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