数列求和之二——分组求和
- 时间:2020-04-06 17:43:36
- 分类:数学世界
- 阅读:141 次
在廖老师的上一讲《公式求和》之后,就是本讲《分组求和》的内容。分组求和是指把数列中的某些数通过整理,变为有规律的一组一组的数,从而快速简便地求出结果。分组求和,重在分组这一步,通过分组后,应该有利于下一步的简便计算。
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