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Old 07-30-2007, 02:28 AM
jay_shark jay_shark is offline
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Join Date: Sep 2006
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Default Re: Numbers in a Triangle: Curious Question

Let me also clarify that you should take the greatest integer value if the number is closest to the first integer greater than x . Otherwise you use the least integer value function which is the greatest integer less than the value x .

Or, just round the number to the closest positive integer .

[sqrt(11*2)]=5 which is the 5th row .
[sqrt(10*2)] =4 which is the 4th row .
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