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May 20th, 2015, 08:57 AM   #1
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Question Infinite number such as 0.969696969696...

I have a question. Is there a name for a number such as 0.96969696... I know that this is just a repeating decimal, but is there a more specific name? My friend called it a narcissistic number, but I am not sure this is right or not. What kind of operation could produce such a number as this?
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May 20th, 2015, 09:20 AM   #2
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It's called a recurring decimal.
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May 20th, 2015, 09:34 AM   #3
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${96 \over 99} = {32 \over 33}$, I think. All recurring numbers are rational.

Narcissistic numbers are different.

Last edited by v8archie; May 20th, 2015 at 09:37 AM.
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May 26th, 2015, 08:21 AM   #4
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I suspect your friend was making a joke, based on the "69".
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May 26th, 2015, 09:18 AM   #5
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Hello, Mr Davis 97!

Quote:
Is there a name for a number such as 0.96969696... ?
What kind of operation could produce such a number as this?

Yes, it is called a repeating decimal.







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