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.

#301 2007-01-26 23:07:40

George,Y
Member
Registered: 2006-03-12
Posts: 1,379

Re: 0.9999....(recurring) = 1?

What I mean is that what we focus should be on the truth, not the beauty. Because aethetic feelings are untransendable-you can have yours, and I can have mine, while maths concept, so far, are uniform around the world.

That is definately due to its  power to again and again successfully apply to the real world, its correctness, its right reflection of the reality (the facts).

So I scincerely call on you not to talk about beauty, the additional and unnecessary charactor of maths. 200! may be too long and thus ugly, but we cannot deny that is correct and in fact so that we must accept it.


X'(y-Xβ)=0

Offline

#302 2007-01-26 23:11:11

MathsIsFun
Administrator
Registered: 2005-01-21
Posts: 7,711

Re: 0.9999....(recurring) = 1?

OK, but there is the saying "beauty is in the eye of the beholder", which roughly means that each person has their own idea of beauty and so it is hard to debate, I suppose.

So, let truth reign! And let each person see beauty where they can.


"The physicists defer only to mathematicians, and the mathematicians defer only to God ..."  - Leon M. Lederman

Offline

#303 2007-01-26 23:14:20

George,Y
Member
Registered: 2006-03-12
Posts: 1,379

Re: 0.9999....(recurring) = 1?

MathsIsFun wrote:

Oh, well I was commenting on how nice the concept of repeating decimals was ... how it all "hangs together".

I think the important thing is to know that decimal numbers are just a common way of representing numbers.

For example, instead of saying 1=1.000... we could use an infinite series:

And likewise, instead of saying 1=0.999... we can write:

You discussed mainly about the advantage of and your preference on the concept of infinity.

While if one thing has its advantage, it may bear a disadvantage as well. Moreover, its counterpart may have another advantage. I have illustrated both its disadvantage(its dilema, contraversary) and the alternative theory (small error theory, in many cases, fact) in the previous posts. So perhaps one can choose which to use.

The second, preference, its upon individual's free choice, too.


X'(y-Xβ)=0

Offline

#304 2007-01-27 01:54:35

Anthony.R.Brown
Banned
Registered: 2006-11-16
Posts: 516

Re: 0.9999....(recurring) = 1?

To kylekatarn

QUOTE:

" 1 = 1.0 = 1.00 = 1.000 = ... = 1.(0) "

...and it's beautiful, isn't it? ^^"

ARB

I dont know about beautiful! It might have been Good! if only it was a Counter Proof to the Fact! that I can Take away the Decimal Point Concerning 1.0 and it will still = 1
But if I do the same with 0.333... or 0.999.. then they both end up Completely Different Numbers!!

Offline

#305 2007-01-27 10:52:13

MathsIsFun
Administrator
Registered: 2005-01-21
Posts: 7,711

Re: 0.9999....(recurring) = 1?

George,Y wrote:

... I have illustrated both its disadvantage(its dilema, contraversary) and the alternative theory (small error theory, in many cases, fact) in the previous posts. So perhaps one can choose which to use.

Yes. In fact I had a calculus professor who loved teaching in terms of infinitesimals (which are not zero, but less than any real number) just like Newton's original work. And I was also taught limits (considered more rigorous).

And I believe there are modification to infinitesimal calculus that do make it rigorous (hyperreal numbers), so an old theory lives again!

And that is a good thing about mathematics: we can entertain different theories and see their benefits and disadvantages.


"The physicists defer only to mathematicians, and the mathematicians defer only to God ..."  - Leon M. Lederman

Offline

#306 2007-01-27 11:39:26

Ricky
Moderator
Registered: 2005-12-04
Posts: 3,791

Re: 0.9999....(recurring) = 1?

That is definately due to its  power to again and again successfully apply to the real world, its correctness, its right reflection of the reality (the facts).

I have asked many times, George, and as long as you make the above statement, I will continue to ask it.  Where does infinity exist in reality?  If it doesn't, then you are of the opinion that infinity should not be included in math.  Is this correct?


"In the real world, this would be a problem.  But in mathematics, we can just define a place where this problem doesn't exist.  So we'll go ahead and do that now..."

Offline

#307 2007-01-27 23:44:10

George,Y
Member
Registered: 2006-03-12
Posts: 1,379

Re: 0.9999....(recurring) = 1?

Astrology also have marvellous assumptions and bewildering deductions. What do you think that makes maths more convincing than astrology, Ricky?


X'(y-Xβ)=0

Offline

#308 2007-01-27 23:57:39

Patrick
Real Member
Registered: 2006-02-24
Posts: 1,005

Re: 0.9999....(recurring) = 1?

George, Y - As I told you in the other 0.(9)=1 thread, mathematics is nothing but a system logically derived from some axioms. Therefore, if something is true according to the axioms, it's true in mathematics. You could of course change some axioms, but that would change mathematics totally, and you'd be left with a whole new system. You're totally welcome to create your own system, based on the real world, but then you'd need to discuss it somewhere else than this forum - or atleast make it clear what you were talking about. The bottomline is - math does not depend on the 'real world', nomatter how neatly you can use math to solve problems in it.


Support MathsIsFun.com by clicking on the banners.
What music do I listen to? Clicky click

Offline

#309 2007-01-28 00:28:06

George,Y
Member
Registered: 2006-03-12
Posts: 1,379

Re: 0.9999....(recurring) = 1?

Well I may reply to your bottomline on the other thread.


X'(y-Xβ)=0

Offline

#310 2007-01-28 07:14:27

Ricky
Moderator
Registered: 2005-12-04
Posts: 3,791

Re: 0.9999....(recurring) = 1?

