geometric series
US /ˌdʒiː.əˈmet.rɪk ˈsɪr.iːz/
UK /ˌdʒiː.əˈmet.rɪk ˈsɪə.riːz/
名詞
幾何級數, 等比級數
a mathematical series in which the ratio of each term to the preceding one is constant
範例:
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The sum of an infinite geometric series can be calculated if the common ratio is less than one.
如果公比小於1，就可以計算無窮幾何級數的和。
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In a geometric series like 1 + 2 + 4 + 8, the common ratio is 2.
在像 1 + 2 + 4 + 8 這樣的幾何級數中，公比是 2。