Does .9-repeating equal 1?

[snoopy369]

Originally posted by Jaguar
They equal each other, mathematically. But they are different concepts. The sum of a series can be .999..., but you'd never say that there are .999... people in a room.

I agree with this Math types will say "It's true, because 1-0.9999... = 0" which is correct for their way of thinking. For liberal arts types, the name of the item is as important as the contents of it; and 1 and 0.999... are named in a much different manners, and to them that's important.

To me I don't care ... I have no use for 0.999... thus it matters not to me what it is or isn't

[SlowwHand]

Mathematicians have no soul. They're kind of like used car salesmen.

[DRoseDARs]

Only nerdier.

[Odin]

Originally posted by Impaler[WrG]


NO, numbers in a platonic sense dont have any physical existence but they and mathamatical principles definatly are real parts of our world and our literaly in the fabric of reality.

That makes no sense, the only thing in the universe that is real is matter and energy.

[Kuciwalker]

Originally posted by rah
So the final point is, yes, they're the same, but in THE REAL WORLD, you have to verify that the tools that you're using also believe this truth.

Computers can't be wrong

In the REAL WORLD you never encounter .999... unless you're using some sort of symbolic math program.

[rah]

Originally posted by Pekka
rah, yes but that doesnt' really apply, we could always argue that Java uses round ups totally against the 'reality', so we can't really use that as an argument to what is mathematically correct.

If you look back, I preceded my example agreeing with the mathematical correctness of it. I was just pointing out some situations were correctness may cause problems. As always, you just can't simply assume that because it's correct that it will work.

While in reality you don't deal with .999...... much, you do deal with .333...... quite often.

[Pekka]

Right, right.. but I just thought using programming languages as an example is not very good because it's so rare for people in their lives.

[rah]

Programmers are the center of the universe. Without them computers would be worthless and there would be no Apolyton or CIV. Blasphamy I say.

What could be more real in most of our lives?
Blasphamy.

[Impaler[WrG]]

That makes no sense, the only thing in the universe that is real is matter and energy.

I see your a materialist, so am I

Let me rephrase it, matter and energy exist in descrete patterns that can be expressed with math. That math is real in the sense that it acuratly reflects the actualy or possible configurations and laws of our universe. Not all math describes a material part of our universe nor has every law or part of our universe been corralated with mathematics (yet). Math as we use it is a mental abstraction but its not JUST a mental abstraction, it's an abstraction based on empirical observation that have legitimatly discovered some of the most basic laws of logic. Using the simpler laws we have correctly deduced more complex ones and from them made successfull predictions of the material universe.

[Kuciwalker]

Originally posted by rah
Programmers are the center of the universe.

[Dis]

considering I just read this article on wikipedia the other day, I have to go with yes. Though it just doesn't feel right, but it is yes.

[Ãskallin]

My maths teacher told me that 0,9~ is equal to 1...
And he happens to have worked for NASA doing some pretty complicated stuff that I don´t know what is, so I belive him

Anyway its close enough to 1

[loinburger]

Originally posted by Ãskallin
And he happens to have worked for NASA doing some pretty complicated stuff that I don´t know what is, so I belive him

Did you happen to ask him if centimeters were equal to inches?

[SlowwHand]

I don't see how, but this thread gets worse and worse.

[Ãskallin]

No I certainly did not ask any such thing...