FunctionBasis.DerivativesAt Method

public DenseVector<double> DerivativesAt(
	double x
)

Public Function DerivativesAt ( 
	x As Double
) As DenseVector(Of Double)

public:
DenseVector<double>^ DerivativesAt(
	double x
)

member DerivativesAt : 
        x : float -> DenseVector<float> 

Parameters

x  Double

A real number.

Return Value

This method creates a new Vector every time it is called. In some situations, it may be more efficient to call the FillDerivatives(Double, DenseVector<Double>) method instead.

If no derivative functions have been defined for the member functions, the derivatives are approximated numerically.

Reference