

SUBROUTINE PDDTTRSV(  UPLO, TRANS, N, NRHS, DL, D, DU, JA, DESCA, B, IB, DESCB, AF, LAF, WORK, LWORK, INFO ) 
CHARACTER TRANS, UPLO  
INTEGER IB, INFO, JA, LAF, LWORK, N, NRHS  
INTEGER DESCA( * ), DESCB( * )  
DOUBLE PRECISION AF( * ), B( * ), D( * ), DL( * ), DU( * ), WORK( * )  
PDDTTRSV solves a tridiagonal triangular system of linear equations A(1:N, JA:JA+N1) * X = B(IB:IB+N1, 1:NRHS) or
A(1:N, JA:JA+N1)^T * X = B(IB:IB+N1, 1:NRHS)where A(1:N, JA:JA+N1) is a tridiagonal
triangular matrix factor produced by the
Gaussian elimination code PD@(dom_pre)TTRF
and is stored in A(1:N,JA:JA+N1) and AF.
The matrix stored in A(1:N, JA:JA+N1) is either
upper or lower triangular according to UPLO,
and the choice of solving A(1:N, JA:JA+N1) or A(1:N, JA:JA+N1)^T is dictated by the user by the parameter TRANS.Routine PDDTTRF MUST be called first.
ScaLAPACK version 1.7  PDDTTRSV (l)  13 August 2001 
Visit the GSP FreeBSD Man Page Interface.
Output converted with manServer 1.07.