ZLA_GERCOND_C
Purpose
ZLA_GERCOND_C computes the infinity norm condition number of
op(A) * inv(diag(C)) where C is a DOUBLE PRECISION vector.
op(A) * inv(diag(C)) where C is a DOUBLE PRECISION vector.
Arguments
TRANS |
(input) CHARACTER*1
Specifies the form of the system of equations:
= 'N': A * X = B (No transpose) = 'T': A**T * X = B (Transpose) = 'C': A**H * X = B (Conjugate Transpose = Transpose) |
N |
(input) INTEGER
The number of linear equations, i.e., the order of the
matrix A. N >= 0. |
A |
(input) COMPLEX*16 array, dimension (LDA,N)
On entry, the N-by-N matrix A
|
LDA |
(input) INTEGER
The leading dimension of the array A. LDA >= max(1,N).
|
AF |
(input) COMPLEX*16 array, dimension (LDAF,N)
The factors L and U from the factorization
|
A |
= P*L*U as computed by ZGETRF.
|
LDAF |
(input) INTEGER
The leading dimension of the array AF. LDAF >= max(1,N).
|
IPIV |
(input) INTEGER array, dimension (N)
The pivot indices from the factorization A = P*L*U
as computed by ZGETRF; row i of the matrix was interchanged with row IPIV(i). |
C |
(input) DOUBLE PRECISION array, dimension (N)
The vector C in the formula op(A) * inv(diag(C)).
|
CAPPLY |
(input) LOGICAL
If .TRUE. then access the vector C in the formula above.
|
INFO |
(output) INTEGER
= 0: Successful exit.
i > 0: The ith argument is invalid. |
WORK |
(input) COMPLEX*16 array, dimension (2*N).
Workspace.
|
RWORK |
(input) DOUBLE PRECISION array, dimension (N).
Workspace.
|