Created
February 25, 2010 20:09
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| class Integer | |
| def collatz | |
| if self > 1 | |
| if self.even? | |
| number = (self / 2) | |
| else | |
| number = (self * 3 + 1) | |
| end | |
| number.collatz | |
| return number | |
| end | |
| end | |
| end |
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| ~/code $ irb -r collatz.rb | |
| >> 27.collatz | |
| => 82 |
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