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Which one?

Maths 19 26.76%
 
Math 20 28.17%
 
Mathematics 32 45.07%
 
Total:71
Faelco on 02 April 2016
fatslob-:O said:
JRPGfan said:

Did you read pokoko post?

I don't care about pokoko's post in this instance, what I care about is mathematics ...

It's your loss for not accepting the facts or the proofs ...

Well, pokoko's post is right, but is about alternative mathematics, not the mathematics we're talking about.

But it won't help JRPGfan to admit this fact :(



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JRPGfan on 02 April 2016
fatslob-:O said:
JRPGfan said:

Did you read pokoko post?

I don't care about pokoko's post in this instance, what I care about is mathematics ...

It's your loss for not accepting the facts or the proofs ...

I accept them. For practial reasons (no such thing as infinity in the real world), mainly because it doesnt ever make a differnce (afaik).

This intire thead is a non issue imo.

 

I still think its bad math.



Peh on 02 April 2016
Teeqoz said:
Peh said:

You already did. You defined 0.9999... as x. 0.999 could be also called milk if you want and milk equals 1

Nearly every single mathematical proof there is starts with stating something equivalent to "if x = 0.999... then:". If that is a valid reason to say my proof is invalid, then oh boy, we have to throw a lot of mathematics out the window! Also, the user I quoted was asking about the fraction proof, where I didn't use x at all.

Well then, what definition has 0.9999... ? What kind of number is that and what rules does it have?



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Faelco on 02 April 2016
JRPGfan said:
fatslob-:O said:

I don't care about pokoko's post in this instance, what I care about is mathematics ...

It's your loss for not accepting the facts or the proofs ...

I accept them. For practial reasons (no such thing as infinity in the real world), mainly because it doesnt ever make a differnce (afaik).

This intire thead is a non issue imo.

I was surprised to see a thread about that, and even more to see several pages of debates about a known proven fact.

It really is a non issue because the OP is a statement, not an opinion.



Teeqoz on 02 April 2016
JRPGfan said:
fatslob-:O said:

You can't once you have an actual proof, at least not in your case so I guess some people will have to deal with such epiphany ...

Havnt proofs been proved wrong before? some where they where held as true for many many years?

Okay, so I think I figured out another way to explain it and make it a bit more understandable.

So, we start with 0.999... right? Then we add 0.111...

So we have this :

  0.999...

+0.111...

And that is equal to 1.111... (think of it as an infinitely repeating process, where you first add 0.9 and 0.1, then 0.09 and 0.01, 0.009+0.001, 0.0009+0.0001 etc.)

Then we subtract the samething we added, 0.111....

now, obviously, 1.111.... - 0.111... = 1 and since 0.999...+0.111=1.111... then 0.999... = 1

 

Can't be bothered to formulate this into a normally formulated proof, this is more as an additional explanation to make it easier to understand.



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Teeqoz on 02 April 2016
Peh said:
Teeqoz said:

Nearly every single mathematical proof there is starts with stating something equivalent to "if x = 0.999... then:". If that is a valid reason to say my proof is invalid, then oh boy, we have to throw a lot of mathematics out the window! Also, the user I quoted was asking about the fraction proof, where I didn't use x at all.

Well then, what definition has 0.9999... ? What kind of number is that and what rules does it have?

Because 0.999...=1, 0.999.... has the same properties and rules as 1.

2*0.999...=2, just like 2*1=2.



JRPGfan on 02 April 2016
Faelco said:
JRPGfan said:

I accept them. For practial reasons (no such thing as infinity in the real world), mainly because it doesnt ever make a differnce (afaik).

This intire thead is a non issue imo.

I was surprised to see a thread about that, and even more to see several pages of debates about a known proven fact.

It really is a non issue because the OP is a statement, not an opinion.

Even if it wasnt accepted math, which it is.

Theres never a time where it will make a differnce.

Its a total non issue for that reason alone.



Faelco on 02 April 2016
Teeqoz said:
JRPGfan said:

Havnt proofs been proved wrong before? some where they where held as true for many many years?

Okay, so I think I figured out another way to explain it and make it a bit more understandable.

So, we start with 0.999... right? Then we add 0.111...

So we have this :

  0.999...

+0.111...

And that is equal to 1.111... (think of it as an infinitely repeating process, where you first add 0.9 and 0.1, then 0.09 and 0.01, 0.009+0.001, 0.0009+0.0001 etc.)

Then we subtract the samething we added, 0.111....

now, obviously, 1.111.... - 0.111... = 1 and since 0.999...+0.111=1.111... then 0.999... = 1

 

Can't be bothered to formulate this into a normally formulated proof, this is more as an additional explanation to make it easier to understand.

Honestly, I still think the 1/3 method is the best and simplest way to prove it, don't bother searching for lots of different explanations, it's all on the Wiki page anyway ^^.



fatslob-:O on 02 April 2016
JRPGfan said:

I accept them. For practial reasons (no such thing as infinity in the real world), mainly because it doesnt ever make a differnce (afaik).

This intire thead is a non issue imo.

 

I still think its bad math.

If it's bad math then maybe we should stop teaching our engineers or physical scientists this stuff ...  



Teeqoz on 02 April 2016
Faelco said:
JRPGfan said:

I accept them. For practial reasons (no such thing as infinity in the real world), mainly because it doesnt ever make a differnce (afaik).

This intire thead is a non issue imo.

I was surprised to see a thread about that, and even more to see several pages of debates about a known proven fact.

It really is a non issue because the OP is a statement, not an opinion.
JRPGfan said:
Faelco said:

I was surprised to see a thread about that, and even more to see several pages of debates about a known proven fact.

It really is a non issue because the OP is a statement, not an opinion.

Even if it wasnt accepted math, which it is.

Theres never a time where it will make a differnce.

Its a total non issue for that reason alone.

Nearly everything on this forum is talking about non-issues. What's wrong with talking about some mathematical non-issues?