Astrology also have marvellous assumptions and bewildering deductions. What do you think that makes maths more convincing than astrology, Ricky?

The entire embodiment of astrology does not have a single deduction, George.  Astrology is filled with non sequiturs, and anyone who thinks otherwise will probably not be an accepted member of any math or scientific community.


"In the real world, this would be a problem.  But in mathematics, we can just define a place where this problem doesn't exist.  So we'll go ahead and do that now..."

Offline

#311 2007-01-29 00:58:48

Anthony.R.Brown
Banned
Registered: 2006-11-16
Posts: 516

Re: 0.9999....(recurring) = 1?

So there we have it! Looks like The Cambridge Advanced Dictionary/Thesaurus has Defeated everyone on this Post!

The Equation below sums up everything in a Nice way!!

( 0.9r "Definition" ) <> 1 )

A.R.B

Offline

#312 2007-01-29 01:23:53

Patrick
Real Member
Registered: 2006-02-24
Posts: 1,005

Re: 0.9999....(recurring) = 1?

Anthony.R.Brown wrote:

So there we have it! Looks like The Cambridge Advanced Dictionary/Thesaurus has Defeated everyone on this Post!

The Equation below sums up everything in a Nice way!!

( 0.9r "Definition" ) <> 1 )

A.R.B

Why don't you try to submit some of your great ideas to a journal and have it peer reviewed?


Support MathsIsFun.com by clicking on the banners.
What music do I listen to? Clicky click

Offline

#313 2007-01-30 02:12:09

Anthony.R.Brown
Banned
Registered: 2006-11-16
Posts: 516

Re: 0.9999....(recurring) = 1?

To Patrick

Quote:"Why don't you try to submit some of your great ideas to a journal and have it peer reviewed?"

A.R.B

Dont worry they will come knocking soon!!

Offline

#314 2007-01-30 03:56:47

Patrick
Real Member
Registered: 2006-02-24
Posts: 1,005

Re: 0.9999....(recurring) = 1?

Please notify me. When I come to think about it, weren't you the one with the "all problem"-solving algoritm?


Support MathsIsFun.com by clicking on the banners.
What music do I listen to? Clicky click

Offline

#315 2007-01-30 04:10:20

luca-deltodesco
Member
Registered: 2006-05-05
Posts: 1,470

Re: 0.9999....(recurring) = 1?

yes he was i believe tongue that was also rather funny


The Beginning Of All Things To End.
The End Of All Things To Come.

Offline

#316 2007-01-30 04:13:47

Dross
Member
Registered: 2006-08-24
Posts: 325

Re: 0.9999....(recurring) = 1?

What was the "all-problem solving algorithm" you speak of?


Bad speling makes me [sic]

Offline

#317 2007-01-30 04:15:12

luca-deltodesco
Member
Registered: 2006-05-05
Posts: 1,470

Re: 0.9999....(recurring) = 1?

he believed hed found some magical algorithm, that could solve ANYTHING accross ANY field of mathematics NO MATTER WHAT, and that he'd used it to proove all the millenium math problems


The Beginning Of All Things To End.
The End Of All Things To Come.

Offline

#318 2007-01-30 04:24:27

Dross
Member
Registered: 2006-08-24
Posts: 325

Re: 0.9999....(recurring) = 1?

And of course, he wouldn't tell us this algorithm as we'd just use it for our own financial gain?


Bad speling makes me [sic]

Offline

#319 2007-01-30 04:27:42

luca-deltodesco
Member
Registered: 2006-05-05
Posts: 1,470

Re: 0.9999....(recurring) = 1?

yeh thats the one


The Beginning Of All Things To End.
The End Of All Things To Come.

Offline

#320 2007-01-30 04:28:33

Patrick
Real Member
Registered: 2006-02-24
Posts: 1,005

Re: 0.9999....(recurring) = 1?

Correct smile I wonder if he's still working on that smile


Support MathsIsFun.com by clicking on the banners.
What music do I listen to? Clicky click

Offline

#321 2007-01-30 08:01:21

Zhylliolom
Real Member
Registered: 2005-09-05
Posts: 412

Re: 0.9999....(recurring) = 1?

The member who posted about the "all problem solving algorithm" was se7en. This is the guy you're talking about, correct?

http://www.mathsisfun.com/forum/viewtopic.php?id=4028

He deleted most of what he said, but you'll probably remember the thread if we are thinking of the same guy.

Offline

#322 2007-01-30 08:57:05

luca-deltodesco
Member
Registered: 2006-05-05
Posts: 1,470

Re: 0.9999....(recurring) = 1?

ah well, it was a similar kind of scenario though tongue


The Beginning Of All Things To End.
The End Of All Things To Come.

Offline

#323 2007-01-30 08:58:53

Patrick
Real Member
Registered: 2006-02-24
Posts: 1,005

Re: 0.9999....(recurring) = 1?

ah darn tongue


Support MathsIsFun.com by clicking on the banners.
What music do I listen to? Clicky click

Offline

#324 2007-01-30 23:34:48

Anthony.R.Brown
Banned
Registered: 2006-11-16
Posts: 516

Re: 0.9999....(recurring) = 1?

( 0.9r "Definition" ) <> 1 )  "Now that,s Beautiful!"

A.R.B

Offline

#325 2007-01-31 02:01:41

Dross
Member
Registered: 2006-08-24
Posts: 325

Re: 0.9999....(recurring) = 1?

Anthony.R.Brown wrote:

I have been waiting to Post the following Post for some time Now! I can wait any Longer!!
Maybe I was hoping someone would put forward Something Amazing! But Deep down I always knew my Proof would stand the test of Time!

Erm... yes, Anthony... whatever you say...


Bad speling makes me [sic]

Offline

Board footer

Powered by FluxBB