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とうひすうれつ 等比数列
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Noun
1. geometric progression; geometric sequence​Mathematics
Wikipedia definition
2. Geometric progression​of the sequence, a number that it will forever approach but never touch:,, and, respectively. ]] In mathematics, a geometric progression, also known as a geometric sequence, is a sequence of numbers where each term after the first is found by multiplying the previous one by a fixed non-zero number called the common ratio. For example, the sequence 2, 6, 18, 54, ... is a geometric progression with common ratio 3. Similarly 10, 5, 2.5, 1.25, ... is a geometric sequence with common ratio 1/2.
Read “Geometric progression” on English Wikipedia
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