# zlagtm.f - Man Page

## Synopsis

### Functions/Subroutines

subroutine **zlagtm** (TRANS, **N**, **NRHS**, ALPHA, DL, D, DU, X, LDX, BETA, B, **LDB**)**ZLAGTM** performs a matrix-matrix product of the form C = αAB+βC, where A is a tridiagonal matrix, B and C are rectangular matrices, and α and β are scalars, which may be 0, 1, or -1.

## Author

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## Info

Mon Jun 28 2021 Version 3.10.0 LAPACK