log2 メソッド

Method that calculates the floor of the log, base 2, of 'x'. The calculation is performed in integer arithmetic, therefore, it is exact.

シンタックス

'宣言
 
Public Shared Function log2( _
   ByVal x As System.Integer _
) As System.Integer

'使用法
 
Dim x As System.Integer
Dim value As System.Integer
 
value = MathUtil.log2(x)

public static System.int log2( 
   System.int x
)

floor(log(x)/log(2)), calculated in an exact way.

参照