 
ZLA_HERCOND_C computes the infinity norm condition number of op(A)*inv(diag(c)) for Hermitian indefinite matrices.
Download ZLA_HERCOND_C + dependencies [TGZ] [ZIP] [TXT]ZLA_HERCOND_C computes the infinity norm condition number of op(A) * inv(diag(C)) where C is a DOUBLE PRECISION vector.
[in]  UPLO  UPLO is CHARACTER*1 = 'U': Upper triangle of A is stored; = 'L': Lower triangle of A is stored. 
[in]  N  N is INTEGER The number of linear equations, i.e., the order of the matrix A. N >= 0. 
[in]  A  A is COMPLEX*16 array, dimension (LDA,N) On entry, the NbyN matrix A 
[in]  LDA  LDA is INTEGER The leading dimension of the array A. LDA >= max(1,N). 
[in]  AF  AF is COMPLEX*16 array, dimension (LDAF,N) The block diagonal matrix D and the multipliers used to obtain the factor U or L as computed by ZHETRF. 
[in]  LDAF  LDAF is INTEGER The leading dimension of the array AF. LDAF >= max(1,N). 
[in]  IPIV  IPIV is INTEGER array, dimension (N) Details of the interchanges and the block structure of D as determined by CHETRF. 
[in]  C  C is DOUBLE PRECISION array, dimension (N) The vector C in the formula op(A) * inv(diag(C)). 
[in]  CAPPLY  CAPPLY is LOGICAL If .TRUE. then access the vector C in the formula above. 
[out]  INFO  INFO is INTEGER = 0: Successful exit. i > 0: The ith argument is invalid. 
[in]  WORK  WORK is COMPLEX*16 array, dimension (2*N). Workspace. 
[in]  RWORK  RWORK is DOUBLE PRECISION array, dimension (N). Workspace. 
Definition at line 139 of file zla_hercond_c.f.