无穷序列是指成员数量无穷多的序列,是一个建立了排列关系(有序)的无穷集合。例如:
- 自然数序列:N=1,2,3,4,……
- 奇数序列:2N-1=1,3,5,7,……
- 偶数序列:2N=2,4,6,8,……
- 斐波那契序列:F=1,1,2,3,5,8,……
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