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Thread: Is infinity equal to negative infinity?

  1. #1 Is infinity equal to negative infinity? 
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    If we make this a number line:

    <------------------------->

    then infinity and negative infinity would be at

    negative infinity<-----------------------------> infinity


    Now, infinity is believed to be 1/0

    And negative infinity is -1/0

    *****

    0 is both negative and positive, so both quantities must be the same, right? This means that infinity and negative infinity are the same.

    The simple way of disproving this is to find a function f(x) that approaches some number at infinity, and another number at negative infinity. If any function approaches two different numbers at this point, then my premise would be disproved.

    If negative infinity is equal to infinity, then I assume that the number line would be an infinitely narrow ellipse where infinity and negative infinity are the two endpoints. Would this be a new way of approaching limits?

    I haven't done calculus yet.


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  3. #2  
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    Here's a function that disproves your idea, like you said.



    The limit as x goes to infinity is 1 and the limit as x goes to negative infinity is -1.


    "There is a kind of lazy pleasure in useless and out-of-the-way erudition." -Jorge Luis Borges
     

  4. #3 Re: Is infinity equal to negative infinity? 
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    Quote Originally Posted by Duelix
    If we make this a number line:

    <------------------------->

    then infinity and negative infinity would be at

    negative infinity<-----------------------------> infinity


    Now, infinity is believed to be 1/0

    And negative infinity is -1/0

    *****

    0 is both negative and positive, so both quantities must be the same, right? This means that infinity and negative infinity are the same.

    The simple way of disproving this is to find a function f(x) that approaches some number at infinity, and another number at negative infinity. If any function approaches two different numbers at this point, then my premise would be disproved.

    If negative infinity is equal to infinity, then I assume that the number line would be an infinitely narrow ellipse where infinity and negative infinity are the two endpoints. Would this be a new way of approaching limits?

    I haven't done calculus yet.
    Neither infinity nor negative infinity are really numbers.

    There are various ways to handle the concept of infinity, which you can see discussed in the thread here:

    http://www.thescienceforum.com/What-...ity-23750t.php

    There is another meaning that is suggested by your question. You can adjoint a single number to the real line, the "point at infinity" and create a compactification of the line, which in this case is simply a circle. The" point at infinity" being used to tie the "ends" of the line together. This is sometimes called the real projective line, or the one-point compactification of the line.

    http://en.wikipedia.org/wiki/Real_projective_line

    You can also adjoint two point to the line -- positive infinity and negative infinity -- and compactify it in that manner. That is what is discussed in the thread noted above.

    It is not true that 1/0 is infinity. In fact 1/0 is not defined at all.
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  5. #4  
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    where is if c is positive, and if c is negative. The function, as dr rocket pointed out above, has no meaning when x is 0.
    Wise men speak because they have something to say; Fools, because they have to say something.
    -Plato

     

  6. #5 Re: Is infinity equal to negative infinity? 
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    Quote Originally Posted by Duelix
    If we make this a number line:
    0 is both negative and positive, so both quantities must be the same, right? This means that infinity and negative infinity are the same.
    0 isn't negative and isn't positive. 0 is 0.
     

  7. #6 Re: Is infinity equal to negative infinity? 
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    Quote Originally Posted by Yuliana
    Quote Originally Posted by Duelix
    If we make this a number line:
    0 is both negative and positive, so both quantities must be the same, right? This means that infinity and negative infinity are the same.
    0 isn't negative and isn't positive. 0 is 0.
    no, really :wink:
    http://whatreallyhappened.com/WRHART...alwarming.html
    Global warming is an inconvenient lie!

    Student
     

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    1-19-13 Duelix....what if I were to tell you that there are two different infinities that I have been looking into? Here is one: I use pizzas as models since the pizza is representative of a whole and its parts. One pizza can be expressed as10 to the zero power. I ask you, what exponential power would ten pizzas have? Would it be 10 to the first power? What exponential power would 100 hundred pizzas have? Can the number of 100 pizzas be expressed as 10 to the 2nd power?

