Provided by: liblapack-doc_3.3.1-1_all

#### NAME

```       LAPACK-3  -  CLA_GERCOND_C  compute  the  infinity  norm  condition  number  of   op(A)  *
inv(diag(C)) where C is a REAL vector

```

#### SYNOPSIS

```       REAL FUNCTION CLA_GERCOND_C( TRANS, N, A, LDA, AF, LDAF,  IPIV,  C,  CAPPLY,  INFO,  WORK,
RWORK )

IMPLICIT  NONE

CHARACTER TRANS

LOGICAL   CAPPLY

INTEGER   N, LDA, LDAF, INFO

INTEGER   IPIV( * )

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

REAL      C( * ), RWORK( * )

```

#### PURPOSE

```          CLA_GERCOND_C computes the infinity norm condition number of
op(A) * inv(diag(C)) where C is a REAL 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 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 array, dimension (LDAF,N)
The factors L and U from the factorization
A = P*L*U as computed by CGETRF.

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 CGETRF; row i of the matrix was interchanged
with row IPIV(i).

C       (input) REAL 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 array, dimension (2*N).
Workspace.

RWORK   (input) REAL array, dimension (N).
Workspace.

LAPACK routine (version 3.2.1)          April 2011                     CLA_GERCOND_C(3lapack)
```