Logarithm Rules and Tables

If then , where x is a real number, a and N are positive real numbers

Logarithm Rules :

	because


	Logarithm of a Complex Number: k is an integer

and

where A, B, C, D, x, a, b are positive real numbers and e = Euler's Number ( the natural number )

Also:

The logarithm in base e ( Euler's Number ) is by convention ln ;

The logarithm in base 10 is by convention lg ;