[國中] 求等差級數的和

作者: ostracize (bucolic)   2023-04-22 10:35:14
我在某一家書局編的國中數學課本不斷地看到這種題目:求等差級數的和。
我覺得應該是求等差級數(或等差數列前幾項的和)才對。
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/
是求數列(sequence)的和(sum),不是求級數(series)的和(sum)!

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