This is a read-only archive of the old Scratch 1.x Forums.
Try searching the current Scratch discussion forums.

#51 2010-12-20 17:55:55

TheSaint
Scratcher
Registered: 2008-11-04
Posts: 1000+

Re: X=X+1: an obnoxious equation

antimonyarsenide wrote:

Kileymeister wrote:

antimonyarsenide wrote:


That gives you 0=1, so the solution for X is a null (empty) set. Simple.

But, no, it wouldn't be the "formula" for infinity, because then you can manipulate it to do all sorts of weird things.

Now, another question.

1/0

Could THAT be the "formula" for infinity?

No, because 0 * infinity is equal to 0.  It's not possible for zero to be fit into a 1.

Because, after all, division is simply how many times a number fits into another.  0 never fits into a number, ever. 

Technically not even 0/0 works, because inversely, that is equal to literally every number ever, and therefor undefined. Any number besides 0 is just undefined.

Yes. And that would mean that...

1/0 > +∞ ?!  yikes

And, guys, yes, division by zero is impossible. But so is square rooting by a negative number, and that's why complex numbers were made. To get results from the impossible.

So, if we started a new branch of mathematics called infinometry, with the base "undefined" (as opposed to imaginary) number being 1/0... well idk  tongue
3+2i+5/0
We could make an equivalent of e for undefined numbers, such that ä^(z+q/0), where z and q are complex numbers, =ä^(Re(z) )+cos( (ln ä)Im(z)/i)+isin( (ln ä)Im(z)/i)+cos(Re(z)+q/0)+isin(Im(z)+q/0)+tan(q-z/0)/0...

...Or something like that  hmm

Infinometry is actually Calculus BC. Took it last year. Fun stuff.

Offline

 

#52 2010-12-20 18:05:10

Kileymeister
Scratcher
Registered: 2008-04-17
Posts: 1000+

Re: X=X+1: an obnoxious equation

complex wrote:

X=X+ 1 or -1 Is the formula for a random number between infinity and -infinity.

How so?  It doesn't equal any number between infinity and -infinity besides infinity and -infinity themselves.


I'm back, and showcasing two new* projects!  Click left or right on the image below to see!
http://img109.imageshack.us/img109/7905/part1l.pnghttp://img859.imageshack.us/img859/6417/part2bf.png

Offline

 

#53 2010-12-21 05:13:24

mathematics
Scratcher
Registered: 2009-03-01
Posts: 1000+

Re: X=X+1: an obnoxious equation

Just saying:
0 ∞ = indeterminate ≠ 0
∞/∞ = indeterminate ≠ 1

Last edited by mathematics (2010-12-21 05:13:41)

Offline

 

#54 2010-12-21 08:33:05

midnightleopard
Scratcher
Registered: 2007-09-13
Posts: 1000+

Re: X=X+1: an obnoxious equation

oops. I should have seen how it was false. *curses* oh well, at least I started a good old fashioned argument!


http://pwp.wizards.com/5103673563/Scorecards/Landscape.png

Offline

 

#55 2010-12-21 08:34:39

midnightleopard
Scratcher
Registered: 2007-09-13
Posts: 1000+

Re: X=X+1: an obnoxious equation

MaxtheWeirdo wrote:

In programming, that is valid code to change X by one.

X must have a value for that.


http://pwp.wizards.com/5103673563/Scorecards/Landscape.png

Offline

 

#56 2010-12-21 10:05:57

johndo77
Scratcher
Registered: 2010-07-30
Posts: 1000+

Re: X=X+1: an obnoxious equation

midnightleopard wrote:

oops. I should have seen how it was false. *curses* oh well, at least I started a good old fashioned argument!

I WIN!


Crizapples

Offline

 

#57 2010-12-21 10:40:45

antimonyarsenide
Scratcher
Registered: 2010-02-03
Posts: 1000+

Re: X=X+1: an obnoxious equation

TheSaint wrote:

Infinometry is actually Calculus BC. Took it last year. Fun stuff.

yikes


http://myfastcounter.com/count.php?c_style=75&id=1284314427
No, I'm not back (yet  tongue ), so pretend this is invisible.

Offline

 

#58 2010-12-22 02:26:19

mathematics
Scratcher
Registered: 2009-03-01
Posts: 1000+

Re: X=X+1: an obnoxious equation

midnightleopard wrote:

MaxtheWeirdo wrote:

In programming, that is valid code to change X by one.

X must have a value for that.

I think that's just a joke... or something like that.

