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Talk:Casting out nines: Difference between revisions
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: dead code removed. -- [[User:Gerard Schildberger|Gerard Schildberger]] 21:02, 13 July 2012 (UTC)
I think the task description could be simply:
Write a procedure (say co9(x)) which implements Casting Out Nines by returning the checksum for x. Demonstrate that for a given range of values, the procedure can be used to generate a subset of values with the property co9(k) = co9(k2), containing all the Kaprekar in the range.
[[User:Markhobley|Markhobley]] 16:33, 30 January 2013 (UTC)
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