DTRSMRun Method

public void Run(
	string SIDE,
	string UPLO,
	string TRANSA,
	string DIAG,
	int M,
	int N,
	double ALPHA,
	double[] A,
	int offset_a,
	int LDA,
	ref double[] B,
	int offset_b,
	int LDB
)

Public Sub Run ( 
	SIDE As String,
	UPLO As String,
	TRANSA As String,
	DIAG As String,
	M As Integer,
	N As Integer,
	ALPHA As Double,
	A As Double(),
	offset_a As Integer,
	LDA As Integer,
	ByRef B As Double(),
	offset_b As Integer,
	LDB As Integer
)

Parameters

SIDE  String

- CHARACTER*1. On entry, SIDE specifies whether op( A ) appears on the left or right of X as follows: SIDE = 'L' or 'l' op( A )*X = alpha*B. SIDE = 'R' or 'r' X*op( A ) = alpha*B. Unchanged on exit.

UPLO  String

- CHARACTER*1. On entry, UPLO specifies whether the matrix A is an upper or lower triangular matrix as follows: UPLO = 'U' or 'u' A is an upper triangular matrix. UPLO = 'L' or 'l' A is a lower triangular matrix. Unchanged on exit.

TRANSA  String

- CHARACTER*1. On entry, TRANSA specifies the form of op( A ) to be used in the matrix multiplication as follows: TRANSA = 'N' or 'n' op( A ) = A. TRANSA = 'T' or 't' op( A ) = A'. TRANSA = 'C' or 'c' op( A ) = A'. Unchanged on exit.

DIAG  String

- CHARACTER*1. On entry, DIAG specifies whether or not A is unit triangular as follows: DIAG = 'U' or 'u' A is assumed to be unit triangular. DIAG = 'N' or 'n' A is not assumed to be unit triangular. Unchanged on exit.

M  Int32

- INTEGER. On entry, M specifies the number of rows of B. M must be at least zero. Unchanged on exit.

N  Int32

- INTEGER. On entry, N specifies the number of columns of B. N must be at least zero. Unchanged on exit.

ALPHA  Double

- DOUBLE PRECISION. On entry, ALPHA specifies the scalar alpha. When alpha is zero then A is not referenced and B need not be set before entry. Unchanged on exit.

A  Double

- DOUBLE PRECISION array of DIMENSION ( LDA, k ), where k is m when SIDE = 'L' or 'l' and is n when SIDE = 'R' or 'r'. Before entry with UPLO = 'U' or 'u', the leading k by k upper triangular part of the array A must contain the upper triangular matrix and the strictly lower triangular part of A is not referenced. Before entry with UPLO = 'L' or 'l', the leading k by k lower triangular part of the array A must contain the lower triangular matrix and the strictly upper triangular part of A is not referenced. Note that when DIAG = 'U' or 'u', the diagonal elements of A are not referenced either, but are assumed to be unity. Unchanged on exit.

offset_a  Int32

 

LDA  Int32

- INTEGER. On entry, LDA specifies the first dimension of A as declared in the calling (sub) program. When SIDE = 'L' or 'l' then LDA must be at least max( 1, m ), when SIDE = 'R' or 'r' then LDA must be at least max( 1, n ). Unchanged on exit.

B  Double

- DOUBLE PRECISION array of DIMENSION ( LDB, n ). Before entry, the leading m by n part of the array B must contain the right-hand side matrix B, and on exit is overwritten by the solution matrix X.

offset_b  Int32

 

LDB  Int32

- INTEGER. On entry, LDB specifies the first dimension of B as declared in the calling (sub) program. LDB must be at least max( 1, m ). Unchanged on exit.

Reference