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标题: Counting Methods [打印本页]

作者: Jupiter    时间: 2011-7-11 17:32     标题: Counting Methods

Hello everyone,

I'm learning counting methods right now, and while I conceptually understand factorials, combinations (nCr), and permutations (nPr), I'm having a hard time understanding the theory/concept behind the "multiplication rule of counting" and "labeling".

If anyone could spare the time to explain it to me, that would be greatly appreciated.

thanks!




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