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## #1 2013-05-24 10:59:05

mathaholic
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### Make 9,999 using 9 nines

Can you do that? Good luck!

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## #2 2013-05-24 11:09:02

bobbym
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### Re: Make 9,999 using 9 nines

In mathematics, you don't understand things. You just get used to them.
I have the result, but I do not yet know how to get it.
All physicists, and a good many quite respectable mathematicians are contemptuous about proof.

## #3 2013-05-24 14:10:38

{7/3}
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### Re: Make 9,999 using 9 nines

999*(9+9/9)+9*9/9

There are 10 kinds of people in the world,people who understand binary and people who don't.

## #4 2013-05-24 15:14:11

bobbym
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### Re: Make 9,999 using 9 nines

In mathematics, you don't understand things. You just get used to them.
I have the result, but I do not yet know how to get it.
All physicists, and a good many quite respectable mathematicians are contemptuous about proof.

## #5 2013-05-24 16:33:57

{7/3}
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### Re: Make 9,999 using 9 nines

There are 10 kinds of people in the world,people who understand binary and people who don't.

## #6 2013-05-24 17:25:54

mathaholic
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### Re: Make 9,999 using 9 nines

:clap

246 pages on Prime Numbers Wiki (+1)

## #7 2013-05-24 18:08:33

bobbym
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### Re: Make 9,999 using 9 nines

In mathematics, you don't understand things. You just get used to them.
I have the result, but I do not yet know how to get it.
All physicists, and a good many quite respectable mathematicians are contemptuous about proof.

## #8 2013-05-24 19:09:34

phrontister
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### Re: Make 9,999 using 9 nines

Hi Bobby,

Your last solution has only eight nines.

W|A didn't like that one (can't think logically, I suppose).

M first said "General::ovfl: Overflow occurred in computation", but then it gave the answer 9999 anyway.

"The good news about computers is that they do what you tell them to do. The bad news is that they do what you tell them to do." - Ted Nelson

## #9 2013-05-24 19:16:53

mathaholic
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### Re: Make 9,999 using 9 nines

Bravo! Bravo!

246 pages on Prime Numbers Wiki (+1)

## #10 2013-05-24 19:26:25

bobbym
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### Re: Make 9,999 using 9 nines

Hi;

Yes, it did look like there were only 8 nines there. I changed it.

He was right to say overflow but of course yours is right too.

In mathematics, you don't understand things. You just get used to them.
I have the result, but I do not yet know how to get it.
All physicists, and a good many quite respectable mathematicians are contemptuous about proof.

## #11 2013-05-24 20:42:43

phrontister
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### Re: Make 9,999 using 9 nines

"The good news about computers is that they do what you tell them to do. The bad news is that they do what you tell them to do." - Ted Nelson

## #12 2013-05-24 20:52:45

bobbym
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### Re: Make 9,999 using 9 nines

In mathematics, you don't understand things. You just get used to them.
I have the result, but I do not yet know how to get it.
All physicists, and a good many quite respectable mathematicians are contemptuous about proof.

## #13 2013-05-24 21:12:09

phrontister
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### Re: Make 9,999 using 9 nines

"The good news about computers is that they do what you tell them to do. The bad news is that they do what you tell them to do." - Ted Nelson

## #14 2013-05-24 21:19:23

{7/3}
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### Re: Make 9,999 using 9 nines

There are 10 kinds of people in the world,people who understand binary and people who don't.

## #15 2013-05-24 21:21:23

phrontister
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### Re: Make 9,999 using 9 nines

"The good news about computers is that they do what you tell them to do. The bad news is that they do what you tell them to do." - Ted Nelson

## #16 2013-05-24 21:22:54

{7/3}
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### Re: Make 9,999 using 9 nines

9999=min(9999,99999)

There are 10 kinds of people in the world,people who understand binary and people who don't.

## #17 2013-05-24 21:28:23

bobbym
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### Re: Make 9,999 using 9 nines

In mathematics, you don't understand things. You just get used to them.
I have the result, but I do not yet know how to get it.
All physicists, and a good many quite respectable mathematicians are contemptuous about proof.

## #18 2013-05-24 23:22:21

phrontister
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### Re: Make 9,999 using 9 nines

Last edited by phrontister (2013-05-25 02:46:50)

"The good news about computers is that they do what you tell them to do. The bad news is that they do what you tell them to do." - Ted Nelson

## #19 2013-05-25 00:24:30

bobbym
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### Re: Make 9,999 using 9 nines

9(9-9+9999/√9/√9)=9999

In mathematics, you don't understand things. You just get used to them.
I have the result, but I do not yet know how to get it.
All physicists, and a good many quite respectable mathematicians are contemptuous about proof.

## #20 2013-05-25 02:28:54

phrontister
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### Re: Make 9,999 using 9 nines

Last edited by phrontister (2013-05-25 02:30:37)

"The good news about computers is that they do what you tell them to do. The bad news is that they do what you tell them to do." - Ted Nelson

## #21 2013-05-25 06:11:10

bobbym
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### Re: Make 9,999 using 9 nines

9999 occurrs in the 999999999 we are using.

In mathematics, you don't understand things. You just get used to them.
I have the result, but I do not yet know how to get it.
All physicists, and a good many quite respectable mathematicians are contemptuous about proof.

## #22 2013-05-25 09:27:00

phrontister
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### Re: Make 9,999 using 9 nines

Why, so it does! How did you do that?

"The good news about computers is that they do what you tell them to do. The bad news is that they do what you tell them to do." - Ted Nelson

## #23 2013-05-25 17:38:58

bobbym
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Online

### Re: Make 9,999 using 9 nines

In mathematics, you don't understand things. You just get used to them.
I have the result, but I do not yet know how to get it.
All physicists, and a good many quite respectable mathematicians are contemptuous about proof.

## #24 2013-05-25 20:29:59

phrontister
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### Re: Make 9,999 using 9 nines

Last edited by phrontister (2013-05-25 20:30:15)

"The good news about computers is that they do what you tell them to do. The bad news is that they do what you tell them to do." - Ted Nelson

## #25 2013-05-27 12:18:13

mathaholic
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### Re: Make 9,999 using 9 nines

9*9=81 (2 nines)
81*99=8,019 (4 nines)
8,019+(99*9)=8,910 (7 nines)
concat(8+1,9+0),(9,9) (9 nines)

Horray! 9,999 using 9 nines!

246 pages on Prime Numbers Wiki (+1)

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