1) arithmetic-geometric mean sequence of numbers
等差-等比中项数列
2) geometric-arithmetic sequence
等比差数列
1.
In this paper, the sum of geometric-arithmetic sequences is given, and their simple applacations are discussed.
讨论了等比差数列的求和并由此得到几个恒等式。
3) arithmetic-harmonic mean sequence of numbers
等差-调和中项数列
4) geometric sequence of difference
阶差等比数列
5) arithmetic mean
等差中项
6) geometric mean
等比中项
补充资料：中项
在三段论的两个前提中都出现的共同概念。它作为小项和大项的中介，把两者联系起来，从而推出结论。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条