# Can 0/0 explain the universe?

## Recommended Posts

The question of how the universe came into existence is a mystery. I was thinking that the answer to that is simply: 0/0.

If we look at this mathematically then it kind of makes sense.

Let "0" represent the universe before it came into existence.

x=0

x/0 = infinity

x/x = 1

nx/x = n

Could nothingness be impossible and if so could the universe have been created 14 billion years ago or could it have just been there forever? What if there had always been a universe and all matter was compressed into a singularity which at one moment in time made a big bang? What do you think?

##### Share on other sites

x/0 = infinity

No. Any quantity divided by 0 is undefined. That includes dividing 0 by 0.

##### Share on other sites

No. Any quantity divided by 0 is undefined. That includes dividing 0 by 0.

Both

$\frac{0}{0}$

and

$\frac{\infty }{\infty }$

can sometimes be evaulated. Some techniques are included in elementary calculus and even pre-calculus.

This does not mean I endorse the original post.

Edited by studiot
##### Share on other sites

"Can 0/0 explain the universe?"

No.

##### Share on other sites

Yes it is according to my simple calculation.

infinity/ 1 = infinitesimal or 0.000recurring 1

So the inverse of that is infinity

Proof of infinitesimals being rounded can be proved by this.

x = 0.999recurring

10x = 9.999recurring

10x - x = 9x

9x = 9

9x/ 9 = 1

x = 1

It's something I have worked out myself but it has been confirmed. Apparently it was actually some of the early work of Sir Issac Newton!

Edited by morgsboi
##### Share on other sites

Proof of infinitesimals being rounded can be proved by this.

x = 0.999recurring

10x = 9.999recurring

10x - x = 9x

9x = 9

9x/ 9 = 1

x = 1

It's something I have worked out myself but it has been confirmed. Apparently it was actually some of the early work of Sir Issac Newton!

This is a well-known result, which involves no use of infinitesimals, but ordinary algebra

http://en.wikipedia.org/wiki/0.999...#Digit_manipulation

##### Share on other sites

Many, many years ago it was explained to me that 0/0 is indeterminate. It's value depends on the equation which when simplified gave you 0/0.

This was in my introduction to calculus - enough of which I retained to pass an exam and then forgot!

I personally would like you to make 0/0=42 as that is the ultimate answer to Life, The Universe and Everything.

http://en.wikipedia....iki/42_(number)

Edited by Joatmon
##### Share on other sites

I wonder if questions of this type arise frequently because of the scant treatment paid to infinite sequences, series and products these days in early maths and also if this is why questioners shy away when it is pointed out that the ratios 0/0 and infinity /infinity can result in a definite value.

##### Share on other sites

0/0 etc. are questions that belong in mathematics. They have nothing to do with the physics of the universe.

##### Share on other sites

0/0 etc. are questions that belong in mathematics. They have nothing to do with the physics of the universe.

Indeed. I'll go a step further and move this to speculations.

##### Share on other sites

Indeed. I'll go a step further and move this to speculations.

Read through it again. The question is not in the mathematics itself, but the relation to the universe. What did you think it was? Random symbols?

##### Share on other sites

What did you think it was? Random symbols?

Well, I can't answer for Mississippichem, but I think it's random symbols.

##### Share on other sites

Well, I can't answer for Mississippichem, but I think it's random symbols.

Congratulations...... you're wrong on infinite levels!! Sorry, I forgot your medal.

##### Share on other sites

Congratulations...... you're wrong on infinite levels!! Sorry, I forgot your medal.

Whereas you are only wrong on one level. The fact that division by zero is not defined and so your "explanation" of the universe has no meaning.

##### Share on other sites

Whereas you are only wrong on one level. The fact that division by zero is not defined and so your "explanation" of the universe has no meaning.

Why isn't it defined? 0/0 can be anything and everything as my math proves. If you like, prove me wrong but use a quote on the way and explain yourself too.

##### Share on other sites

Well... considering the following:

$\lim_{x \to 0} \frac{0}{x} = 0$,

Suggests that 0/0 does not represent a universe where everything came from nothing.

