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

You are not logged in.

- Topics: Active | Unanswered

**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 92,928

**New Problem:**

**A point is created at the origin and labeled O. A prime number p is picked and 2 points are created at (p,0) and (-p,0). The points are labeled B and C. Using OB and OC as the bottoms, two 5 sided regular polygons are created. They are blue in the diagram. The orange area represents the overlap between the two polygons.**

**What is the value of the Area of polygon OBGHI divided by the area of the orange polygon?**

**A says) All geometry ended when the big boys like me got into it and converted it into topology. The answer is obviously 5.**

**B says) That ain't right. Even a bumpkin knows the answer ain't 5.**

**C says) A sure is fast and accurate too. A, do you train people and what do you charge?**

**D says) What are we talking about? I got 5.000000000000000000000000000000000000000000000000000000000001 so the answer is close to 5 but not 5.**

**E says) I am not sure about the bumpkin remark but the answer has a radical in it.**

**A says) E, you would do well to take some lessons from me instead of listening to that bumpkin over there.**

**A wild brawl ensues and we have no interest in it. The question remains... can you find the answer?**

**In mathematics, you don't understand things. You just get used to them.**

**I agree with you regarding the satisfaction and importance of actually computing some numbers. I can't tell you how often I see time and money wasted because someone didn't bother to run the numbers.**

Offline

**phrontister****Real Member**- From: The Land of Tomorrow
- Registered: 2009-07-12
- Posts: 3,979

Hi Bobby,

"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: 92,928

Hi;

**In mathematics, you don't understand things. You just get used to them.**

**I agree with you regarding the satisfaction and importance of actually computing some numbers. I can't tell you how often I see time and money wasted because someone didn't bother to run the numbers.**

Offline

**phrontister****Real Member**- From: The Land of Tomorrow
- Registered: 2009-07-12
- Posts: 3,979

Hi Bobby,

"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: 92,928

Hi;

**In mathematics, you don't understand things. You just get used to them.**

**I agree with you regarding the satisfaction and importance of actually computing some numbers. I can't tell you how often I see time and money wasted because someone didn't bother to run the numbers.**

Offline

**phrontister****Real Member**- From: The Land of Tomorrow
- Registered: 2009-07-12
- Posts: 3,979

Hi,

*Last edited by phrontister (2014-03-15 04:50:17)*

"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: 92,928

Hi;

**In mathematics, you don't understand things. You just get used to them.**

Offline

**phrontister****Real Member**- From: The Land of Tomorrow
- Registered: 2009-07-12
- Posts: 3,979

Good morning, Bobby.

*Last edited by phrontister (2014-03-15 13:26:16)*

Offline

**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 92,928

Hi;

**In mathematics, you don't understand things. You just get used to them.**

Offline

**phrontister****Real Member**- From: The Land of Tomorrow
- Registered: 2009-07-12
- Posts: 3,979

No probs. Just don't strain anything...except maybe the tea leaves during a cuppa break.

Offline

**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 92,928

Hi;

**In mathematics, you don't understand things. You just get used to them.**

Offline

**phrontister****Real Member**- From: The Land of Tomorrow
- Registered: 2009-07-12
- Posts: 3,979

Hi,

Offline

**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 92,928

**In mathematics, you don't understand things. You just get used to them.**

Offline

**phrontister****Real Member**- From: The Land of Tomorrow
- Registered: 2009-07-12
- Posts: 3,979

Offline

**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 92,928

Hi;

**In mathematics, you don't understand things. You just get used to them.**

Offline

**phrontister****Real Member**- From: The Land of Tomorrow
- Registered: 2009-07-12
- Posts: 3,979

Hi Bobby,

Offline

**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 92,928

Hi;

**In mathematics, you don't understand things. You just get used to them.**

Offline

**phrontister****Real Member**- From: The Land of Tomorrow
- Registered: 2009-07-12
- Posts: 3,979

Oooo...nice! Tried it. I didn't know you could do that.

Offline

**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 92,928

Which part?

**In mathematics, you don't understand things. You just get used to them.**

Offline

**phrontister****Real Member**- From: The Land of Tomorrow
- Registered: 2009-07-12
- Posts: 3,979

RootApproximant with FullSimplify, to convert the G result to that nice, brief, accurate answer.

I had tried that with Rationalize in M with G's CAS results but of course only got a fraction.

*Last edited by phrontister (2014-03-16 02:32:15)*

Offline

**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 92,928

You could have even done this "closed form 4.73606797749979" at Alpha!

**In mathematics, you don't understand things. You just get used to them.**

Offline

**phrontister****Real Member**- From: The Land of Tomorrow
- Registered: 2009-07-12
- Posts: 3,979

Sorry...I'm not familiar with the term 'closed form'. I'll try to remember that.

Offline

**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 92,928

It means expressing something in elementary forms. Shorthand for a few simple, common operations like sqrt, +, -, / , *, a power or a trig term.

**In mathematics, you don't understand things. You just get used to them.**

Offline

**phrontister****Real Member**- From: The Land of Tomorrow
- Registered: 2009-07-12
- Posts: 3,979

Thanks, I think I understand.

I thought that my M would be able to do all of what Alpha could, but obviously not, seeing that A made that interpretation...which I can't get my M to do.

Offline

**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 92,928

The language they have written for Wolfram is a trade secret. I have emailed them to put it into the future M's but Stephen can be a bit stubborn.

**In mathematics, you don't understand things. You just get used to them.**

Offline