/sci/ - Interesting bit of math I learned

Name: McPeePants 2007-10-01 23:23 ID:qwInlHTY

.6666 equals 1.

Name: McPeePants 2007-10-01 23:27 ID:qwInlHTY

Oops, it's actually .9999, sorry but I was typing fast and not paying attention.

Name: Anonymous 2007-10-02 10:34 ID:Ppb/N53n

you are correct as long as there are infinite nines...

Name: Anonymous 2007-10-02 10:43 ID:xQDuso6K

Not again!!!!
we already discussed this a thousand times!!
0.99999999......= 1

Name: Anonymous 2007-10-02 11:34 ID:Heaven

>>4
So you're the guy that keeps falling for those trolls.

Name: Anonymous 2007-10-02 14:18 ID:Heaven

>>4
in your dreams

Name: Anonymous 2007-10-05 10:23

get your white people math out of here

Name: Anonymous 2007-10-05 11:01

0.999999999..... != 1, faggot.

Name: Anonymous 2007-10-05 11:22

No, 1=1.

Name: Anonymous 2007-10-05 11:41

>>9
And so does 0.9999999...........

Name: Anonymous 2007-10-05 12:21

Prove it.

Name: Anonymous 2007-10-05 13:24

>>11
1/3 = 0.333333333333...
0.33333333333...* 3 = 0.99999999999999......
Hence, 0.99999999999........=1
I win.

Name: Anonymous 2007-10-05 14:18

>>12
That's not a proof, that is a tautology

Name: Anonymous 2007-10-05 14:54

>>13
That's not a tautology, that's proof.

Name: Anonymous 2007-10-05 15:36

>>1

You are correct in base 7.

Name: Anonymous 2007-10-05 16:56

0.99999... = lim_{n->\infty} \sum_{m=1}^n 9*10^{-m}
= lim_{n->\infty} (1 - 10^{-n})
= 1 - lim_{n->\infty} 10^{-n}
= 1 - 0
= 1

If we don't answer with proof, then the trolls win.

Name: Anonymous 2007-10-05 20:42

>>16 here j/k guyz i like to lick my b/f shit covered anus

Name: mr. universe 2007-11-02 16:04

yes and no, 1/3 + 1/3 + 1/3 =1 however .333... + .333... + .333... = .999... not one. using fractions removes this inconstancy

Name: anon 2007-11-02 16:52

AIRTIGHT PROOF RIGHT HERE!!!

Let x = 0.999... (given)
10x = 9.999... (multiply both sides by ten)
9x-x = 9.999...-x (subtract x from both sides)
9x-x = 9.999...-0.999... (substitute 0.999... for x on right)
9x = 9 (combine like terms)
x = 9/9 (divide both sides by 9)
x = 1 (simplify the fraction)
0.999... = 1 (substitute 0.999... for x on left)

Name: Anonymous 2007-11-02 20:49

Fuck you all.

Name: Anonymous 2007-11-04 16:29

>>20
Fuck you.

Name: Anonymous 2007-11-04 16:32

If you believe .999...!=1, kill yourself now please.

Name: RedCream 2007-11-04 16:44

Why is it that we're willing to believe that THIS is true:

0.555... = 5/9

... but NOT that this is equally true?:

0.999... = 1/1

The answer is innumeracy. Too many people are not sufficiently educated in mathematics.

Name: Anonymous 2007-11-04 17:13

>>23
John Allen Paulos is God.

Name: mis4tune 2007-11-04 19:29

well, maybe in zimbabwe dude, but not in the normal civilization ;)

Name: Anonymous 2007-11-05 0:11

>>22
you fucking racist

>>23
The answer is look at the fucking thing, and people quite reasonably don't give a shit.

Name: anon 2007-11-05 1:46

>>22
^What he said.

>>23
Maybe it would be better to say:

0.555..=5/9

0.999...=9/9 as opposed to 0.999=1/1

Name: Anonymous 2007-11-05 3:22

why come do I divide 9/9, it never show 0.999...
Because it ass lick way to show answer.

Name: Anonymous 2007-11-05 8:55

0.666... does indeed equal 1.
_{_{_{_{_{_{In base 7}}}}}}

Name: Anonymous 2007-11-07 14:59

0.9... = 1 - 0.0...1

Name: Anonymous 2007-11-07 15:59

>>30
You're correct in that you're wrong in a good way. Being that .0...1 doesn't really mean anything but zero, you pretty much wrote that 1=1-0. However, your implication of infinitesimals is, of course, stupid and a failed troll.

This whole topic fails at life.

Name: Anonymous 2007-11-07 20:26

>>31
Actually, he's wrong in a wrong way. 0.0...1 is meaningless in ways that 0.9... isn't. There's can't be a last digit (1 or anything else) if there is an infinite number of digits preceding it.

Name: McPP 2007-11-07 20:58

I am sorry I opened this can of worms.

Name: Anonymous 2007-11-07 22:11

>>33
Bullshit. You were trolling and got the attention you were after. Now GTFO and never return.

Interesting bit of math I learned

1 Name: McPeePants 2007-10-01 23:23 ID:qwInlHTY

2 Name: McPeePants 2007-10-01 23:27 ID:qwInlHTY

3 Name: Anonymous 2007-10-02 10:34 ID:Ppb/N53n

4 Name: Anonymous 2007-10-02 10:43 ID:xQDuso6K

5 Name: Anonymous 2007-10-02 11:34 ID:Heaven

6 Name: Anonymous 2007-10-02 14:18 ID:Heaven

7 Name: Anonymous 2007-10-05 10:23

8 Name: Anonymous 2007-10-05 11:01

9 Name: Anonymous 2007-10-05 11:22

10 Name: Anonymous 2007-10-05 11:41

11 Name: Anonymous 2007-10-05 12:21

12 Name: Anonymous 2007-10-05 13:24

13 Name: Anonymous 2007-10-05 14:18

14 Name: Anonymous 2007-10-05 14:54

15 Name: Anonymous 2007-10-05 15:36

16 Name: Anonymous 2007-10-05 16:56

17 Name: Anonymous 2007-10-05 20:42

18 Name: mr. universe 2007-11-02 16:04

19 Name: anon 2007-11-02 16:52

20 Name: Anonymous 2007-11-02 20:49

21 Name: Anonymous 2007-11-04 16:29

22 Name: Anonymous 2007-11-04 16:32

23 Name: RedCream 2007-11-04 16:44

24 Name: Anonymous 2007-11-04 17:13

25 Name: mis4tune 2007-11-04 19:29

26 Name: Anonymous 2007-11-05 0:11

27 Name: anon 2007-11-05 1:46

28 Name: Anonymous 2007-11-05 3:22

29 Name: Anonymous 2007-11-05 8:55

30 Name: Anonymous 2007-11-07 14:59

31 Name: Anonymous 2007-11-07 15:59

32 Name: Anonymous 2007-11-07 20:26

33 Name: McPP 2007-11-07 20:58

34 Name: Anonymous 2007-11-07 22:11