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Math.Log2(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 logarithm of a specified number.

public:
 static double Log2(double x);
public static double Log2(double x);
static member Log2 : double -> double
Public Shared Function Log2 (x As Double) As Double

Parameters

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 NaNNaN
Equal to PositiveInfinityPositiveInfinity

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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