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#1051 2012-12-24 07:21:34

anonimnystefy
Real Member
From: The Foundation
Registered: 2011-05-23
Posts: 15,522

Re: Bafflers?

Ah, okay!


“Here lies the reader who will never open this book. He is forever dead.

“Taking a new step, uttering a new word, is what people fear most.” ― Fyodor Dostoyevsky, Crime and Punishment

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#1052 2012-12-24 07:28:41

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 86,309

Re: Bafflers?

Yes, I did it in a different way.


In mathematics, you don't understand things. You just get used to them.
Of course that result can be rigorously obtained, but who cares?
Combinatorics is Algebra and Algebra is Combinatorics.

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#1053 2012-12-24 07:31:05

anonimnystefy
Real Member
From: The Foundation
Registered: 2011-05-23
Posts: 15,522

Re: Bafflers?

Well, is it the same as mine, or not?

And, I think I have found a formula for the numbers in the other thread...


“Here lies the reader who will never open this book. He is forever dead.

“Taking a new step, uttering a new word, is what people fear most.” ― Fyodor Dostoyevsky, Crime and Punishment

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#1054 2012-12-24 07:38:12

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 86,309

Re: Bafflers?

My solution consists of using geogebra with an increment of .0000000000000000000000000000000000000000001 at this small increment quantum math takes over and even though that is over 10^43 points it is done instantaneously. Then I put the 10^43 values into the spreadsheet and curve fit. Because in quantum math 10^43  equals infinity the fit was exact. Got the same answer you did.


In mathematics, you don't understand things. You just get used to them.
Of course that result can be rigorously obtained, but who cares?
Combinatorics is Algebra and Algebra is Combinatorics.

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#1055 2012-12-24 07:40:27

anonimnystefy
Real Member
From: The Foundation
Registered: 2011-05-23
Posts: 15,522

Re: Bafflers?

I think my way is simpler...


“Here lies the reader who will never open this book. He is forever dead.

“Taking a new step, uttering a new word, is what people fear most.” ― Fyodor Dostoyevsky, Crime and Punishment

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#1056 2012-12-24 07:43:48

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 86,309

Re: Bafflers?

You should have seen geogebra animating through the 10^43 points in no time at all. The GUI changed colors and its shape changed as it warped into the 5 and 6th dimensions. To see the spreadsheet holding 10^43 numbers was truly awe inspiring. In quantum math geogebra is a brute.


In mathematics, you don't understand things. You just get used to them.
Of course that result can be rigorously obtained, but who cares?
Combinatorics is Algebra and Algebra is Combinatorics.

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#1057 2012-12-24 07:48:29

anonimnystefy
Real Member
From: The Foundation
Registered: 2011-05-23
Posts: 15,522

Re: Bafflers?

It must have been amazing. Shame I wasn't there to see...


“Here lies the reader who will never open this book. He is forever dead.

“Taking a new step, uttering a new word, is what people fear most.” ― Fyodor Dostoyevsky, Crime and Punishment

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#1058 2012-12-24 07:55:28

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 86,309

Re: Bafflers?

Smoke came out of the tower and the monitor began to phase out of this universe. Quantum mathematics! It is faaaaaantaaaastic.


In mathematics, you don't understand things. You just get used to them.
Of course that result can be rigorously obtained, but who cares?
Combinatorics is Algebra and Algebra is Combinatorics.

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#1059 2012-12-24 09:54:47

anonimnystefy
Real Member
From: The Foundation
Registered: 2011-05-23
Posts: 15,522

Re: Bafflers?

Math+Physics=Wonder! (that's wonder factorial).

Last edited by anonimnystefy (2012-12-24 09:55:35)


“Here lies the reader who will never open this book. He is forever dead.

“Taking a new step, uttering a new word, is what people fear most.” ― Fyodor Dostoyevsky, Crime and Punishment

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#1060 2012-12-24 21:14:43

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 86,309

Re: Bafflers?

Actually, none of that is true. I had the answer from the book. I just had to look at it.


In mathematics, you don't understand things. You just get used to them.
Of course that result can be rigorously obtained, but who cares?
Combinatorics is Algebra and Algebra is Combinatorics.

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#1061 2012-12-24 21:21:30

anonimnystefy
Real Member
From: The Foundation
Registered: 2011-05-23
Posts: 15,522

Re: Bafflers?

Really? None of that is true? Well, you sure had me fooled there!


“Here lies the reader who will never open this book. He is forever dead.

“Taking a new step, uttering a new word, is what people fear most.” ― Fyodor Dostoyevsky, Crime and Punishment

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#1062 2012-12-24 21:23:35

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 86,309

Re: Bafflers?

I am sorry then. Now you know the truth.


In mathematics, you don't understand things. You just get used to them.
Of course that result can be rigorously obtained, but who cares?
Combinatorics is Algebra and Algebra is Combinatorics.

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#1063 2012-12-24 21:27:51

anonimnystefy
Real Member
From: The Foundation
Registered: 2011-05-23
Posts: 15,522

Re: Bafflers?

Yes, thank you for being honest.


“Here lies the reader who will never open this book. He is forever dead.

“Taking a new step, uttering a new word, is what people fear most.” ― Fyodor Dostoyevsky, Crime and Punishment

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#1064 2012-12-24 21:31:31

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 86,309

Re: Bafflers?