    The next question is
    : do I have enough concrete materials and ingredients to make an infinite number pizzas? The next question: what exponential power would you give an infinite number of pizzas?
    Or do I have enough materials and ingredients to make only a finite number of pizzas up to 10 to the "positive z? Can you express an infinite number of pizzas as exponent: 10 to the positive infinity....let me know if you want to talk about more concepts of infinity! eaglepass: my quote-IN ORDER TO THINK OUTSIDE THE BOX, YOU MUST FIRST STEP OUT OF THE BOX!
    Last edited by eaglepass; January 24th, 2013 at 09:55 PM.
     

  9. #8  
    Genius Duck Moderator Dywyddyr's Avatar
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    Quote Originally Posted by eaglepass View Post
    IN ORDER TO THINK OUTSIDE THE BOX, YOU MUST FIRST STEP OUT OF THE BOX!
    This box?
    c1454_pizza_box.jpg
    I agree.
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  10. #9  
    Brassica oleracea Strange's Avatar
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    Note the artist's powerful use of colour. This far more than just a rejection of convention as it may, at first, appear. It is highly symbolic at multiple levels. First, note that the colour chosen is red. This colour appeals to our most basic instincts. It is a powerful colour. It is the first pigment that early man had access to. In contrast to blue, which was for millennia the rarest and then the first synthetic pigment. Red is also the first colour word that a language gains. It is also the colour of blood. In this case, dried blood. The blood of ideas that have been dead for three years.

    But at another, epistemological, level the artists is making us think about how the message is presented. He takes McLuhan's famous dictum, "the medium is the message" and drags at once to the dawn of man and into the 21st century. Should we see patterns in the use of red throughout the message? Do the highlighted words contain a second level of meaning? We can spend hours working on this puzzle. But then we realise he has pulled of a brilliant double bluff: neither the message nor the medium have any meaning at all.

    And then we come to his final line, present on all his work almost like a signature, where he attempts throw the blame for the lack of meaning onto the viewer.

    Truly one of his most important works.


    [From Empty Boxes; New Perspectives on Modern Art by Francis Arkwright and Fanny Adams, published by Sanguedolce Press, 2013]
    Last edited by Strange; January 20th, 2013 at 10:38 AM. Reason: spelling
    ei incumbit probatio qui dicit, non qui negat
     

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    A case for an infinitely large cosmos (universe) can be made. But can there be an infinitely small cosmos (universe)? ...
     

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    Quote Originally Posted by Strange View Post
    Note the artist's powerful use of colour.
    The artist's work in ceramics is legendary.
     

  13. #12  
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    Quote Originally Posted by Write4U View Post
    A case for an infinitely large cosmos (universe) can be made. But can there be an infinitely small cosmos (universe)? ...
    An infinitely large possibility is a possibility. There seem to be good indications for a lower limit on size (Planck dimension, loop quantum gravity, etc.).

    [Not that scale is in anyway equivalent to positive and negative.]
    ei incumbit probatio qui dicit, non qui negat
     

  14. #13  
    Brassica oleracea Strange's Avatar
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    Quote Originally Posted by Harold14370 View Post
    The artist's work in ceramics is legendary.
    Although many of those works were later found to have serious structural defects, sadly.
    ei incumbit probatio qui dicit, non qui negat
     

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    I feel sure I have done this before, but I cannot find it....

    Suppose I take a segment of the real line and join the two ends together. This we recognize as a circle; grand folk call it the 1-sphere . Now since this is essentially the "same" as our line segment , we might expect to be able to find a one-to-one correspondence between them. This correspondence - an isomorphism on sets, or indeed a homeomorphism on topological spaces - will be given by an invertible function from one to the other.

    Of course no such function exists; the map sends the two ends of to same point of - our "join". And since well-behaved functions are not allowed to send a single point in the domain to distinct points in the co-domain, there can be no inverse .

    Now there is a theorem (due I think to Dedekind and Pierce) that states that an infinite set is always isomorphic to a proper subset of itself. Since and since isomorphism is an equivalence relation, by transitivity we might expect to be able to do something like the following.

    Place our circle anywhere on the real line with our "join" at the North pole, and project each point of "down" to a point in in such a way that none of these projections intersect each other or .

