PCDTSV(l)

💖 PCDTSV(l) 💖

okay bestie, welcome to the PCDTSV(l) manual page! it's a LAPACK routine (version 1.5), and it's literally here to solve a linear system. main character energy only. 💅✨👑

✨ NAME ✨

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

like, that's the whole name, no cap. 🎀

🌸 SYNOPSIS 🌸

       SUBROUTINE PCDTSV( N, NRHS, DL, D, DU, JA, DESCA, B, IB, DESCB, WORK,
                          LWORK, INFO )

           INTEGER        IB, INFO, JA, LWORK, N, NRHS

           INTEGER        DESCA( * ), DESCB( * )

           COMPLEX        B( * ), D( * ), DL( * ), DU( * ), WORK( * )

these are the exact types and args, fr fr. 🫶

🦋 PURPOSE 🦋

PCDTSV solves a system of linear equations

where A(1:N, JA:JA+N-1) is an N-by-N complex tridiagonal diagonally dominant-like distributed matrix.

Gaussian elimination without pivoting is used to factor a reordering of the matrix into L U. 👑

See PCDTTRF and PCDTTRS for details. 🦋

that's it, bestie! this page is from LAPACK version 1.5, dated 12 May 1997, and it's the PCDTSV(l) manual page. periodt. 💖✨🎀