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

You are not logged in.

#76 2013-04-04 04:16:33

Agnishom
Real Member
From: The Complex Plane
Registered: 2011-01-29
Posts: 15,072
Website

Re: Non Intersecting chords

Ramanujan? sad


'And fun? If maths is fun, then getting a tooth extraction is fun. A viral infection is fun. Rabies shots are fun.'
'God exists because Mathematics is consistent, and the devil exists because we cannot prove it'
'Humanity is still kept intact. It remains within.' -Alokananda

Offline

#77 2013-04-04 04:19:44

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 82,723

Re: Non Intersecting chords

That is correct. Hardy and Littlewood went about proving most of the stuff Ramanujan sent them and brought with him.


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.

Offline

#78 2013-04-04 04:22:43

Agnishom
Real Member
From: The Complex Plane
Registered: 2011-01-29
Posts: 15,072
Website

Re: Non Intersecting chords

Was he experimental?


'And fun? If maths is fun, then getting a tooth extraction is fun. A viral infection is fun. Rabies shots are fun.'
'God exists because Mathematics is consistent, and the devil exists because we cannot prove it'
'Humanity is still kept intact. It remains within.' -Alokananda

Offline

#79 2013-04-04 04:27:27

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 82,723

Re: Non Intersecting chords

In many ways yes. Some of his discoveries were achieved through experimental methods. It was the same as Appel and Hankens four color proof. I mean it has the same style.


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.

Offline

#80 2013-04-04 04:31:08

Agnishom
Real Member
From: The Complex Plane
Registered: 2011-01-29
Posts: 15,072
Website

Re: Non Intersecting chords

Whats four color proof?

I've heard Ramanujan dreamt of formulas inscribed in the tongue of Lord Narasingha


'And fun? If maths is fun, then getting a tooth extraction is fun. A viral infection is fun. Rabies shots are fun.'
'God exists because Mathematics is consistent, and the devil exists because we cannot prove it'
'Humanity is still kept intact. It remains within.' -Alokananda

Offline

#81 2013-04-04 04:44:22

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 82,723

Re: Non Intersecting chords

Hmmm, believe it or not we are back to magnetic levitation and what we are discussing in the other thread.

The four Color theorem I believe was posed by Arthur Cayley and concerns the number of colors necessary to color a planar map with no to countries or region sharing the same color.


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.

Offline

#82 2013-04-04 04:47:41

Agnishom
Real Member
From: The Complex Plane
Registered: 2011-01-29
Posts: 15,072
Website

Re: Non Intersecting chords

bobbym wrote:

we are back to magnetic levitation

Really?


'And fun? If maths is fun, then getting a tooth extraction is fun. A viral infection is fun. Rabies shots are fun.'
'God exists because Mathematics is consistent, and the devil exists because we cannot prove it'
'Humanity is still kept intact. It remains within.' -Alokananda

Offline

#83 2013-04-04 04:50:53

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 82,723

Re: Non Intersecting chords

Yes, but we do not have to talk about such things for many years.

Hopefully, we are now done with this question.


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.

Offline

#84 2013-04-04 05:04:01

Agnishom
Real Member
From: The Complex Plane
Registered: 2011-01-29
Posts: 15,072
Website

Re: Non Intersecting chords

I am not sure I understood what you mean


'And fun? If maths is fun, then getting a tooth extraction is fun. A viral infection is fun. Rabies shots are fun.'
'God exists because Mathematics is consistent, and the devil exists because we cannot prove it'
'Humanity is still kept intact. It remains within.' -Alokananda

Offline

#85 2013-04-04 05:13:44

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 82,723

Re: Non Intersecting chords

About what in particular?


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.

Offline

#86 2013-04-04 05:17:11

Agnishom
Real Member
From: The Complex Plane
Registered: 2011-01-29
Posts: 15,072
Website

Re: Non Intersecting chords

Which question are we done with?


