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View Full Version : Da Fok? Zero is a troll!


ColonelCossack
25th November 2011, 20:26
Ok, so,

1x0=2x0
right?

Because both sides of the above equation equal each other, and they both have x0's, we can cancel out the x0's.

That makes... 1=2!!!!!!

I'm not sure if I believe it, and I think it's wrong. Is this just an exception to the rules concerned?

I'm gonna go and ask route -1...

DA FOK?????
Susurrus
25th November 2011, 20:28
You are dividing by zero, my friend.
ZeroNowhere
25th November 2011, 20:31
No I'm not.
ColonelCossack
25th November 2011, 20:34
No I'm not.

I wasn't referring to you... silly moo.

I knew I was dividing by zero, I just realised that that's a proof of why dioing that... doesn't work.
Leftie
25th November 2011, 20:36
No.

You divide both sides of the equation by 0 so they both equal infinity.
Ravachol
25th November 2011, 20:39
0 is the absorbing element of the multiplication operator, which means that for every real number, multiplying it with 0 gives you 0. This is also the reason why you can't divide by zero. For an operation to be the inverse of another operation (division as the inverse op multiplication over the set of real numbers), there has to be a bijective (ie. one-to-one) relation. This is not the case if there is an absorbing element in the set, which by definition makes the relation non-bijective.
ColonelCossack
25th November 2011, 20:39
No.

You divide both sides of the equation by 0 so they both equal infinity.

Indeed.

I went to a maths lecture today with my school; that was where that problem was presented, as proof that you cannot divide anything by 0.
TheGodlessUtopian
25th November 2011, 20:40
What the hell is this thread suppose to be about?
Ocean Seal
25th November 2011, 20:41
No zero is not a troll, but when you divide by zero you lose information.

for example if you have A*2=C*3 you generally specify find the non-trivial solution (ie: the one where A and C are not zero). So dividing by zero, taking a derivative all are things that cause loss of information.
ColonelCossack
25th November 2011, 20:42
What the hell is this thread suppose to be about?

I don't even know, and I made it, because I appear to be a blithering idiot. I think I just got divided by zero.
Ravachol
25th November 2011, 21:30
No zero is not a troll, but when you divide by zero you lose information.

for example if you have A*2=C*3 you generally specify find the non-trivial solution (ie: the one where A and C are not zero). So dividing by zero, taking a derivative all are things that cause loss of information.

This is because the functions you specified (using an operator in combination with it's absorbing element, taking a derivative,etc.) are all non-bijective, ie. non-one-to-one functions. The same holds, for example, for modular operations.