Math.Log2(Double) Method

Reference

Definition

Namespace:: System

Assembly:: System.Runtime.dll

Assembly:: System.Runtime.Extensions.dll

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

Double

One of the values in the following table.

`x` parameter	Return value
Positive	The base 2 log of `x`; that is, log 2`x`.
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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