cifre del periodo

English translation: numbers in the repeating pattern

GLOSSARY ENTRY (DERIVED FROM QUESTION BELOW)

Italian term or phrase:	cifre del periodo
English translation:	numbers in the repeating pattern
Entered by:	cilantro

11:31 Apr 4, 2011

Italian to English translations [PRO]
Science - Mathematics & Statistics

Italian term or phrase: cifre del periodo

A maths question from a university admissions test. Fortunately most of the test is quite generic, but there are a few maths questions in there and it has never been one of my strong points. Any help with this would be appreciated.

Quante sono le cifre del periodo del risultato decimale della divisione 10/11?

Does it just mean "decimal places?

If it's any help, the correct answer is 2.

Sonia Hill KudoZ activity Questions: 188 (none open) (1 without valid answers) (8 closed without grading) Answers: 277 United Kingdom
Local time: 08:19

number is the repeating pattern

Explanation:
Your question refers to the number of digits in the repeating pattern of a rational number

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Note added at 45 mins (2011-04-04 12:16:17 GMT)
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it's just called "the period", although that explanation is given further along in the references, for instance at the Wolfram site. After having a look in the literature, it seemed to me that period belongs in a more technical text, or in a more the in-depth explanation.

Selected response from:

cilantro
Israel
Local time: 10:19

Grading comment

Thanks so much for your explanation. I was really struggling with this one!
4 KudoZ points were awarded for this answer

Summary of answers provided

number is the repeating pattern

cilantro

Summary of reference entries provided

"3. Relazione fra il divisore e le cifre del periodo"

Dr Lofthouse

Answers

20 mins confidence:

number is the repeating pattern

How many numbers are there in the repeating pattern of the division 10/11?

Reference: http://mathworld.wolfram.com/DecimalExpansion.html

cilantro
Israel
Local time: 10:19
Specializes in field
Native speaker of:

English,

Italian
PRO pts in category: 22

Grading comment

Thanks so much for your explanation. I was really struggling with this one!

Notes to answerer

Asker: Thanks, that makes a lot of sense given that the answer is 0.9090909090.... Is this usually called the "period of repetition" in English?

Asker: Thanks. Given that this is a university test I think "period" is probably the better option, but your explanation helped me to understand what it means!

Reference comments

13 hrs

Reference: "3. Relazione fra il divisore e le cifre del periodo"

Reference information:
see p. 5 of <http://www.gruppoeratostene.com/articoli/Derive_3_progetto_A...

or para. 3 of <http://it.wikipedia.org/wiki/Numero_decimale_periodico>

Dr Lofthouse
France
Native speaker of:

English,

Italian
PRO pts in category: 4

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cifre del periodo

English translation: numbers in the repeating pattern

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English translation: numbers in the repeating pattern

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