Sfun.Log1p Method

SfunLog1p Method

Returns log(1+x), the logarithm of (x plus 1).

Namespace: Imsl.Math
Assembly: ImslCS (in ImslCS.dll) Version: 6.5.2.0

Syntax

public static double Log1p(
	double x
)

Public Shared Function Log1p ( 
	x As Double
) As Double

public:
static double Log1p(
	double x
)

static member Log1p : 
        x : float -> float

Type: Double
A double value representing Log(1+x).

Remarks

Specifically:

${\rm Log1p}(\pm 0)$ returns $\pm 0$ .

${\rm Log1p}(-1)$ returns $-\infty$ .

${\rm Log1p}(x)$ returns NaN, if $x \lt -1$ .

${\rm Log1p}(\pm \infty)$ returns $\pm \infty$ .