    All goes swimmingly until we get to the North pole, where now our projections run parallel to and seem never to meet it.

    But we have the perfect construction specifically made for just this purpose, called the "projective real line". This is formed by adjoining what's called the "point at infinity" to to form .

    So now our point at the North pole projects to this point at infinity, and a homeomorphism can be recovered, but at some cost; parallel lines meet!

    Worse still, since the two projections - "left" and "right" - from the North pole map to the same point in our projective line, this implies that, in , the "end-points" may be considered as the same point. id est .

    Don't like the idea? Tough - it is mainstream mathematics!!
     

  16. #15  
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    i know about the Pizza but aparently im on crack so why listen?
    ps deulix in answer yes. oh and guitarist 22/7
    Last edited by fiveworlds; January 20th, 2013 at 10:17 PM.
     

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    Is having an infinite amount of money the same as having an infinite amount of debt?
     

  18. #17  
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    Quote Originally Posted by ellatha View Post
    Is having an infinite amount of money the same as having an infinite amount of debt?
    Yes. Thus; current U.S. banking problems. And they didn't even get up to infinite amounts.
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  19. #18  
    Malignant Pimple shlunka's Avatar
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    I may be incorrect here, but instead of the two infinities being the same, would they not be polar opposites? Such as, 10^inf and 10^-inf would be completely opposite vectors? Sorry if I'm completely wrong here, my knowledge of mathematics is infinitesimal.
     

  20. #19  
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    Yes, they would be.
     

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    i agree with you
    Last edited by fiveworlds; January 21st, 2013 at 10:19 AM.
     

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    Quote Originally Posted by Neverfly View Post
    Yes, they would be.
    Thank you for the clarification.
     

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    Quote Originally Posted by shlunka View Post
    Thank you for the clarification.
    Yeah, I had this long drawn out post in mind, but once I put fingers to keyboard... I lost the motivation. Limit theory and Tex editor and a sudden desire to put one in my brainpan....
    Quote Originally Posted by fiveworlds View Post
    completely right x completes y. i was using sin sin-1 one can never exsist without the other. You mess with it you just create disease like aids and stuff. some things caent be fixed ps sin-1 was shorter tiny amount but still there
    What have you been smokin'?
     

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    Quote Originally Posted by shlunka View Post
    I may be incorrect here, but instead of the two infinities being the same, would they not be polar opposites? Such as, 10^inf and 10^-inf would be completely opposite vectors? Sorry if I'm completely wrong here, my knowledge of mathematics is infinitesimal.
    No, 10^-inf would be an infinitesimally small number. Negative infintiy would be a large negative number.
     

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    no i would imagine they are interference patterns carry info but what do i know
     

  26. #25  
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    Quote Originally Posted by fiveworlds View Post
    but what do i know
    Well, since you post statements like "i was using sin sin-1 one can never exsist without the other. You mess with it you just create disease like aids and stuff." the obvious answer would be "Very little, and you obviously feel compelled to demonstrate that at every opportunity".
     

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    well yeah but i try my best and the graph is easy same distances 7 or whatever different heights. and everyone knows what viruses are. and p=np also works for movies they run in a set time and you have images of various diff sizes running in polynomial time
     

  28. #27  
    Brassica oleracea Strange's Avatar
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    Quote Originally Posted by fiveworlds View Post
    well yeah but i try my best and the graph is easy same distances 7 or whatever different heights. and everyone knows what viruses are. and p=np also works for movies they run in a set time and you have images of various diff sizes running in polynomial time
    Is fiveworlds a bot running one of those algorithms for creating grammatically correct sentences using random words?
    ei incumbit probatio qui dicit, non qui negat
     

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    no but i like living outside the box
     

  30. #29  
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    Quote Originally Posted by fiveworlds View Post
    no but i like living outside the box
    I think the actual wording you were looking for is "out of your tree".
     

  31. #30  
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    Quote Originally Posted by fiveworlds View Post
    no but i like living outside the box
    Is the land of Gibberish outside the box?
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  32. #31  
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    Quote Originally Posted by fiveworlds View Post
    no but i like living outside the box
    By box, do you mean braincase?
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    na just away from strange.by the way what is the box?
     

