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单词 periodic point
释义

periodic point

Given a function f:X→X of a set X, then x in X is a periodic point if the sequence

eventually returns to x. (Here fk(x) denotes k applications of f to x.) The least positive n such that fn(x) = x is called the period of x and

is called the orbit of x.

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更新时间:2025/4/30 4:15:31