Elementary.Log1PlusX Method

public static double Log1PlusX(
	double x
)

Public Shared Function Log1PlusX ( 
	x As Double
) As Double

public:
static double Log1PlusX(
	double x
)

static member Log1PlusX : 
        x : float -> float 

Parameters

x  Double

A real number greater than -1.

Return Value

For small values of x, the logarithm of 1 + x is close to zero. When the logarithm is evaluated directly, this can cause significant round-off error. This function resolves this problem by using a direct approximations for x close to 1.

Reference