Common ratio
01
公比, 常比
the constant ratio between consecutive terms
例子
In the geometric sequence 2, 6, 18, 54, ..., the common ratio between consecutive terms is r=3.
在几何序列2、6、18、54、...中，连续项之间的公比是r=3。
The common ratio of a geometric sequence can be negative, indicating alternating signs between consecutive terms.
几何序列的公比可以是负的，表示连续项之间的符号交替。
