等比数列计算器

输入计算

First Term (a):

Common Ratio (r):

Number of Terms (n):

计算 清除

数学公式

结果

Geometric Sequence

Terms: 1, 2, 4, 8, 16

Sum: 31

First Term (a)	1
Common Ratio (r)	2
Number of Terms (n)	5
Last Term	16