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    Quote Originally Posted by fiveworlds View Post
    na just away from strange.by the way what is the box?
    Strange is usually one of the best contributors to the forum. You'd do well to sidle up next to him and learn all you can. You might even learn what the "box" is. I use the word as you suggested it.
     

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    oh i know im just playing with ya
     

  36. #35  
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    Quote Originally Posted by fiveworlds View Post
    oh i know im just playing with ya
    Oh... well.. FINE!
     

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    learning stuff hmm i do that anyways
    Last edited by fiveworlds; January 21st, 2013 at 12:25 PM.
     

  38. #37  
    Genius Duck Moderator Dywyddyr's Avatar
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    One graphic indicator that you could consider + and - infinity to be the same (if you haven't read Guitarist's post) is the tangent curve:
    tanx.jpg

    Unless you believe that a circle isn't actually a circle (i.e. it has discontinuities every 90 degrees) then you might as well take it that each line is directly connected to the next, i.e. disappears at infinity and reappears (after having "gone round") at minus infinity.
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    hey duckie...ozm! I like it! You are coming around. By the way, can anyone "boxed in the pizza box" explain where negative numbers come from?
    in order to think outside the box, "the duck" must first step out of the box!
     

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    HEY WRITE 4U...REFERENCE YOUR January 20th, 2013, 06:49 AM THREAD...A case for an infinitely large cosmos (universe) can be made. But can there be an infinitely small cosmos (universe)?
    TRY THE ATOM; IT MIGHT BE SIMILAR TO A SMALL COSMOS.
     

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    Eaglepass. You are not making sense. The material you are posting is not appropriate for the mathematics section. Please confine your efforts to the pseudoscience or trash can forums.
     

  42. #41  
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    Quote Originally Posted by eaglepass View Post
    hey duckie...ozm! I like it! You are coming around. By the way, can anyone "boxed in the pizza box" explain where negative numbers come from?
    in order to think outside the box, "the duck" must first step out of the box!
    Once again, and as usual, you seem to be confusing your inability to think coherently as "thinking outside the box".

    As for "where negative numbers came from", I happen to have a bootleg copy of an old Hollywood draft script for a blockbuster movie (not made) that featured the actual event that "created" negative numbers.
    I'll transcribe it later today, sometime in the next couple of hours.

    (I figured a Hollywood-type explanation would be more suited to your apparent comprehension, the attendant explosions and gun battles might help you focus and actually learn something).
    Last edited by Dywyddyr; January 22nd, 2013 at 02:59 AM.
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  43. #42  
    Brassica oleracea Strange's Avatar
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    Quote Originally Posted by eaglepass View Post
    TRY THE ATOM; IT MIGHT BE SIMILAR TO A SMALL COSMOS.
    It might be but it isn't. Not in the slightest.

    We all had that idea as children. Some of us later learned to think (there were no boxes involved).
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  44. #43  
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    In the words of Gandalf - "You shall not eagle-pass"

    And on that note, shouldn't we just lock this thread?
    As is often the case with technical subjects we are presented with an unfortunate choice: an explanation that is accurate but incomprehensible, or comprehensible but wrong.
     

  45. #44  
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    The Numbers Game - draft script (partial)

    Scene, early morning, Egypt 40,0000,0000 AC/ DC, sunrise, open desert

    Camera zooms in slowly on a dust trail, which gradually reveals itself to be a string of camels wending their way along a dry track, various riders chat quietly to each other. Suddenly there's a burst of activity and a A-10 Warthog sandworm orbital battlestation disruption happens, one camel falls to the ground with a snap of its leg.

    Close up on the screaming camel: They done got me boss! I'm a gonner! Tell my girl I didn't suffer and make sure my kids go to college.

