All Big Issues
The Instigator
Pro (for)
Winning
35 Points
The Contender
Con (against)
Losing
26 Points

# .9999 repeating = 1

Do you like this debate?NoYes+0

Post Voting Period
The voting period for this debate has ended.
after 11 votes the winner is...
Singularity
 Voting Style: Open Point System: 7 Point Started: 9/19/2008 Category: Education Updated: 8 years ago Status: Post Voting Period Viewed: 22,679 times Debate No: 5466
Debate Rounds (5)

20 comments have been posted on this debate. Showing 1 through 10 records.
Posted by ibstudent220 7 years ago
Here's another proof that Singularity missed using.

1=.9999....
1=.9+.09+.009+...
1=.9(1+.1+.01+.001+...)
1=(9/10)(10^0+10^-1+10^-2+...)
Note that this is a geometric series, which can be expressed as
1=9/10 [&#8721;(1/10)^i ]

The sum of a geometric series is given as
k[&#8721;(r^i) ]=k/(1-r), for any 0<r<1

Therefore
1=(9/10)/(1-(1/10))
1=(9/10)/(9/10)
1=1
Posted by knick-knack 8 years ago
I read the debate and PRO won...
Posted by Mangani 8 years ago
I voted PRO because the facts are on his side, but voted "con" under "most convincing arguments" because he made PRO discredit his own math by making a simple argument complex. The mathematical undisputable fact is that .999... represents .9 with an infinite number of nines behind it- infinity is not a number rather an expression meaning "without end". In that case, .999... equals 1 based on cons own math (disregarding his flawed example using infinity as a finite number). If you are still debating this, if you have any doubt in your mind about this, and if you voted con, you will fail math.
Posted by astrosfan 8 years ago
dude wtf what part of listen to the arguments actually said don't you get. you should at least read the debate before you vote. i mean i could understand vetoing against me if you have a reason from the debate, but just vote without even reading the debate is just dumb
Posted by knick-knack 8 years ago
Another one of these?
This has been done soooooooo many times...
PRO wins cause it's a fact.
Posted by Singularity 8 years ago
Hahaha, it's cool.
I assume astrosfan wouldn't mind if you waited to post problems with our arguments after our last round though. ;)
Posted by Lightkeeper 9 years ago
Oh me and my big mouth.
I'll shuddup.
Sorry :(
Posted by Singularity 9 years ago
Yeah, you saw it before I did, and now I feel hesitant to include it. :P
Posted by Lightkeeper 9 years ago
"The law of functions- the problem with my opponent's attack on this is that both 1 and .9999… are in decimal form no if one was in fraction from while the other was in decimal I would agree that they could be in the same location but because the from they in it would prevent them from being in the same location."

Sorry to butt in in the middle of the debate but I'm struggling to see how Con has assumed that "1" is in a decimal form as opposed to fraction form (1/1).....
Posted by Singularity 9 years ago
Quote:
"who would tell you it isn't?! .999 repeating is one exactly. you can't get any closer to one without being one exactly or going over."
______
Whoever takes the position of Con...

Quote:
"you see, people who do these kinds of debates can only be doing it for the pure fact that they want to raise their win percentages."
______
A created a new history-free account so that my previous win/lose recored would not be impacted nor provide insight to my debate history.

Quote:
"Please cancel this debate. There is just no way CON can win. It's not even a debate!"
______
Then you should vote based on the integrity of the argument and its logical structure. A person with an inability to argue can be right but still not win and vice versa. The person who took the position of con obviously thought he could win. Can you give me another reason?
11 votes have been placed for this debate. Showing 1 through 10 records.