HP MLIB User's Guide Vol. 1 7th Ed.

416 HP MLIB User’s Guide

F_STRSM/F_DTRSM/F_CTRSM/F_ZTRSM Triangular solve

A Array whose upper or lower triangle, as speciﬁed by

uplo, contains the unit, non-unit, upper or lower

triangular matrix A. The matrix size is indicated by

SIDE:

BLAS_LEFT_SIDE A is an m-by-m matrix

BLAS_RIGHT_SIDE A is an n-by-n matrix

LDA Leading dimension of array A.

For SIDE = BLAS_LEFT_SIDE, and lda < 1 or lda < m,

an error ﬂag is set and passed to the error handler.

For SIDE = BLAS_RIGHT_SIDE, and lda < 1 or lda < n,

an error ﬂag is set and passed to the error handler.

B Array containing the m by n matrix B. The

representation of the matrix entry b

i,j

in B is denoted

by B(i, j) for all (i, j) in the interval

[0...m - 1] x [0...n - 1].

LDB Leading dimension of array B.

For SIDE = BLAS_LEFT_SIDE, and ldb < 1 or ldb < m,

an error ﬂag is set and passed to the error handler.

For SIDE = BLAS_LEFT_SIDE, and ldb < 1 or ldb < m,

an error ﬂag is set and passed to the error handler.

Output B The updated m-by-n matrix replaces the input.