PDPBTRS(l) | LAPACK routine (version 1.5) | PDPBTRS(l) |
NAME¶
PDPBTRS - solve a system of linear equations A(1:N, JA:JA+N-1) * X = B(IB:IB+N-1, 1:NRHS)SYNOPSIS¶
- SUBROUTINE PDPBTRS(
- UPLO, N, BW, NRHS, A, JA, DESCA, B, IB, DESCB, AF, LAF, WORK, LWORK, INFO )
PURPOSE¶
PDPBTRS solves a system of linear equationswhere 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.
A(1:N, JA:JA+N-1) is an N-by-N real
banded symmetric positive definite distributed
matrix with bandwidth BW.
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.
Routine PDPBTRF MUST be called first.
12 May 1997 | LAPACK version 1.5 |