System.BuiltInLog2

• Up to Parent: System

Delphi

function BuiltInLog2(X: Extended): Extended; overload;
function BuiltInLog2(X: Double): Double; overload;
function BuiltInLog2(X: Single): Single; overload;

Properties

Type	Visibility	Source	Unit	Parent
function	public	System.pas	System	System

Description

Calculates log base 2.

BuiltInLog2 returns the log base 2 of X.

Compiler Support

The following table shows which Delphi compilers support this function:

DCC32	DCC64	DCCOSX	DCCAARM	DCCIOSARM	DCCIOSARM64	DCCIOS32

See Also

• System.BuiltInLog10

• System.BuiltInLn

• System.Math.Log10

• System.Ln

• System.Math.LogN

• Mathematical Routines

• Delphi Intrinsic Routines