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Funny Pictures. Safe For Work, and Safe For The Kids Too.

Discussion in 'Discussions' started by OmniaNigrum, Aug 30, 2012.

  1. Haldurson

    Haldurson Member

    Umm no it's not impossible. You have a linear equation with one unknown, so no, it isn't impossible.
    9-19 = -10
    2x+x = 3x
    3x=-10
    x=-10/3 = -3 1/3

    oh wait, sorry -- you have 2x *x -- my bad
    2x^2 = -10
    x^2 = -5
    x = +/- (5^.5)i

    There is a solution if you include complex numbers.
     
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  2. OmniaNigrum

    OmniaNigrum Member

    You guys are making my brain hemorrhage...
     
  3. Essence

    Essence Will Mod for Digglebucks

    I already solved the problem. X=X+26. The only number that meets that criterion is infinity. Did you think I was joking?
     
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  4. Alistaire

    Alistaire Member

    Just saying. The joke in that picture was that it's impossible.
     
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  5. LionsDen

    LionsDen Member

    I don't think you can take 2x (+x) and simply make it 3x.

    Let's say for example x=-5, then 2x (+x) becomes 2 x -5 x +5. Which means the answer is -50 to that part. Whereas 3x becomes
    3 x -5 which is -15, they don't match up. This is just an illustration and I picked negative five as x out of my @$$. :)
     
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  6. Haldurson

    Haldurson Member

    Umm, I already admitted that I misread it. The fact that the plus sign is within the parenthesis implies multiplication ie. 2x*(+x) or 2x(x) or 2x^2 (my eyes are bad so I didn't read it right the first time).

    Or are you saying that it wasn't written correctly?

    I do make careless mistakes, particularly I can misread things. But that doesn't mean that I don't understand how algebra works.

    BTW, in the other equation, you can't say that X= infinity. That's not how math works. The best you can say is that the limit as X approaches infinity diverges to infinity at the same rate on both sides of the equation. If one side was squared, and the other was linear, then you could not say that (see l'Hospital's rule). The truth is that no matter how high you go, one side of the equation will always be greater than the other side, so for perpetuity, they will never equal. If your math teacher tought you that then he's wrong. When you start dealing with infinity, you have to use limits, not actual numbers, and then you can apply l'Hospital's rule to determine whether your equation diverges or not. and how relatively fast (if you divide one side by the other and take the derivatve of both numerator and denominator -- if you get 1 then both equations diverge at the same rate.)
     
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  7. Warlock

    Warlock Member

  8. Warlock

    Warlock Member

    [​IMG]
     
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  9. OmniaNigrum

    OmniaNigrum Member

    I am lost at that last one.
     
  10. Kazeto

    Kazeto Member

    Well, the guy heard strange noises, thought it was his sister, asked if it was her, and his mother replied that it was. Then he realised that he lives alone and neither his mother nor his sister were there, and thus stuff got weird.
     
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  11. Essence

    Essence Will Mod for Digglebucks

    So just for fun I gave Wolfram Alpha the equation and hit Go...the answer it returned was "false". :D
     
  12. OmniaNigrum

    OmniaNigrum Member

    I never heard of that engine. I just managed to stump it ten out of ten times. In my never humble opinion, it needs some revisions.

    I tried asking it things such as "What is the inertia of a .223 bullet at one foot from the muzzle?" and then began simplifying over and over until I realized it apparently has zero data on bullets and could not even tell me the weight of the projectile of any caliber I entered.

    I then tried asking it how much energy is required at sea level to arc current one foot. Again it was stumped. (This time I did not specify a unit of measure. I figure it would be easier for it to determine one itself.)

    As a matter of fact, I have been unable to formulate a question it can answer that is not yes or no.

    Nice engine, but it needs far more data and a bit of extra work to do what it is intended to do.

    https://en.wikipedia.org/wiki/Wolfram_Alpha
    https://www.wolframalpha.com/

    *Edit* I thought of one and it delivered. I asked it what the GDP of Earth is. :D
    https://www.wolframalpha.com/input/?i=What+is+the+GDP+of+Earth?
     
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  13. Essence

    Essence Will Mod for Digglebucks

    All I know is that if you allow yourself to treat infinity as a number, infinity plus any number is still infinity. Even infinity plus negative infinity is still infinity. So 26 is certainly covered under that rule. But then, I only got as far as Math Analysis in high school -- anything past that (trig) is Greek to me. :)
     
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  14. OmniaNigrum

    OmniaNigrum Member

    I hate mathematics so much that I refuse to acknowledge most statistics.

    Greek is something I can understand if I bothered. Math is a headache that never ends. And the more people rely upon it the less sense they seem to make to me.
     
  15. mining

    mining Member

    wolframalpha is amazing and it will solve basically any maths/physics problem (that doesn't require more than careful application of known formulae) you want to throw at it.
     
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  16. Haldurson

    Haldurson Member

    You aren't alone -- my mom has had extreme math anxiety. When I was growing up, she studied to become a real estate agent, and had to take some math class (which I helped her with). She actually was able to get through the class, and it did alleviate some of her anxiety. So it isn't hopeless, if you ever feel you want to work on it. It just may not be easy.

    I personally like math but I actually did reach the limits of my own capacity for it at one point. I decided at one point to take an abstract algebra class 'for fun' (ie. it's not really math for engineers). -- group theory, rings, etc. made my head spin in college. I could grasp the basics, but it was just too abstract for me. It's pure math, as opposed to what engineers study, which is applied math.
     
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  17. Haldurson

    Haldurson Member

    BTW, it turned out that she was too ethical to be a real estate agent. She quit in disgust when her 'friend' stole a sale from her.
     
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  18. OmniaNigrum

    OmniaNigrum Member

    Used house salesman = used car salesman. There really is no other way to see it.

    I credit your mother with being bold and righteous enough to deny participation in that. :)
     
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  19. Turbo164

    Turbo164 Member

    My math is infecting the thread. Eeexcellent.

    I mean, um, here have a kitty

    plead insanity kitty.jpg
     
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  20. mining

    mining Member

    I know this feel.
     
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