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DECHRun Method

Factors a real Hessenberg matrix with lower bandwidth information.

Namespace: Altaxo.Calc.Ode.Obsolete.Radau5
Assembly: AltaxoCore (in AltaxoCore.dll) Version: 4.8.3572.0 (4.8.3572.0)
Syntax
C#
public void Run(
	int N,
	int NDIM,
	ref double[] A,
	int offset_a,
	int LB,
	ref int[] IP,
	int offset_ip,
	ref int IER
)

Parameters

N  Int32
= ORDER OF MATRIX A.
NDIM  Int32
= DECLARED DIMENSION OF ARRAY A .
A  Double
= MATRIX TO BE TRIANGULARIZED.
offset_a  Int32
The starting offset in A.
LB  Int32
= LOWER BANDWIDTH OF A (DIAGONAL IS NOT COUNTED, LB.GE.1).
IP  Int32
Pivot index array.
offset_ip  Int32
The starting offset in IP.
IER  Int32
= 0 IF MATRIX A IS NONSINGULAR, OR K IF FOUND TO BE SINGULAR AT STAGE K.
See Also