Offline

 

#59 2010-12-22 02:54:53

PlayWithFire
Scratcher
Registered: 2010-01-20
Posts: 1000+

Re: X=X+1: an obnoxious equation

that question cannot be answered because you have a single x on both sides of the equation.  its impossible.

now x = 2x + 1

thats possible


http://scratch.mit.edu/static/projects/PlayWithFire/1610180_sm.png
Check out the DG Games Website For the latest news on games like Infected

Offline

 

#60 2010-12-22 03:38:41

mathematics
Scratcher
Registered: 2009-03-01
Posts: 1000+

Re: X=X+1: an obnoxious equation

@PlayWithFire Solution: x = -1

Offline

 

#61 2010-12-22 05:56:01

BlahBlahRatSheep
Scratcher
Registered: 2010-11-07
Posts: 500+

Re: X=X+1: an obnoxious equation

if this was X+X=1 I could easily find the answer but X=X+1 hurts my brain. e_e


"and knew ones will come and they will get poopular then theyll leave and more pooples will get poopular." -soupoftomato
http://i405.photobucket.com/albums/pp132/kimchi_and_chowder/lolicon.gif Lovely day to air out my tongue, yes?

Offline

 

#62 2010-12-22 08:08:21

recycle49
Scratcher
Registered: 2009-12-21
Posts: 1000+

Re: X=X+1: an obnoxious equation

X=X+1 this is unclear for its purpose is just to solve, and therefore yes it could be


"Every challenge must be met, every battle must be won, and every story will end." -Me
Recycle49 December 09 - November 11 Goodbye

Offline

 

#63 2010-12-22 08:12:23

recycle49
Scratcher
Registered: 2009-12-21
Posts: 1000+

Re: X=X+1: an obnoxious equation

what-the wrote:

Well lets rearrange the equation.

x = x + 1
Eliminate the x'es (One on each side so we can do it)

0 = 1

On another note 0 does = 1

0 * 0 = 1 * 0
Eliminate one zero from each side

0 = 1

For the first equation the only thing I can think of that would fit would be infinity and to even get into any of these situations you have to divide by zero. Even if it is 0/0.

Great point, could be zeros, but then its impossible for the fover equasion


"Every challenge must be met, every battle must be won, and every story will end." -Me
Recycle49 December 09 - November 11 Goodbye

Offline

 

#64 2010-12-22 08:50:31

RHY3756547
Scratcher
Registered: 2009-08-15
Posts: 1000+

Re: X=X+1: an obnoxious equation

Simple, it isn't an equation.
That's an inequation. You can't just make it an equation and puzzle over it for the rest of time.

Offline

 

#65 2010-12-22 09:53:52

what-the
Scratcher
Registered: 2009-10-04
Posts: 1000+

Re: X=X+1: an obnoxious equation

PLEASE DON'T SKIP THIS POST. READ IT.

RHY3756547 wrote:

Simple, it isn't an equation.
That's an inequation. You can't just make it an equation and puzzle over it for the rest of time.

I agree, making something up and puzzling about it is just dumb. There are many other things you can do. Though it could be fun to make something up and people take it seriously.

On another note.
To arrive at x = x + 1 in the first place you had to of divided by zero at some stage. As seen in my 0 = 1 equation (quoted a few posts above). This is against the rules of mathematics and therfore such an equation has broken the rules and should be disregarded.

Thank you.

Last edited by what-the (2010-12-22 09:59:09)


http://imageshack.us/m/64/9034/ddfss.pngMy site
Find someone post count. Click posts under username. Find number of pages. Times that by 40 for min and 60 for max and you have a rough estimate of post count.

Offline

 

#66 2010-12-22 11:59:54

roger-
Scratcher
Registered: 2010-02-13
Posts: 100+

Re: X=X+1: an obnoxious equation

Kileymeister wrote:

roger- wrote:

Infinity/1 * 1/Infinity = 1 AND = Infinity
^that's a fraction
Infinity/1 * 2/Infinity = 2 = Infinity
1 = Infinity
2 = Infinity
1 = 2

This means that math is undefined. All science is based off of math. Life is an illusion.
tongue

(infinity/infinity) is not equal to infinity. yes it is because infinity divided by any number is infinity

(infinity/1) * (2/infinity) is not equal to 2.check your math

Check your math.

you check your math

Last edited by roger- (2010-12-22 12:01:38)


Food is Fat. Fat is power.
        I am almighty.

Offline

 

#67 2010-12-22 12:04:06

illusionist
Retired Community Moderator
Registered: 2008-07-02
Posts: 1000+

Re: X=X+1: an obnoxious equation

Well, you know, if P=NP...


http://i.imgur.com/8LX1NrV.png

Offline

 

#68 2010-12-22 12:20:24

majormax
Scratcher
Registered: 2008-04-06
Posts: 1000+

Re: X=X+1: an obnoxious equation

roger- wrote:

Kileymeister wrote:

roger- wrote:

Infinity/1 * 1/Infinity = 1 AND = Infinity
^that's a fraction
Infinity/1 * 2/Infinity = 2 = Infinity
1 = Infinity
2 = Infinity
1 = 2

This means that math is undefined. All science is based off of math. Life is an illusion.
tongue

(infinity/infinity) is not equal to infinity. yes it is because infinity divided by any number is infinity. infinity divided by itself is 1

(infinity/1) * (2/infinity) is not equal to 2.check your math.  infinity/1=infinity and infinity/2=infinity and infinity*infinity=infinity, not two.

