Elementary.ExpMinus1 Method

public static double ExpMinus1(
	double x
)

Public Shared Function ExpMinus1 ( 
	x As Double
) As Double

public:
static double ExpMinus1(
	double x
)

static member ExpMinus1 : 
        x : float -> float 

Parameters

x  Double

A real number.

Return Value

When x is close to zero, the exponential function is close to one. Subtracting one from this result can cause significant round-off error. This function resolves this problem by using an expression in terms of different functions for such arguments.

Reference