[国中] 求等差级数的和

楼主: ostracize (bucolic)   2023-04-22 10:35:14
我在某一家书局编的国中数学课本不断地看到这种题目:求等差级数的和。
我觉得应该是求等差级数(或等差数列前几项的和)才对。
Solved Example Using Sum of Arithmetic Sequence Formula
Question: Find the sum of the first 30 terms of the sequence 1, 3, 5, 7, 9 …

https://byjus.com/sum-of-arithmetic-sequence-formula/
是求数列(sequence)的和(sum),不是求级数(series)的和(sum)!

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