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Math.ILogB(Double) Method
Definition
- Namespace:
- System
- Assemblies:
- netstandard.dll, System.Runtime.dll
- Assembly:
- System.Runtime.Extensions.dll
- Source:
- Math.cs
- Source:
- Math.cs
- Source:
- Math.cs
- Source:
- Math.cs
- Source:
- Math.cs
Important
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Returns the base 2 integer logarithm of a specified number.
public:
static int ILogB(double x);public static int ILogB(double x);static member ILogB : double -> intPublic Shared Function ILogB (x As Double) As IntegerParameters
- x
- Double
The number whose logarithm is to be found.
Returns
One of the values in the following table.
x parameter
| Return value |
|---|---|
| Default | The base 2 integer log of x; that is, (int)log2(x).
|
| Zero | Int32.MinValue |
| Equal to NaN or PositiveInfinity or NegativeInfinity | Int32.MaxValue |
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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