DVSTEPRun Method

public void Run(
	ref double[] Y,
	int offset_y,
	ref double[] YH,
	int offset_yh,
	int LDYH,
	ref double[] YH1,
	int offset_yh1,
	double[] EWT,
	int offset_ewt,
	ref double[] SAVF,
	int offset_savf,
	double[] VSAV,
	int offset_vsav,
	ref double[] ACOR,
	int offset_acor,
	ref double[] WM,
	int offset_wm,
	ref int[] IWM,
	int offset_iwm,
	IFEX F,
	IJEX JAC,
	IFEX PSOL,
	IDVNLSD VNLS,
	double[] RPAR,
	int offset_rpar,
	int[] IPAR,
	int offset_ipar
)

Public Sub Run ( 
	ByRef Y As Double(),
	offset_y As Integer,
	ByRef YH As Double(),
	offset_yh As Integer,
	LDYH As Integer,
	ByRef YH1 As Double(),
	offset_yh1 As Integer,
	EWT As Double(),
	offset_ewt As Integer,
	ByRef SAVF As Double(),
	offset_savf As Integer,
	VSAV As Double(),
	offset_vsav As Integer,
	ByRef ACOR As Double(),
	offset_acor As Integer,
	ByRef WM As Double(),
	offset_wm As Integer,
	ByRef IWM As Integer(),
	offset_iwm As Integer,
	F As IFEX,
	JAC As IJEX,
	PSOL As IFEX,
	VNLS As IDVNLSD,
	RPAR As Double(),
	offset_rpar As Integer,
	IPAR As Integer(),
	offset_ipar As Integer
)

Parameters

Y  Double

= An array of length N used for the dependent variable vector.

offset_y  Int32

 

YH  Double

= An LDYH by LMAX array containing the dependent variables and their approximate scaled derivatives, where LMAX = MAXORD + 1. YH(i,j+1) contains the approximate j-th derivative of y(i), scaled by H**j/factorial(j) (j = 0,1,...,NQ). On entry for the first step, the first two columns of YH must be set from the initial values.

offset_yh  Int32

 

LDYH  Int32

= A constant integer .ge. N, the first dimension of YH. N is the number of ODEs in the system.

YH1  Double

= A one-dimensional array occupying the same space as YH.

offset_yh1  Int32

 

EWT  Double

= An array of length N containing multiplicative weights for local error measurements. Local errors in y(i) are compared to 1.0/EWT(i) in various error tests.

offset_ewt  Int32

 

SAVF  Double

= An array of working storage, of length N. also used for input of YH(*,MAXORD+2) when JSTART = -1 and MAXORD .lt. the current order NQ.

offset_savf  Int32

 

VSAV  Double

= A work array of length N passed to subroutine VNLS.

offset_vsav  Int32

 

ACOR  Double

= A work array of length N, used for the accumulated corrections. On a successful return, ACOR(i) contains the estimated one-step local error in y(i).

offset_acor  Int32

 

WM  Double

 

offset_wm  Int32

 

IWM  Int32

 

offset_iwm  Int32

 

F  IFEX

= Dummy name for the user supplied subroutine for f.

JAC  IJEX

= Dummy name for the user supplied Jacobian subroutine.

PSOL  IFEX

= Dummy name for the subroutine passed to VNLS, for possible use there.

VNLS  IDVNLSD

= Dummy name for the nonlinear system solving subroutine, whose real name is dependent on the method used.

RPAR  Double

 

offset_rpar  Int32

 

IPAR  Int32

 

offset_ipar  Int32

 

Reference