Talk:Casting out nines: Difference between revisions
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:: Given two numbers which mark the beginning and end of a range of integers [LO,HI], and an integer base (BASE), return the integers which fall in that range where the remainder after dividing the number by BASE-1 is the same as the remainder after dividing the square of the number by BASE-1. |
:: Given two numbers which mark the beginning and end of a range of integers [LO,HI], and an integer base (BASE), return the integers which fall in that range where the remainder after dividing the number by BASE-1 is the same as the remainder after dividing the square of the number by BASE-1. |
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::: That is the test, but I also want to keep the explanation of why we are doing this. Note that Ledrug has implemented the test as ((k*k) - k)%(Base - 1) at http://rosettacode.org/wiki/Kaprekar_numbers#C which is another variation. --[[User:Nigel Galloway|Nigel Galloway]] 13:03, 27 June 2012 (UTC) |
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: --[[User:Rdm|Rdm]] 14:02, 26 June 2012 (UTC) |
: --[[User:Rdm|Rdm]] 14:02, 26 June 2012 (UTC) |
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