Collatz conjecture: Difference between revisions
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#REDIRECT [[Hailstone sequence]] |
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{{alertbox|#ffe4e4|'''Rosetta Code is removing this draft task in favour of [[Hailstone sequence]]. DO NOT add to this page as it is going away. '''}} |
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{{draft task}} |
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These programs calculate the [[wp:Collatz conjecture|Collatz sequence]] for a given integer, and stop if 1 is reached. |
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These programs were written before this task was created; as such, the specific actual requirements of this task have not yet been determined. |
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=={{header|Befunge}}== |
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<lang befunge>&>:.:1-| |
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>3*^ @ |
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|%2: < |
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v>2/>+</lang> |
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=={{header|Excel}}== |
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In cell '''A1''', place the starting number. |
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In cell '''A2''' enter this formula '''=IF(A1/2=ROUND(A1/2,0),A1/2,A1*3+1)''' |
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Drag and copy the formula down until 4, 2, 1 |
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=={{header|Ioke}}== |
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<lang ioke>collatz = method(n, |
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n println |
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unless(n <= 1, |
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if(n even?, collatz(n / 2), collatz(n * 3 + 1))) |
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)</lang> |
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Latest revision as of 21:49, 13 November 2011
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