Someone want to explain to me, how:
5 / 0 = #inf
someone want to explain to me why, EzrahChan is dead set on how it's possible, using the theorim from this website.
Personally I think he just miss-read it. Because it is not possible to divide a number by zero.
I've read his "proof" up and down twice now, and I don't see how it works. Dividing by Zero doesn't work.
Dec 10 2005, 5:28 pm
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Hell Ramen
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That was funny. =p
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Wouldn't you get 0?
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Nae, it's undefined.
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The thing is, if thinking of zero as a number rather than a concept, you could have infinite groups of 'zero'. Then, taking digits from 5, you can put the numbers in to infinite such 'groups' of zero. Technically, yeah, you can't divide by zero, but of course, this is probably how it would go if people tried to find a way to.
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The site says that a nonzero constant divided by zero "is" infinity--emphasis on the quotation marks. It doesn't truly equal infinity, but it exhibits some behaviors similar to what would happen if it actually did. The concept relies on limits, and if you haven't run into them before the idea works something like this:
Take 5/1. You get 5. Take 5/0.1 . You get 50. Take 5/0.01. You get 500. See the pattern? With each iteration you're getting closer to 5/0, and the value is getting higher and higher. You can continue this process indefinitely, adding more and more zeroes and getting higher and higher quotients. You can add an infinite number of zeroes, creating a number that is infinitely close to zero, and dividing five by it will yield infinity. Now, as you might guess there's not really a whole lot of difference between "a number that is infinitely close to zero" and zero itself, so for some purposes you can treat something divided by zero as being infinity. But technically, no, 5/0 is still undefined. | |
You can divide an orange, just remember... it's not there.
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What the.... how stupid would you have to be. Look, it's like this. The answer to a quotient times the demoninator equals the numerator. What times 0 equals 5? 0 times infinity is still 0. This is stupid. I didn't bother looking at the calculus. All I saw was him trying to use L Hospital's rule, which makes him more of a moron.
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Oh, and don't try to say "it's a limit so you might be able to make it work." Ever heard of asymptotes or non-continuous points? It's to point out in a graph that you can't pull shit like this.
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I was thinking of dividing numbers by zero, silly me. (0/5 = 0 right?)
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Yeah, 0/5 is 0. 0 divided by anything is zero. But I can't wait till someone gets the enlightened idea to "oh, I should try and use calculus to prove that 0/ infinity = a positive integer." Some people need to give it a rest.
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It's to point out in a graph that you can't pull shit like this math isn't about pulling shit. This is stupid. I didn't bother looking at the calculus. All I saw was him trying to use L Hospital's rule, which makes him more of a moron. huh? that's what math is about, building upon basic axioms to come up with rules. it doesn't matter what you think, the answer is the answer. | |
Maths is serious business.
orange/apple = banana?! wtf stfu n00b! | |
"math isn't about pulling shit."
That's what i'm saying. "huh? that's what math is about, building upon basic axioms to come up with rules. it doesn't matter what you think, the answer is the answer." What's your point? Are you trying to say you agree that 5/0 = infinity? *snicker* some people are too gullible. | |
How many times does zero go into a number?
Infinite times. But nothing ever happens. :P | |
"math isn't about pulling shit." That's what i'm saying. you make it seem like this is just a trick, and that using rules is some type of magic. math isn't about going on a hunch and guessing something that sounds reasonable to you. in the thread about "0.9R = 1", you also made it seem like there was some sneaky move that someone pulled to create an illusion. if there's a flaw in the math, find it and point it out. if you can't find a flaw (or if there isn't one), how can it be wrong? not understanding the math doesn't make it wrong. | |
don't bring up the .9999R = 1 thing. I already gave my reason why I thought it was wrong. That was simply a matter of interpretation. This, on the other hand, is bullshit. No matter how you look at it, 5/0 is not infinity. It's like making something out of nothing. It's just basics. You don't need to make it advanced if you don't have to.
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5/0 is undefined, but the limit of 5/h as h tends to zero is infinity. What's the problem with that? Do you hate all of calculus? They rely on 'clever mathematical tricks' to divide things by zero without actually dividing by zero.
.9R != 1, though. The problem with that proof (And yes, I've seen it before), is that one of the .9Rs is one step 'ahead' of the other .9Rs. They're both infinite, but one of them has one more 9 then the other, which screws up the subtraction. | |
We aren't discussing what 5/h approaches as it reaches 0. Of course that would be 0. They are trying to say that 5/0 is infinity. And i'm saying that is stupid. Jeez, I think there are more misunderstaniing problems then anything else.
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It's a potential infinity. You are stupid for not understanding this.
What's the biggest number? It's infinity - But not infinity 'the number', but infinity as in a potential infinity. If you count long enough, you can get as high as you want. 5/0 is coming into the same thing. And for all mathematical intents and purposes, 5/h as h tends to zero = 5/0. And it equals infinity. | |