'And fun? If maths is fun, then getting a tooth extraction is fun. A viral infection is fun. Rabies shots are fun.'
'God exists because Mathematics is consistent, and the devil exists because we cannot prove it'
'Humanity is still kept intact. It remains within.' -Alokananda

Offline

#87 2013-04-04 05:21:32

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 82,723

Re: Non Intersecting chords

The question of the intersecting chords. Are you satisfied with it?


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.

Offline

#88 2013-04-04 05:24:00

Agnishom
Real Member
From: The Complex Plane
Registered: 2011-01-29
Posts: 15,072
Website

Re: Non Intersecting chords

Yes

But I would like to hear about levitation


'And fun? If maths is fun, then getting a tooth extraction is fun. A viral infection is fun. Rabies shots are fun.'
'God exists because Mathematics is consistent, and the devil exists because we cannot prove it'
'Humanity is still kept intact. It remains within.' -Alokananda

Offline

#89 2013-04-04 05:29:02

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 82,723

Re: Non Intersecting chords

Let's talk about what we think we know. You have heard of the Meisner effect?


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.

Offline

#90 2013-04-04 05:33:06

Agnishom
Real Member
From: The Complex Plane
Registered: 2011-01-29
Posts: 15,072
Website

Re: Non Intersecting chords

No, should I google it?


'And fun? If maths is fun, then getting a tooth extraction is fun. A viral infection is fun. Rabies shots are fun.'
'God exists because Mathematics is consistent, and the devil exists because we cannot prove it'
'Humanity is still kept intact. It remains within.' -Alokananda

Offline

#91 2013-04-04 05:35:31

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 82,723

Re: Non Intersecting chords

I can give a very loose definition or you can google it. It is surprising that you have not seen it demonstrated in physics class.


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.

Offline

#92 2013-04-04 05:38:40

Agnishom
Real Member
From: The Complex Plane
Registered: 2011-01-29
Posts: 15,072
Website

Re: Non Intersecting chords

Then, describe it, if you please


'And fun? If maths is fun, then getting a tooth extraction is fun. A viral infection is fun. Rabies shots are fun.'
'God exists because Mathematics is consistent, and the devil exists because we cannot prove it'
'Humanity is still kept intact. It remains within.' -Alokananda

Offline

#93 2013-04-04 05:50:05

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 82,723

Re: Non Intersecting chords

When substances get very cold the resistance decreases. As you approach absolute zero the resistance drops off to nothing. Current begins to flow in the substance by itself. This is called superconductivity. Follow?


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.

Offline

#94 2013-04-04 14:34:31

Agnishom
Real Member
From: The Complex Plane
Registered: 2011-01-29
Posts: 15,072
Website

Re: Non Intersecting chords

Yes, but such things are not real


'And fun? If maths is fun, then getting a tooth extraction is fun. A viral infection is fun. Rabies shots are fun.'
'God exists because Mathematics is consistent, and the devil exists because we cannot prove it'
'Humanity is still kept intact. It remains within.' -Alokananda

Offline

#95 2013-04-04 19:28:43

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 82,723

Re: Non Intersecting chords

Not true, a while back a new type of type of material was discovered or delivered that would superconduct at much higher temperatures. The race with not much success for a room temperature superconductor has been on ever since.


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.

Offline

#96 2013-04-04 19:48:44

gAr
Member
Registered: 2011-01-09
Posts: 3,462

Re: Non Intersecting chords

Hi,

Here's a discussion about the same problem : http://www.ocf.berkeley.edu/~wwu/cgi-bi … 1103172669


"Believe nothing, no matter where you read it, or who said it, no matter if I have said it, unless it agrees with your own reason and your own common sense"  - Buddha?

"Data! Data! Data!" he cried impatiently. "I can't make bricks without clay."

Offline

#97 2013-04-04 19:53:56

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 82,723

Re: Non Intersecting chords

Hi gAr;

Yes, I know about that one. There is also some at the OEIS.


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.

Offline

Board footer

Powered by FluxBB