    The camel expires slowly, close up remains on his face, fade to:

    Later in the day, busy market scene;

    Trader 1: Salaam aleykum
    Trader 2: Salamis? I don't like 'um - waddaya got?
    Trader 1: Here are the camels my master promised you. But... one died on the way here.
    Trader 2: I paid yer boss's skinny ass for 5 camels and he sends me four? What's he trying to pull?
    Trader 1: But surely effendi, it's an act of god, you can't blame my master.
    Trader 2: Damn right I'm offended, he's tryn'a stiff me!

    They start shouting and arguing. Camera pulls back to reveal a group of people, neatly dressed and led by a salt-and-pepper haired man with a rigid military bearing, he reaches into his pocket, retrieves a wallet and shows the contents to the two traders:

    Man: Gibbs, NCIS, what's the problem?
    Trader 2: His boss is trying to cheat me, sent only four camels when I paid for five. What's it to do with you?
    Man (Gibbs): Camels are the ships of the desert, that makes it a naval matter. McGee!
    McGee: Boss.
    Gibbs: These guys are talking numbers, geek territory, it's your ground. Find out what the problem is.

    McGee and the traders go into a lengthy technical discussion, involving the words "four" and "five". McGee nods his head and turns to Gibbs:

    McGee: It's like this boss - he sent only four camels when he paid for five.
    Gibbs: Good work work McGee. Think you can do anything here?
    McGee: Well, I could jiggle the framistat, quantumise the wiggly bit then put my left leg in and shake it all about before...
    Gibbs: In English McGee.
    McGee: Sorry boss. This guy could owe this guy one camel.
    Gibbs: Owe?
    McGee: Yeah, He could promise (and cross his heart) that next time he gets a camel it goes straight to this guy.
    DiNozzo and David (together): That's crazy, but it just might work.

    Gibbs explains this to the two traders, with a look of astonishment they agree and shake hands.

    NCIS walk away, another case solved.

    Gibbs: Good work McGee, I think your solution will solve a lot of problems in the future. Any idea what we should call this type of numbering?
    McGee: Negative boss.
    Gibbs, taking the last sip of his coffee: That's good enough for me, write it up.
    Last edited by Dywyddyr; January 22nd, 2013 at 01:55 PM.
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  46. #45  
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    Quote Originally Posted by Dywyddyr View Post
    The Numbers Game - draft script (partial)

    Scene, early morning, Egypt 40,0000,0000 AC/ DC, sunrise, open desert

    Camera zooms in slowly on a dust trail, which gradually reveals itself to be a string of camels wending their way along a dry track, various riders chat quietly to each other. Suddenly there's a burst of activity and a A-10 Warthog sandworm orbital battlestation disruption happens, one camel falls to the ground with a snap of its leg.

    Close up on the screaming camel: They done got me boss! I'm a gonner! Tell my girl I didn't suffer and make sure my kids go to college.

    The camel expires slowly, close up remains on his face, fade to:

    Later in the day, busy market scene;

    Trader 1: Salaam aleykum
    Trader 2: Salamis? I don't like 'um - waddaya got?
    Trader 1: Here are the camels my master promised you. But... one died on the way here.
    Trader 2: I paid yer boss's skinny ass for 5 camels and he sends me four? What's he trying to pull?
    Trader 1: But surely effendi, it's an act of god, you can't blame my master.
    Trader 2: Damn right I'm offended, he's tryn'a stiff me!

    They start shouting and arguing. Camera pulls back to reveal a group of people, neatly dressed and led by a salt-and-pepper haird man with a rigid military bearing, he reaches into his pocket, retrieves a wallet and shows the contents to the two traders:

    Man: Gibbs, NCIS, what's the problem?
    Trader 2: His boss is trying to cheat me, sent only four camels when I paid for five. What's it to do with you?
    Man (Gibbs): Camels are the ships of the desert, that makes it a naval matter. McGee!
    McGee: Boss.
    Gibbs: These guys are talking numbers, geek territory, it's your ground. Find out what the problem is.

