The banded linear algebraic equation subroutines provide solutions to
linear systems of equations for real positive definite symmetric band
matrices, real general tridiagonal matrices, diagonally-dominant real general
tridiagonal matrices, and real positive definite symmetric tridiagonal
matrices.
Table 55. List of Banded Linear Algebraic Equation Subroutines
| Descriptive Name | Long-Precision Subroutine | Page |
|---|---|---|
| Positive Definite Symmetric Band Matrix Factorization and Solve | PDPBSV | PDPBSV--Positive Definite Symmetric Band Matrix Factorization and Solve |
| Positive Definite Symmetric Band Matrix Factorization | PDPBTRF | PDPBTRF--Positive Definite Symmetric Band Matrix Factorization |
| Positive Definite Symmetric Band Matrix Solve | PDPBTRS | PDPBTRS--Positive Definite Symmetric Band Matrix Solve |
| General Tridiagonal Matrix Factorization and Solve | PDGTSV | PDGTSV and PDDTSV--General Tridiagonal Matrix Factorization and Solve |
| General Tridiagonal Matrix Factorization | PDGTTRF | PDGTTRF and PDDTTRF--General Tridiagonal Matrix Factorization |
| General Tridiagonal Matrix Solve | PDGTTRS | PDGTTRS and PDDTTRS--General Tridiagonal Matrix Solve |
| Diagonally-Dominant General Tridiagonal Matrix Factorization and Solve | PDDTSV | PDGTSV and PDDTSV--General Tridiagonal Matrix Factorization and Solve |
| Diagonally-Dominant General Tridiagonal Matrix Factorization | PDDTTRF | PDGTTRF and PDDTTRF--General Tridiagonal Matrix Factorization |
| Diagonally-Dominant General Tridiagonal Matrix Solve | PDDTTRS | PDGTTRS and PDDTTRS--General Tridiagonal Matrix Solve |
| Positive Definite Symmetric Tridiagonal Matrix Factorization and Solve | PDPTSV | PDPTSV--Positive Definite Symmetric Tridiagonal Matrix Factorization and Solve |
| Positive Definite Symmetric Tridiagonal Matrix Factorization | PDPTTRF | PDPTTRF--Positive Definite Symmetric Tridiagonal Matrix Factorization |
| Positive Definite Symmetric Tridiagonal Matrix Solve | PDPTTRS | PDPTTRS--Positive Definite Symmetric Tridiagonal Matrix Solve |