##### Share on other sites

Well... considering the following:

$\lim_{x \to 0} \frac{0}{x} = 0$,

Suggests that 0/0 does not represent a universe where everything came from nothing.

What if:

$\lim_{x \to 0} \frac{0}{x} = Anything$

##### Share on other sites

What if:

$\lim_{x \to 0} \frac{0}{x} = Anything$

Well the point is that it does not equal anything because the limit equals zero.

##### Share on other sites

Well the point is that it does not equal anything because the limit equals zero.

Apologies, forgot to change the limit, haha!

##### Share on other sites

This is why division by zero is undefined:

Given that $z=\frac{y}{x}$ assigns to each point ($x$, $y$) a real number $z$. Then the limit$, \ \lim_{(x, y) \to (a, b)} \frac{y}{x} \ ,$ can only exist if all paths in the domain, $\{(x,\, y) \in \mathbb{R}^2\}$, approach the same value. If we choose multiple lines (paths in the domain) of the form $y=m\, x$, then as $x$ approaches zero $y$ also approaches zero such that:

$\lim_{(x, y) \to (0, 0)} \frac{y}{x} \ =\ \lim_{x \to 0} \frac{m\, x}{x} = m$

Notice how the value of the limit depends on the direction at which you approach zero - different values of $m$. Since we get different values for the limit as $x$ and $y$ approach zero, the limit does not exist. Hence the reason why division by zero is undefined.

##### Share on other sites

This is why division by zero is undefined:

Given that $z=\frac{y}{x}$ assigns to each point ($x$, $y$) a real number $z$. Then the limit$, \ \lim_{(x, y) \to (a, b)} \frac{y}{x} \ ,$ can only exist if all paths in the domain, $\{(x,\, y) \in \mathbb{R}^2\}$, approach the same value. If we choose multiple lines (paths in the domain) of the form $y=m\, x$, then as $x$ approaches zero $y$ also approaches zero such that:

$\lim_{(x, y) \to (0, 0)} \frac{y}{x} \ =\ \lim_{x \to 0} \frac{m\, x}{x} = m$

Notice how the value of the limit depends on the direction at which you approach zero - different values of $m$. Since we get different values for the limit as $x$ and $y$ approach zero, the limit does not exist. Hence the reason why division by zero is undefined.

Sorry, that's getting a bit much for me. I'm only 15, haha! But I understand some of it.

##### Share on other sites

Sorry, that's getting a bit much for me. I'm only 15, haha! But I understand some of it.

That's perfectly fine. If you are really interested in mathematics, then I would suggest that you ask your math teachers as many questions as possible. In addition, it wouldn't hurt to try and get into some AP (advanced placement) math classes if your school has them. That way you can earn college credit if you score high on the AP test. As you progress in your studies of mathematics, you will begin to understand the type of math, multivariate calculus, that I used to demonstrate why division by zero is undefined.

##### Share on other sites

That's perfectly fine. If you are really interested in mathematics, then I would suggest that you ask your math teachers as many questions as possible. In addition, it wouldn't hurt to try and get into some AP (advanced placement) math classes if your school has them. That way you can earn college credit if you score high on the AP test. As you progress in your studies of mathematics, you will begin to understand the type of math, multivariate calculus, that I used to demonstrate why division by zero is undefined.

My school isn't the best for people of my ability. I do, however, like to question things.

##### Share on other sites

#7 refers.

If you calculate (8-x^3)/(2-x) when x=2 you get 0/0.

However I want to watch a TV prog now so I'll just say I make this example of 0/0 equal to 12.

If anyone doubts this then I'll come back later.

##### Share on other sites

#7 refers.

If you calculate (8-x^3)/(2-x) when x=2 you get 0/0.

However I want to watch a TV prog now so I'll just say I make this example of 0/0 equal to 12.

If anyone doubts this then I'll come back later.

Okay, but why does it equal 12?

$(12*x)/x$ ?

Edited by morgsboi
##### Share on other sites

This topic is now closed to further replies.
×