You must supply this method to calculate the vector of values fix and the Jacobian matrix of first derivatives ∂fi∂xj at any point x. It should be tested separately before being used in conjunction with e04hy (see the E04 class).

Syntax

C#
public delegate void E04HY_LSFUN2(
	int m,
	int n,
	double[] xc,
	double[] fvec,
	double[,] fjac
)
Visual Basic
Public Delegate Sub E04HY_LSFUN2 ( _
	m As Integer, _
	n As Integer, _
	xc As Double(), _
	fvec As Double(), _
	fjac As Double(,) _
)
Visual C++
public delegate void E04HY_LSFUN2(
	int m, 
	int n, 
	array<double>^ xc, 
	array<double>^ fvec, 
	array<double,2>^ fjac
)
F#
type E04HY_LSFUN2 = 
    delegate of 
        m : int * 
        n : int * 
        xc : float[] * 
        fvec : float[] * 
        fjac : float[,] -> unit

Parameters

m
Type: System..::..Int32
On entry: m, the numbers of residuals.
n
Type: System..::..Int32
On entry: n, the numbers of variables.
xc
Type: array<System..::..Double>[]()[][]
On entry: the point x at which the values of the fi and the ∂fi∂xj are required.
fvec
Type: array<System..::..Double>[]()[][]
On exit: fvec[i-1] must be set to the value of fi at the point x, for i=1,2,…,m.
fjac
Type: array<System..::..Double,2>[,](,)[,][,]
On exit: fjac[i-1,j-1] must be set to the value of ∂fi∂xj at the point x, for i=1,2,…,m and j=1,2,…,n.

See Also