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**NAME**

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

**SYNOPSIS**

SUBROUTINE PDPTSV( N, NRHS, D, E, JA, DESCA, B, IB, DESCB, WORK, LWORK, INFO ) INTEGER IB, INFO, JA, LWORK, N, NRHS INTEGER DESCA( * ), DESCB( * ) DOUBLE PRECISION B( * ), D( * ), E( * ), WORK( * )

**PURPOSE**

PDPTSV solves a system of linear equations where A(1:N, JA:JA+N-1) is an N-by-N real tridiagonal symmetric positive definite distributed matrix. Cholesky factorization is used to factor a reordering of the matrix into L L'. See PDPTTRF and PDPTTRS for details.