RadialBasisFunctions.Multiquadric Method

public static RadialBasisFunction Multiquadric(
	double shape
)

Public Shared Function Multiquadric ( 
	shape As Double
) As RadialBasisFunction

public:
static RadialBasisFunction^ Multiquadric(
	double shape
)

static member Multiquadric : 
        shape : float -> RadialBasisFunction 

Parameters

shape  Double

The shape parameter ε that controls the flatness near the origin. Must be positive.

Return Value

The multiquadric kernel is a popular choice that often produces good results. It grows without bound as r increases but is globally smooth. The shape parameter ε controls the flatness near the origin.

The kernel is defined as φ(r) = √(1 + (εr)²) where ε is the shape parameter and r is the radius.

Reference