    McGee and the traders go into a lengthy technical discussion, involving the words "four" and "five". McGee nods his head and turns to Gibbs:

    McGee: It's like this boss - he sent only four camels when he paid for five.
    Gibbs: Good work work McGee. Think you can do anything here?
    McGee: Well, I could jiggle the framistat, quantumise the wiggly bit then put my left leg in and shake it all about before...
    Gibbs: In English McGee.
    McGee: Sorry boss. This guy could owe this guy one camel.
    Gibbs: Owe?
    McGee: Yeah, He could promise (and cross his heart) that next time he gets a camel it goes straight to this guy.
    DiNozzo and David (together): That's crazy, but it just might work.

    Gibbs explains this to the two traders, with a look of astonishment they agree and shake hands.

    NCIS walk away, another case solved.

    Gibbs: Good work McGee, I think your solution will solve a lot of problems in the future. Any idea what we should call this type of numbering?
    McGee: Negative, boss.
    Gibbs, taking the last sip of his coffee: That's good enough for me, write it up.
    That made my morning
    As is often the case with technical subjects we are presented with an unfortunate choice: an explanation that is accurate but incomprehensible, or comprehensible but wrong.
     

  47. #46  
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    Quote Originally Posted by Duelix View Post

    Now, infinity is believed to be 1/0

    And negative infinity is -1/0
    Excuse me ... .









    Thus, is undetermined because ... .
    Last edited by trfrm; January 22nd, 2013 at 07:40 AM.
    Neverfly likes this.
     

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    There are some interesting formulations of infinite (and infinitesimal) numbers that don't seem to have gotten any coverage on this thread. These are Hyperreal numbers and Surreal numbers.

    Both are extensions of Real Numbers, conceptually, in the way Real Numbers are an extension over rational numbers, or rationals over integers.

    In any case, within the Hyperreals positive and negative infinite numbers do exist and are not equal.

    Quote Originally Posted by Duelix View Post
    If we make this a number line:

    <------------------------->

    then infinity and negative infinity would be at

    negative infinity<-----------------------------> infinity


    Now, infinity is believed to be 1/0

    And negative infinity is -1/0

    *****

    0 is both negative and positive, so both quantities must be the same, right? This means that infinity and negative infinity are the same.

    The simple way of disproving this is to find a function f(x) that approaches some number at infinity, and another number at negative infinity. If any function approaches two different numbers at this point, then my premise would be disproved.

    If negative infinity is equal to infinity, then I assume that the number line would be an infinitely narrow ellipse where infinity and negative infinity are the two endpoints. Would this be a new way of approaching limits?

    I haven't done calculus yet.
     

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    Quote Originally Posted by river_rat View Post
    Quote Originally Posted by Dywyddyr View Post
    The Numbers Game - draft script (partial)

    Scene, early morning, Egypt 40,0000,0000 AC/ DC, sunrise, open desert

    Camera zooms in slowly on a dust trail, which gradually reveals itself to be a string of camels wending their way along a dry track, various riders chat quietly to each other. Suddenly there's a burst of activity and a A-10 Warthog sandworm orbital battlestation disruption happens, one camel falls to the ground with a snap of its leg.

    Close up on the screaming camel: They done got me boss! I'm a gonner! Tell my girl I didn't suffer and make sure my kids go to college.

    The camel expires slowly, close up remains on his face, fade to:

    Later in the day, busy market scene;

    Trader 1: Salaam aleykum
    Trader 2: Salamis? I don't like 'um - waddaya got?
    Trader 1: Here are the camels my master promised you. But... one died on the way here.
    Trader 2: I paid yer boss's skinny ass for 5 camels and he sends me four? What's he trying to pull?
    Trader 1: But surely effendi, it's an act of god, you can't blame my master.
    Trader 2: Damn right I'm offended, he's tryn'a stiff me!

    They start shouting and arguing. Camera pulls back to reveal a group of people, neatly dressed and led by a salt-and-pepper haird man with a rigid military bearing, he reaches into his pocket, retrieves a wallet and shows the contents to the two traders:

    Man: Gibbs, NCIS, what's the problem?
    Trader 2: His boss is trying to cheat me, sent only four camels when I paid for five. What's it to do with you?
    Man (Gibbs): Camels are the ships of the desert, that makes it a naval matter. McGee!
    McGee: Boss.
    Gibbs: These guys are talking numbers, geek territory, it's your ground. Find out what the problem is.

