public static LOG2E : Number
A mathematical constant for the base-2 logarithm of the constant e (Math.E), expressed as log2e, with an approximate value of 1.442695040888963387.
The Math.log method computes the natural logarithm of a number. Multiply the result of Math.log() by Math.LOG2E obtain the base-2 logarithm.
This example shows how to obtain the base-2 logarithm of a number:
trace(Math.log(16) * Math.LOG2E); // Output: 4