.TH PDPBTRS l "12 May 1997" "LAPACK version 1.5" "LAPACK routine (version 1.5)"
.SH NAME
PDPBTRS - solve a system of linear equations   A(1:N, JA:JA+N-1) * X = B(IB:IB+N-1, 1:NRHS)
.SH SYNOPSIS
.TP 20
SUBROUTINE PDPBTRS(
UPLO, N, BW, NRHS, A, JA, DESCA, B, IB, DESCB,
AF, LAF, WORK, LWORK, INFO )
.TP 20
.ti +4
CHARACTER
UPLO
.TP 20
.ti +4
INTEGER
BW, IB, INFO, JA, LAF, LWORK, N, NRHS
.TP 20
.ti +4
INTEGER
DESCA( * ), DESCB( * )
.TP 20
.ti +4
DOUBLE
PRECISION A( * ), AF( * ), B( * ), WORK( * )
.SH PURPOSE
PDPBTRS solves a system of linear equations

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 PDPBTRF.
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A(1:N, JA:JA+N-1) is an N-by-N real
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banded symmetric positive definite distributed
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matrix with bandwidth BW.
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Depending on the value of UPLO, A stores either U or L in the equn
A(1:N, JA:JA+N-1) = U'*U or L*L' as computed by PDPBTRF.
.br

Routine PDPBTRF MUST be called first.
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