Returns the exponential function minus 1.

Namespace: Extreme.Mathematics
Assembly: Extreme.Numerics (Extreme.Numerics)

Syntax

Visual Basic (Declaration)
Public Shared Function ExpMinus1 ( _
	x As Double _
) As Double
C#
public static double ExpMinus1 (
	double x
)
C++
public:
static double ExpMinus1 (
	double x
)

Parameters

x (System.Double)
A real number.

Return Value

The exponential function minus 1.

Remarks

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 a direct approximations for arguments close to 0.