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[This documentation is for preview only, and is subject to change in later releases. Blank topics are included as placeholders.]
Returns the natural (base e) logarithm of a specified number.
Namespace: System
Assembly: mscorlib (in mscorlib.dll)
Syntax
'Declaration
Public Shared Function Log ( _
d As Double _
) As Double
public static double Log(
double d
)
public:
static double Log(
double d
)
static member Log :
d:float -> float
public static function Log(
d : double
) : double
Parameters
- d
Type: System. . :: . .Double
The number whose logarithm is to be found.
Return Value
Type: System. . :: . .Double
One of the values in the following table.
d parameter |
Return value |
|---|---|
Positive |
The natural logarithm of d; that is, ln d, or log ed |
Zero |
|
Negative |
|
Equal to NaN |
|
Equal to PositiveInfinity |
Remarks
Parameter d is specified as a base 10 number.
.NET Framework Security
- Full trust for the immediate caller. This member cannot be used by partially trusted code. For more information, see dd66cd4c-b087-415f-9c3e-94e3a1835f74.