Honest is the best policy. Like my dear ole pappym used to say.


In mathematics, you don't understand things. You just get used to them.
Of course that result can be rigorously obtained, but who cares?
Combinatorics is Algebra and Algebra is Combinatorics.

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#1065 2013-01-10 13:45:53

anonimnystefy
Real Member
From: The Foundation
Registered: 2011-05-23
Posts: 15,522

Re: Bafflers?

I need new problems! The ones already posed are too tough!


“Here lies the reader who will never open this book. He is forever dead.

“Taking a new step, uttering a new word, is what people fear most.” ― Fyodor Dostoyevsky, Crime and Punishment

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#1066 2013-01-10 13:47:26

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 86,309

Re: Bafflers?

Okay, I will see if I can post one. The other's are not too difficult, you are capable of solving them.

New problem:

A plane moves on the xy plane according to the equation x + x*y + y = 5;

If -13.8 < 2 x + 2 y  < 5.8 then the plane will be okay.

A says) That plane is a goner. It will never make the flight.

B says) It is close but the plane will make it.

C say) Computer calculations say A is right. I am not getting on that plane.

D says) What are calculations. I like trains better anyway. If man were meant to fly he would have been born like an ostrich.

E says) I have to agree with B on this one. The plane will remain within safe limits for the entire time. By the way D, ostriches can not fly.

Is the plane okay or is it not. Who is right?


In mathematics, you don't understand things. You just get used to them.
Of course that result can be rigorously obtained, but who cares?
Combinatorics is Algebra and Algebra is Combinatorics.

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#1067 2013-01-10 14:32:12

anonimnystefy
Real Member
From: The Foundation
Registered: 2011-05-23
Posts: 15,522

Re: Bafflers?

I have to agree with A on this one. Looking at the graph of points whose coordinates satisfy the given equation, I see that the sum of the two coordinates has a minimun of -infjnity and a maximum of +infinity...


“Here lies the reader who will never open this book. He is forever dead.

“Taking a new step, uttering a new word, is what people fear most.” ― Fyodor Dostoyevsky, Crime and Punishment

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#1068 2013-01-10 14:49:20

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 86,309

Re: Bafflers?

Hi;


Supposing the path of the flight was 15x² + 16x y + 10y² = 10

and the safety range was

-2.045983018410 < 2x + 2y < 2.045983018410

what is your prediction then?


In mathematics, you don't understand things. You just get used to them.
Of course that result can be rigorously obtained, but who cares?
Combinatorics is Algebra and Algebra is Combinatorics.

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#1069 2013-01-12 11:55:32

scientia
Member
Registered: 2009-11-13
Posts: 222

Re: Bafflers?

Last edited by scientia (2013-01-13 23:41:08)

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#1070 2013-01-12 15:39:05

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 86,309

Re: Bafflers?

Hi scientia;


In mathematics, you don't understand things. You just get used to them.
Of course that result can be rigorously obtained, but who cares?
Combinatorics is Algebra and Algebra is Combinatorics.

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#1071 2013-01-12 22:11:08

scientia
Member
Registered: 2009-11-13
Posts: 222

Re: Bafflers?

Thanks bobbym. I've hidden my solution.

Last edited by scientia (2013-01-12 22:11:33)

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#1072 2013-01-29 10:18:32

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 86,309

Re: Bafflers?

New problem:

A right triangle is to be constructed on the top side of a square with sides a making a the hypotenuse. See the diagram. You must find point E. Now BE and EC are in ratio of 3 to 4 and BE and BC are in ratio of 3 to 5. EC and BC are in ratio 4 to 5.

A says) Impossible to determine.

B says) Kaboobly doo, it is easy. You start by...

C says) A is right again. I could not do it so I guess it is impossible.

D says) Right triangle?

E says) I got it too.

Find E and remember it must be for any square and any orientation.

View Image: 2013-01-29_141101.gif

In mathematics, you don't understand things. You just get used to them.
Of course that result can be rigorously obtained, but who cares?
Combinatorics is Algebra and Algebra is Combinatorics.

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#1073 2013-01-29 10:37:19

anonimnystefy
Real Member
From: The Foundation
Registered: 2011-05-23
Posts: 15,522

Re: Bafflers?

Ummm, is the point E given or ...? The text of the problem is very unclear...

And what orientation have to do with anything?


“Here lies the reader who will never open this book. He is forever dead.

“Taking a new step, uttering a new word, is what people fear most.” ― Fyodor Dostoyevsky, Crime and Punishment

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#1074 2013-01-29 10:38:38

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 86,309

Re: Bafflers?

Hi;

Point E is to be found. When you find it a right triangle will be created with the sides in the given proportions.


In mathematics, you don't understand things. You just get used to them.
Of course that result can be rigorously obtained, but who cares?
Combinatorics is Algebra and Algebra is Combinatorics.

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#1075 2013-01-29 10:41:27

anonimnystefy
Real Member
From: The Foundation
Registered: 2011-05-23
Posts: 15,522

Re: Bafflers?

What does orientation have to do with anything and since when do you do constructive geometry?


“Here lies the reader who will never open this book. He is forever dead.

“Taking a new step, uttering a new word, is what people fear most.” ― Fyodor Dostoyevsky, Crime and Punishment

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