LN2 (Natural Logarithm of 2) This property is used to return the value of the natural logarithm of two, which is 0.6931471805599453. As with all math properties, it is used with the Math object. syntax: Math.LN2 EXAMPLE variableOne = Math.LN2; documnet.write("The natural logarithm of two is " + variableOne); The above example will write the following to the screen "The natural logarithm of two is 0.6931471805599453".