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笔者最近对递推函数的周期作了些探究,得到了一组十分优美的结论,且在国内外数学竞赛中有着广泛的用途,在此给出来与读者共赏.
The author recently made some explorations on the cycle of recursive functions, and obtained a very elegant set of conclusions. It has been widely used in mathematics competitions at home and abroad, and is given here to share with readers.