Provided by: liblapack-doc_3.3.1-1_all

#### NAME

LAPACK-3  -  ZLA_SYRCOND_X  Compute the infinity norm condition number of  op(A) * diag(X)
where X is a COMPLEX*16 vector

#### SYNOPSIS

DOUBLE PRECISION FUNCTION ZLA_SYRCOND_X( UPLO, N, A, LDA, AF, LDAF, IPIV, X,  INFO,  WORK,
RWORK )

IMPLICIT     NONE

CHARACTER    UPLO

INTEGER      N, LDA, LDAF, INFO

INTEGER      IPIV( * )

COMPLEX*16   A( LDA, * ), AF( LDAF, * ), WORK( * ), X( * )

DOUBLE       PRECISION RWORK( * )

#### PURPOSE

ZLA_SYRCOND_X Computes the infinity norm condition number of
op(A) * diag(X) where X is a COMPLEX*16 vector.

#### ARGUMENTS

UPLO    (input) CHARACTER*1
= 'U':  Upper triangle of A is stored;
= 'L':  Lower triangle of A is stored.

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 block diagonal matrix D and the multipliers used to
obtain the factor U or L as computed by ZSYTRF.

LDAF    (input) INTEGER
The leading dimension of the array AF.  LDAF >= max(1,N).

IPIV    (input) INTEGER array, dimension (N)
Details of the interchanges and the block structure of D
as determined by ZSYTRF.

X       (input) COMPLEX*16 array, dimension (N)
The vector X in the formula op(A) * diag(X).

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.

LAPACK routine (version 3.2.1)          April 2011                     ZLA_SYRCOND_X(3lapack)