GS or NOT?

2008-02-06 3:23 am
0,0,0,0,0,0 is a GS or NOT?
in a mainland book, it is Not GS, but in our school one of the teachers said it was a GS
but one said NOT.

can everyone vote it? And provide resaon.

回答 (1)

2008-02-06 7:16 am
✔ 最佳答案
我個人認為不是。大陸書亦應該是正確的。因為寫書的人實力應該很高。
根據英文維基
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.
根據日文維基
等比数列(とうひすうれつ、または幾何数列(きかすうれつ)、英:geometric progression,geometric sequence)は数列で、隣り合う二項の比が項番号によらず一定であるようなものである。その比のことを公比(こうひ、英:common ratio)といい、記号 r で表す。
(等比數列意指這樣的一個數列:相鄰二項的比是一定的﹐與其項數無關。這個比叫公比﹐以r表示。
根據韓文維基
등비수열(等比數列)은 각 항이 그 앞 항과 일정한 비를 가지는 수열이다. 이 일정한 비를 공비(共比)라고 한다.
(等比數列是指:各項與前項的比是一定的一個實數序列﹐這個一定的比叫共比。)
0,0,0,0,0,0
這個數列的比是不固定的
可以是1,2,3,....
甚至可以是沒有公比﹐例如第二項和第一項的比可以取1﹐第三項和第二項的比可以取2
由此可見0,0,0,0,0,0 不是GS


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