Returns the logarithm of a complex number with base 2. Learn more.
IMLOG2(value) is a function used in Google Sheets to calculate the logarithm of a complex number to the base 2.
The "IM" prefix in the function name stands for "imaginary" and indicates that the function is designed to handle complex numbers. The logarithm of a complex number is a complex number itself, and the base 2 logarithm of a complex number is the power to which 2 must be raised to give that complex number.