Discussion about math, puzzles, games and fun. Useful symbols: ÷ × ½ √ ∞ ≠ ≤ ≥ ≈ ⇒ ± ∈ Δ θ ∴ ∑ ∫ π -¹ ² ³ °

You are not logged in.

- Topics: Active | Unanswered

**mathaholic****Member**- From: Earth
- Registered: 2012-11-29
- Posts: 3,247

Can you do that? Good luck!

Mathaholic | 10th most active poster | Maker of the 350,000th post | Person | rrr's classmate

Offline

**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 107,190

**In mathematics, you don't understand things. You just get used to them.****If it ain't broke, fix it until it is.**** Always satisfy the Prime Directive of getting the right answer above all else.**

Offline

**{7/3}****Member**- Registered: 2013-02-11
- Posts: 210

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.

Offline

**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 107,190

**In mathematics, you don't understand things. You just get used to them.****If it ain't broke, fix it until it is.**** Always satisfy the Prime Directive of getting the right answer above all else.**

Offline

**{7/3}****Member**- Registered: 2013-02-11
- Posts: 210

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

Offline

**mathaholic****Member**- From: Earth
- Registered: 2012-11-29
- Posts: 3,247

:clap

Mathaholic | 10th most active poster | Maker of the 350,000th post | Person | rrr's classmate

Offline

**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 107,190

**In mathematics, you don't understand things. You just get used to them.****If it ain't broke, fix it until it is.**** Always satisfy the Prime Directive of getting the right answer above all else.**

Offline

**phrontister****Real Member**- From: The Land of Tomorrow
- Registered: 2009-07-12
- Posts: 4,460

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

Offline

**mathaholic****Member**- From: Earth
- Registered: 2012-11-29
- Posts: 3,247

Bravo! Bravo!

Mathaholic | 10th most active poster | Maker of the 350,000th post | Person | rrr's classmate

Offline

**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 107,190

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.****If it ain't broke, fix it until it is.**** Always satisfy the Prime Directive of getting the right answer above all else.**

Offline

**phrontister****Real Member**- From: The Land of Tomorrow
- Registered: 2009-07-12
- Posts: 4,460

"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

Offline

**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 107,190

**In mathematics, you don't understand things. You just get used to them.****If it ain't broke, fix it until it is.**** Always satisfy the Prime Directive of getting the right answer above all else.**

Offline

**phrontister****Real Member**- From: The Land of Tomorrow
- Registered: 2009-07-12
- Posts: 4,460

"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

Offline

**{7/3}****Member**- Registered: 2013-02-11
- Posts: 210

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

Offline

**phrontister****Real Member**- From: The Land of Tomorrow
- Registered: 2009-07-12
- Posts: 4,460

Offline

**{7/3}****Member**- Registered: 2013-02-11
- Posts: 210

9999=min(9999,99999)

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

Offline

**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 107,190

**In mathematics, you don't understand things. You just get used to them.****If it ain't broke, fix it until it is.**** Always satisfy the Prime Directive of getting the right answer above all else.**

Offline

**phrontister****Real Member**- From: The Land of Tomorrow
- Registered: 2009-07-12
- Posts: 4,460

*Last edited by phrontister (2013-05-24 04:46:50)*

Offline

**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 107,190

9(9-9+9999/√9/√9)=9999

**In mathematics, you don't understand things. You just get used to them.****If it ain't broke, fix it until it is.**** Always satisfy the Prime Directive of getting the right answer above all else.**

Offline

**phrontister****Real Member**- From: The Land of Tomorrow
- Registered: 2009-07-12
- Posts: 4,460

*Last edited by phrontister (2013-05-24 04:30:37)*

Offline

**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 107,190

9999 occurrs in the 999999999 we are using.

**In mathematics, you don't understand things. You just get used to them.****If it ain't broke, fix it until it is.**** Always satisfy the Prime Directive of getting the right answer above all else.**

Offline

**phrontister****Real Member**- From: The Land of Tomorrow
- Registered: 2009-07-12
- Posts: 4,460

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

Offline

**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 107,190

**In mathematics, you don't understand things. You just get used to them.****If it ain't broke, fix it until it is.**** Always satisfy the Prime Directive of getting the right answer above all else.**

Offline

**phrontister****Real Member**- From: The Land of Tomorrow
- Registered: 2009-07-12
- Posts: 4,460

*Last edited by phrontister (2013-05-24 22:30:15)*

Offline

**mathaholic****Member**- From: Earth
- Registered: 2012-11-29
- Posts: 3,247

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!

Mathaholic | 10th most active poster | Maker of the 350,000th post | Person | rrr's classmate

Offline