Math.Log2(Double) Method
Definition
Important
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Returns the base 2 logarithm of a specified number.
public:
static double Log2(double x);public static double Log2 (double x);static member Log2 : double -> doublePublic Shared Function Log2 (x As Double) As DoubleParameters
- x
- Double
A number whose logarithm is to be found.
Returns
One of the values in the following table.
x parameter
| Return value |
|---|---|
| Positive | The base 2 log of x; that is, log 2x.
|
| Zero | NegativeInfinity |
| Negative | NaN |
| Equal to NaN | NaN |
| Equal to PositiveInfinity | PositiveInfinity |
Remarks
Parameter x is specified as a base 10 number.
This method calls into the underlying C runtime, and the exact result or valid input range may differ between different operating systems or architectures.
Applies to
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