    McGee and the traders go into a lengthy technical discussion, involving the words "four" and "five". McGee nods his head and turns to Gibbs:

    McGee: It's like this boss - he sent only four camels when he paid for five.
    Gibbs: Good work work McGee. Think you can do anything here?
    McGee: Well, I could jiggle the framistat, quantumise the wiggly bit then put my left leg in and shake it all about before...
    Gibbs: In English McGee.
    McGee: Sorry boss. This guy could owe this guy one camel.
    Gibbs: Owe?
    McGee: Yeah, He could promise (and cross his heart) that next time he gets a camel it goes straight to this guy.
    DiNozzo and David (together): That's crazy, but it just might work.

    Gibbs explains this to the two traders, with a look of astonishment they agree and shake hands.

    NCIS walk away, another case solved.

    Gibbs: Good work McGee, I think your solution will solve a lot of problems in the future. Any idea what we should call this type of numbering?
    McGee: Negative, boss.
    Gibbs, taking the last sip of his coffee: That's good enough for me, write it up.
    That made my morning

    Indeed, they would also have to over come the problem of what zero would represent in number form before any mention of +/- numbers came into it for example: The number zero does not have its own Roman numeral, but the word nulla (the Latin word meaning "none") was used by medieval computists in lieu of 0. So the Romans did not have a Roman numeral for zero but they knew it existed.
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  51. #50  
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    Quote Originally Posted by andythomasthekey View Post
    Indeed, they would also have to over come the problem of what zero would represent in number form before any mention of +/- numbers came into it

    Nope.

    So the Romans did not have a Roman numeral for zero but they knew it existed.
    Romans?
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  52. #51  
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    You do know what a Roman is don'y you duck? And why would you say no to them having to work out what zero would represent?
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  53. #52  
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    Quote Originally Posted by andythomasthekey View Post
    You do know what a Roman is don'y you duck? And why would you say no to them having to work out what zero would represent?
    Yeah I think Julius Caesar had a few of those, they make candles I believe.
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    Fair enough, The Roman Empire better?
    Depression is the uncertainty of the unknown, I know one day I'll die so I'm happy.
     

  55. #54  
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    Quote Originally Posted by andythomasthekey View Post
    You do know what a Roman is don'y you duck?
    Yup.
    Mostly dead.

    And why would you say no to them having to work out what zero would represent?
    Let me phrase it this way: WTF do the Romans have to do with it?
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    Well they didn't use zero - why? Not sure myself but they knew it existed, just didn't write about it with a unique numeral.
    Depression is the uncertainty of the unknown, I know one day I'll die so I'm happy.
     

  57. #56  
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    Quote Originally Posted by andythomasthekey View Post
    Well they didn't use zero - why?
    They didn't like it.

    Not sure myself but they knew it existed, just didn't write about it with a unique numeral.
    They didn't use it.
    But they DID use the abacus - which could let them operate with negative numbers.
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    They didn't like zero but they knew they had to believe in zero, which is nothingness, empty space with stuff in it as daft as it sounded to them. There is no Zero on an abacus either as the balls seem to sit between zero another wall far off to the right. This method has no scale but works fine.
    Depression is the uncertainty of the unknown, I know one day I'll die so I'm happy.
     

  59. #58  
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    Quote Originally Posted by andythomasthekey View Post
    There is no Zero on an abacus either
    Don't need one for negative numbers.
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    So they clearly didn't use one, or zero rather? How did they count without zero as in where did they start counting from :/
    Depression is the uncertainty of the unknown, I know one day I'll die so I'm happy.
     

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    Quote Originally Posted by PhDemon View Post
    What makes you think it was the Romans who invented/discovered the number system?
    Your going to have to show me where about I mentioned anything of the sort please?
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    Well that's just it, like the Romans the traders and McGee would of had their own way of dealing with Zero by ignoring it it seems.
    Depression is the uncertainty of the unknown, I know one day I'll die so I'm happy.
     

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    Duelix asked a question and got several perfectly respectable replies. This thread has deteriorated into childishness.

    Thread locked
     

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