Solve triangular band system | STBSV/DTBSV/CTBSV/ZTBSV |
subprograms, ’C’ and ’c’ have the same meaning as ’T’ and ’t’.
diag | Specifies whether the matrix is unit triangular, that is, | |
| aii = 1, or not: |
|
| ’N’ or ’n’ | The diagonal of A is stored in the |
|
| array |
| ’U’ or ’u’ | The diagonal of A consists of unstored |
|
| ones |
| When diag is supplied as ’U’ or ’u’, diagonal elements of | |
| A are not referenced, but space must be reserved for | |
| them. |
|
n | Number of rows and columns in matrix A, n ≥ 0. If | |
| n = 0, the subprograms do not reference ab or x. | |
kd | The number of nonzero diagonals above or below the | |
| principal diagonal. If uplo is supplied as ’U’ or ’u’, kd | |
| specifies the number of nonzero diagonals above the | |
| principal diagonal. If uplo is supplied as ’L’ or ’l’, kd | |
| specifies the number of nonzero diagonals below the | |
| principal diagonal. | |
Chapter 3 Basic Matrix Operations 305