Created
August 26, 2013 19:59
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Factorial
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| # write a recursive function that brings back a factorial | |
| # | |
| # How does factorial work: | |
| # 0! = 1 #=> 1 | |
| # 1! = 1 #=> 1 | |
| # 2! = 2 * 1 #=> 2 | |
| # 3! = 3 * 2 * 1 #=> 6 | |
| # 4! = 4 * 3 * 2 * 1 #=> 24 | |
| # 5! = 5 * 4 * 3 * 2 * 1 #=> 120 |
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