Quote:
Originally Posted by kylok
[You must be logged in to view images. Log in or Register.]
Factorial Example :
5! = 5 x 4 x 3 x 2 x 1 = 120
0! = 1
- I always just took this at face value and never bothered to look up why,
|
similar to the laws of exponents
x^0+x^1 = x^(1+0) = x^1 = x
if x^0 was defined to = 0, then the above equation wouldn't work