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

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

       PSGBTRS 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
       PSGBTRF.
       A(1:N, JA:JA+N-1) is an N-by-N real
       banded distributed
       matrix with bandwidth BWL, BWU.

       Routine PSGBTRF MUST be called first.

LAPACK version 1.5                                 12 May 1997                                        PSGBTRS(l)

       SUBROUTINE PSGBTRS( 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(*)

           REAL            A( * ), AF( * ), B( * ), WORK( * )