pow(num, exponent)
Facilitates exponential expressions. The pow() function is an efficient way of multiplying numbers by themselves (or their reciprocal) in large quantities. For example, pow(3, 5) is equivalent to the expression 3 * 3 * 3 * 3 * 3 and pow(3, -5) is equivalent to 1 / 3 * 3 * 3 * 3 * 3.
Type: function
Parameter(s):
- num {Number}:Base of the exponential expression. 
- exponent {Number}:Power of which to raise the base. 
Returns:
- 
    {Number}:
 the result