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

Name

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

Purpose

       PCDTTRS 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
       PCDTTRF.
       A(1:N, JA:JA+N-1) is an N-by-N complex
       tridiagonal diagonally dominant-like distributed
       matrix.

       Routine PCDTTRF MUST be called first.

LAPACK version 1.5                                 12 May 1997                                        PCDTTRS(l)

Synopsis

       SUBROUTINE PCDTTRS( TRANS, N, NRHS, DL, D, DU, JA, DESCA, B, IB, DESCB, AF, LAF, WORK, LWORK, INFO )

           CHARACTER       TRANS

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

           INTEGER         DESCA( * ), DESCB( * )

           COMPLEX         AF( * ), B( * ), D( * ), DL( * ), DU( * ), WORK( * )

See Also