LOG2

Description

Returns the natural logarithm of x to base 2.

Syntax

LOG2(<x>)

Parameters

Parameter	Description
<x>	Antilogarithm should be greater than 0

Return value

Returns a floating-point number.

• If x IS NULL: return NULL

Example

select log2(1);

+-------------------------+
| log2(cast(1 as DOUBLE)) |
+-------------------------+
|                     0.0 |
+-------------------------+

select log2(2);

+-------------------------+
| log2(cast(2 as DOUBLE)) |
+-------------------------+
|                     1.0 |
+-------------------------+

select log2(10);

+--------------------------+
| log2(cast(10 as DOUBLE)) |
+--------------------------+
|       3.3219280948873626 |
+--------------------------+