DTRCONRun Method

public void Run(
	string NORM,
	string UPLO,
	string DIAG,
	int N,
	double[] A,
	int offset_a,
	int LDA,
	ref double RCOND,
	ref double[] WORK,
	int offset_work,
	ref int[] IWORK,
	int offset_iwork,
	ref int INFO
)

Public Sub Run ( 
	NORM As String,
	UPLO As String,
	DIAG As String,
	N As Integer,
	A As Double(),
	offset_a As Integer,
	LDA As Integer,
	ByRef RCOND As Double,
	ByRef WORK As Double(),
	offset_work As Integer,
	ByRef IWORK As Integer(),
	offset_iwork As Integer,
	ByRef INFO As Integer
)

Parameters

NORM  String

(input) CHARACTER*1 Specifies whether the 1-norm condition number or the infinity-norm condition number is required: = '1' or 'O': 1-norm; = 'I': Infinity-norm.

UPLO  String

(input) CHARACTER*1 = 'U': A is upper triangular; = 'L': A is lower triangular.

DIAG  String

(input) CHARACTER*1 = 'N': A is non-unit triangular; = 'U': A is unit triangular.

N  Int32

(input) INTEGER The order of the matrix A. N .GE. 0.

A  Double

(input) DOUBLE PRECISION array, dimension (LDA,N) The triangular matrix A. If UPLO = 'U', the leading N-by-N upper triangular part of the array A contains the upper triangular matrix, and the strictly lower triangular part of A is not referenced. If UPLO = 'L', the leading N-by-N lower triangular part of the array A contains the lower triangular matrix, and the strictly upper triangular part of A is not referenced. If DIAG = 'U', the diagonal elements of A are also not referenced and are assumed to be 1.

offset_a  Int32

 

LDA  Int32

(input) INTEGER The leading dimension of the array A. LDA .GE. max(1,N).

RCOND  Double

(output) DOUBLE PRECISION The reciprocal of the condition number of the matrix A, computed as RCOND = 1/(norm(A) * norm(inv(A))).

WORK  Double

(workspace) DOUBLE PRECISION array, dimension (3*N)

offset_work  Int32

 

IWORK  Int32

(workspace) INTEGER array, dimension (N)

offset_iwork  Int32

 

INFO  Int32

(output) INTEGER = 0: successful exit .LT. 0: if INFO = -i, the i-th argument had an illegal value

Reference