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Scott Cram
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Quote:
On 2011-10-05 15:15, acesover wrote:
If two objects are 12 inches apart. How long will it take for them to touch each other if every second the distance betweem them is halved?


According to Zeno, never. An argument like that has its limits, however.
Magnus Eisengrim
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Quote:
On 2011-10-05 16:59, Scott Cram wrote:
Quote:
On 2011-10-05 15:05, Magnus Eisengrim wrote:
Quote:
On 2011-10-05 14:49, kcg5 wrote:
Quote:
On 2011-10-05 14:29, Scott Cram wrote:
Quote:
On 2011-10-05 13:45, kcg5 wrote:
Is .9999999.... equal to 1?


Best answer I've come across to that question:
A Friendly Chat About Whether 0.999... = 1



wooooooooow


Care to expand on that a bit? (I'm being serious.) Did you find the article helpful? confusing? provocative? all of the above?

John


I found it both helpful and thought-provoking.


:) I was asking Kevin, math-boy.
The blood-dimmed tide is loosed, and everywhere
The ceremony of innocence is drowned;
The best lack all conviction, while the worst
Are full of passionate intensity.--Yeats
kcg5
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John, I found that article as D, all of the above. I am not that good at math, which should be obvious, but I love the concepts of it, the basic idea behind it-if that makes sense. The phrase "The meaning of 0.999… depends on our assumptions about how numbers behave." really meant a lot while reading his explanation.


And John, as you can see from my facebook, not everyone knows the answer-one of those who thinks not was a middle school principle in my city for 30+ years.... And, of course, a 16 year old got it right, first post...
Nobody expects the spanish inquisition!!!!!



"History will be kind to me, as I intend to write it"- Sir Winston Churchill
ClintonMagus
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Q: Why does a nerd put ice cubes up his nose?
A: He's keeping his lunch cold.

Q: Why do programmers always mix up Halloween and Christmas?
A: Because Oct 31 = Dec 25!
Things are more like they are today than they've ever been before...
kcg5
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I don't get any of these jokes, none at all.
Nobody expects the spanish inquisition!!!!!



"History will be kind to me, as I intend to write it"- Sir Winston Churchill
Jonathan Townsend
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Quote:
On 2011-10-05 15:15, acesover wrote:
If two objects are 12 inches apart. How long will it take for them to touch each other if every second the distance betweem them is halved?


Kinda tough to decide after the distance gets down to something on the order of ten to the minus thirty of an inch. So forty seconds later you get ... ?
...to all the coins I've dropped here
Jonathan Townsend
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Quote:
On 2011-10-05 13:45, kcg5 wrote:
Is .9999999.... equal to 1?


Depends on what you'd call the difference.

Is there no difference? An insignificant difference?

Or in plain English, could you tell one from the other?
...to all the coins I've dropped here
Magnus Eisengrim
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Quote:
On 2011-10-05 20:59, kcg5 wrote:
John, I found that article as D, all of the above. I am not that good at math, which should be obvious, but I love the concepts of it, the basic idea behind it-if that makes sense. The phrase "The meaning of 0.999… depends on our assumptions about how numbers behave." really meant a lot while reading his explanation.


And John, as you can see from my facebook, not everyone knows the answer-one of those who thinks not was a middle school principle in my city for 30+ years.... And, of course, a 16 year old got it right, first post...


These are all good to know. I could tell that you were curious after the first couple of posts, but I wasn't sure what the article would mean to you. I'm pleased that found it interesting. It does make you wonder what kind of sense we can make of repeating decimals. What does it mean to add up an infinite number of things? (.9+.09+.009+.0009+...)

As a long-time math teacher, I found that this question always fascinated some students. The powerful intuition is that they CAN'T be the same. Most are convinced by the argument I gave above. Some are not. Those that are still bothered the next day have the potential to become mathematicians.

John
The blood-dimmed tide is loosed, and everywhere
The ceremony of innocence is drowned;
The best lack all conviction, while the worst
Are full of passionate intensity.--Yeats
LobowolfXXX
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In law, there is the phrase "a distinction without a difference."
"Torture doesn't work" lol
Guess they forgot to tell Bill Buckley.

"...as we reason and love, we are able to hope. And hope enables us to resist those things that would enslave us."
S2000magician
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Quote:
On 2011-10-05 13:45, kcg5 wrote:
Is .9999999.... equal to 1?

Yes.
S2000magician
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Quote:
On 2011-10-05 15:15, acesover wrote:
If two objects are 12 inches apart. How long will it take for them to touch each other if every second the distance betweem them is halved?

A really, really, really long time.

(Really.)
acesover
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Quote:
On 2011-10-05 22:42, S2000magician wrote:
Quote:
On 2011-10-05 15:15, acesover wrote:
If two objects are 12 inches apart. How long will it take for them to touch each other if every second the distance betweem them is halved?

A really, really, really long time.

(Really.)


Now that is a good answer. I like that.
If I were to agree with you. Then we would both be wrong. As of Apr 5, 2015 10:26 pm I have 880 posts. Used to have over 1,000
critter
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-Why did the chicken cross the mobius strip?

-To get to the same side.
"The fool is one who doesn't know what you have just found out."
~Will Rogers
ed rhodes
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Quote:
On 2011-10-05 21:30, ClintonMagus wrote:
Q: Why does a nerd put ice cubes up his nose?
A: He's keeping his lunch cold.

Q: Why do programmers always mix up Halloween and Christmas?
A: Because Oct 31 = Dec 25!


That last one was actually the reveal at the end of a "Black Widowers" episode Isaac Asimov wrote.
"There's no time to lose," I heard her say.
"Catch your dreams before they slip away."
"Dying all the time, lose your dreams and you could lose your mind.
Ain't life unkind?"
kcg5
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Quote:
On 2011-10-15 23:59, critter wrote:
-Why did the chicken cross the mobius strip?

-To get to the same side.


Why did the chicken cross the road? To get to the "other side"... See!!! The chicken, being smart, knew he would be killed-he wanted to make it to the "other side". Maybe he had laid his last egg, or his favorite show was cancelled.
Nobody expects the spanish inquisition!!!!!



"History will be kind to me, as I intend to write it"- Sir Winston Churchill
critter
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I told my girlfriend that joke last night and ended up having to make a model to explain why it was funny.
"The fool is one who doesn't know what you have just found out."
~Will Rogers
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