Check your math.

you check your math

From wikipedia:

Infinity (often symbolically represented by ∞) is a concept in many fields, most predominantly mathematics and physics, that refers to a quantity without bound or end. People have developed various ideas throughout history about the nature of infinity. The word comes from the Latin infinitas or "unboundedness".
In mathematics, "infinity" is often treated as if it were a number (i.e., it counts or measures things: "an infinite number of terms") but it is not the same sort of number as the real numbers. In number systems incorporating infinitesimals, the reciprocal of an infinitesimal is an infinite number, i.e. a number greater than any real number. Georg Cantor formalized many ideas related to infinity and infinite sets during the late 19th and early 20th centuries. In the theory he developed, there are infinite sets of different sizes (called cardinalities).[1] For example, the set of integers is countably infinite, while the set of real numbers is uncountably infinite.

It's actually not a number.
[/debate]

Offline

 

#69 2010-12-22 12:27:58

Lightnin
Scratch Team
Registered: 2008-11-03
Posts: 1000+

Re: X=X+1: an obnoxious equation

midnightleopard wrote:

X=X+1. How can a number equal itself plus 1? Would this be the formula for infinity?

To me it looks like an iterative equation. Rather simple, but with something a bit more complicated you can get interesting behavior.

For example, this project uses a similar equation: x = rx(1-x)

But in this case, it really means the next value of x is equal to rx(1-x). 

And iterates it a couple thousand times and draws a graph of each value of x with it. As you'll see, there's some interesting / weird behavior.

So anyway, an equation like your original becomes more interesting if you think of it as happening iteratively, across time.


Help Scratchers make the leap to 2.0!
http://img818.imageshack.us/img818/6844/transitionteam.jpg

Offline

 

#70 2010-12-22 12:40:29

roger-
Scratcher
Registered: 2010-02-13
Posts: 100+

Re: X=X+1: an obnoxious equation

illusionist wrote:

Well, you know, if P=NP...

what.


Food is Fat. Fat is power.
        I am almighty.

Offline

 

#71 2010-12-22 12:42:09

roger-
Scratcher
Registered: 2010-02-13
Posts: 100+

Re: X=X+1: an obnoxious equation

majormax wrote:

roger- wrote:

Kileymeister wrote:


(infinity/infinity) is not equal to infinity. yes it is because infinity divided by any number is infinity. infinity divided by itself is 1

(infinity/1) * (2/infinity) is not equal to 2.check your math.  infinity/1=infinity and infinity/2=infinity and infinity*infinity=infinity, not two. 2/infinity

Check your math.

you check your math


Food is Fat. Fat is power.
        I am almighty.

Offline

 

#72 2010-12-22 18:09:07

Kileymeister
Scratcher
Registered: 2008-04-17
Posts: 1000+

Re: X=X+1: an obnoxious equation

roger- wrote:

Kileymeister wrote:

roger- wrote:

Infinity/1 * 1/Infinity = 1 AND = Infinity
^that's a fraction
Infinity/1 * 2/Infinity = 2 = Infinity
1 = Infinity
2 = Infinity
1 = 2

This means that math is undefined. All science is based off of math. Life is an illusion.
tongue

(infinity/infinity) is not equal to infinity. yes it is because infinity divided by any number is infinity

(infinity/1) * (2/infinity) is not equal to 2.check your math

Check your math.

you check your math

I said is not equal to 2, and any number divided by infinity is not equal to infinity.  Infinity divided by infinity would be undefined.

Last edited by Kileymeister (2010-12-22 18:10:34)


I'm back, and showcasing two new* projects!  Click left or right on the image below to see!
http://img109.imageshack.us/img109/7905/part1l.pnghttp://img859.imageshack.us/img859/6417/part2bf.png

Offline

 

#73 2010-12-22 20:47:44

midnightleopard
Scratcher
Registered: 2007-09-13
Posts: 1000+

Re: X=X+1: an obnoxious equation

argh it is false. I wasn't thinking when I posted this I look like an idiot. I wasn't thinking that way, I was just thinking about infinity and how a number equals itself plus one goes on forever. *face palms* I am an idiot.

**I AM REQUESTING TO CLOSE THIS BEFORE I AM EMBARRASSED EVEN MORE**

Last edited by midnightleopard (2010-12-22 20:49:01)


http://pwp.wizards.com/5103673563/Scorecards/Landscape.png

Offline

 

#74 2010-12-22 20:57:14

mariobrosrule
Scratcher
Registered: 2008-06-09
Posts: 1000+

Re: X=X+1: an obnoxious equation

midnightleopard wrote:

X=X+1. How can a number equal itself plus 1? Would this be the formula for infinity?

Impossible.
If you simplify it, it turns into 0=1. And that is untrue.

Offline

 

#75 2010-12-22 20:57:44

Paddle2See
Scratch Team
Registered: 2007-10-27
Posts: 1000+

Re: X=X+1: an obnoxious equation

Closed by request of the topic owner  smile


http://i39.tinypic.com/2nav6o7.gif

Offline

 

Board footer