Created
October 30, 2011 14:56
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| def factorial(number) | |
| number.downto(1).inject(:*) | |
| end |
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
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| class Integer | |
| def factorial | |
| self.downto(1).inject(:*) | |
| end | |
| end |
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