Provided by: liblapack-doc_3.3.1-1_all bug

NAME

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

SYNOPSIS

       REAL FUNCTION CLA_GBRCOND_X( TRANS, N, KL, KU, AB, LDAB, AFB, LDAFB, IPIV, X, INFO,  WORK,
                     RWORK )

           IMPLICIT  NONE

           CHARACTER TRANS

           INTEGER   N, KL, KU, KD, KE, LDAB, LDAFB, INFO

           INTEGER   IPIV( * )

           COMPLEX   AB( LDAB, * ), AFB( LDAFB, * ), WORK( * ), X( * )

           REAL      RWORK( * )

PURPOSE

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

        KL      (input) INTEGER
                The number of subdiagonals within the band of A.  KL >= 0.

        KU      (input) INTEGER
                The number of superdiagonals within the band of A.  KU >= 0.

        AB      (input) COMPLEX array, dimension (LDAB,N)
                On entry, the matrix A in band storage, in rows 1 to KL+KU+1.
                The j-th column of A is stored in the j-th column of the
                array AB as follows:
                AB(KU+1+i-j,j) = A(i,j) for max(1,j-KU)<=i<=min(N,j+kl)

        LDAB    (input) INTEGER
                The leading dimension of the array AB.  LDAB >= KL+KU+1.

        AFB     (input) COMPLEX array, dimension (LDAFB,N)
                Details of the LU factorization of the band matrix A, as
                computed by CGBTRF.  U is stored as an upper triangular
                band matrix with KL+KU superdiagonals in rows 1 to KL+KU+1,
                and the multipliers used during the factorization are stored
                in rows KL+KU+2 to 2*KL+KU+1.

        LDAFB   (input) INTEGER
                The leading dimension of the array AFB.  LDAFB >= 2*KL+KU+1.

        IPIV    (input) INTEGER array, dimension (N)
                The pivot indices from the factorization A = P*L*U
                as computed by CGBTRF; row i of the matrix was interchanged
                with row IPIV(i).

        X       (input) COMPLEX 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 array, dimension (2*N).
                Workspace.

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

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