PDGBTRS - solve a system of linear equations A(1:N, JA:JA+N-1) * X = B(IB:IB+N-1, 1:NRHS)

       PDGBTRS - solve a system of linear equations   A(1:N, JA:JA+N-1) * X = B(IB:IB+N-1, 1:NRHS)

       PDGBTRS solves a system of linear equations
                                         or
                 A(1:N, JA:JA+N-1)' * X = B(IB:IB+N-1, 1:NRHS)

       where A(1:N, JA:JA+N-1) is the matrix used to produce the factors stored in A(1:N,JA:JA+N-1)  and  AF  by
       PDGBTRF.
       A(1:N, JA:JA+N-1) is an N-by-N real
       banded distributed
       matrix with bandwidth BWL, BWU.

       Routine PDGBTRF MUST be called first.

LAPACK version 1.5                                 12 May 1997                                        PDGBTRS(l)

       SUBROUTINE PDGBTRS( TRANS,  N,  BWL,  BWU,  NRHS, A, JA, DESCA, IPIV, B, IB, DESCB, AF, LAF, WORK, LWORK,
                           INFO )

           CHARACTER       TRANS

           INTEGER         BWU, BWL, IB, INFO, JA, LAF, LWORK, N, NRHS

           INTEGER         DESCA( * ), DESCB( * ), IPIV(*)

           DOUBLE          PRECISION A( * ), AF( * ), B( * ), WORK( * )