等比数列
等比数列，又名几何数列。是一种特殊数列。它的特点是：从第2项起，每一项与前一项的比都是一个常数。
例如数列
。
这就是一个等比数列，因为第二项与第一项的比和第三项与第二项的比相等，都等于2，
与
的比也等于2。如2这样后一项与前一项的比称公比，符号为
。
geometric series
英汉-汉英词典
n. 几何级数,等比级数
词组 | 习惯用语
您要查找的是不是：
Geometric Series 几何级数; 等比级数; 等比数列; 几何序列;
double geometric series 双等比级数
geometric series model 几何级数模型
Infinite Geometric Series 无限几何级数；无穷等比级数
divergent geometric series 发散几何级数
m geometric series m等比级数
arithmetic geometric series 算术几何级数
geometric series distributional model 几何级数分布模型
geometrische Reihe geometric series 几何级数
geometric series n. [数] 几何级数；[数] 等比级数
中文百科
英语百科
Geometric series 等比数列
In mathematics, a geometric series is a series with a constant ratio between successive terms. For example, the series
is geometric, because each successive term can be obtained by multiplying the previous term by 1/2.
Geometric series are one of the simplest examples of infinite series with finite sums, although not all of them have this property. Historically, geometric series played an important role in the early development of calculus, and they continue to be central in the study of convergence of series. Geometric series are used throughout mathematics, and they have important applications in physics, engineering, biology, economics, computer science, queueing theory, and finance.
近义、反义、联想词
近义词
n.series
英英词典
geometric series n.
- a geometric progression written as a sum
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