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Thread: The Maths Thread

  1. #556
    Global Moderator Spark's Avatar
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    OK I've studied a fair bit of abstract algebra and some number theory and this is just ****ing scary. Looks nothing like anything I've ever seen.

    EDIT: Oh OK I've gone a bit further into the paper and it's becoming quite clear why this is like nothing I've ever seen. Bloody general abstract nonsense and it's weird, weird way of thinking.
    Last edited by Spark; 20-09-2012 at 03:36 AM.
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  2. #557
    International Captain ankitj's Avatar
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    Do they have a point at the end?

    Random question: Did prime numbers exist before humans evolved?

  3. #558
    Global Moderator Spark's Avatar
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    By "general abstract nonsense" I mean the hyper-abstract way of thinking which has led to stuff like category theory, which is actually one of the more interesting parts of modern maths (and it is actually called general abstract nonsense) as it makes certain proofs hilariously simple. But it is bizarre and extraordinarily abstract. I don't know whether this proof actually uses category theory in a big way, but it certainly seems to approach it from the same, hyper-abstract viewpoint.
    Last edited by Spark; 20-09-2012 at 07:35 AM.

  4. #559
    The Wheel is Forever silentstriker's Avatar
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    Quote Originally Posted by KungFu_Kallis View Post
    Peter Siddle top scores in both innings....... Matthew Wade gets out twice in one ball
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  5. #560
    The Wheel is Forever silentstriker's Avatar
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    Quote Originally Posted by 8ankitj View Post
    Do they have a point at the end?

    Random question: Did prime numbers exist before humans evolved?
    Yes, because:


  6. #561
    International Captain ankitj's Avatar
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    And before Big Bang?

    What I am trying to say though (it's obvious but still) is how weird it is that laws of mathematics are independent of an observer and couldn't conceivably have been anything but what they are (it is conceivable however that laws of physical were different like the constant G could have had a different value). Yet those laws weren't known to anything till intelligent beings evolved. Who ordained them to exist then and for whom?

    [/Useless little philosophical mussing]

  7. #562
    The Wheel is Forever silentstriker's Avatar
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    Quote Originally Posted by 8ankitj View Post
    And before Big Bang?

    What I am trying to say though (it's obvious but still) is how weird it is that laws of mathematics are independent of an observer and couldn't conceivably have been anything but what they are (it is conceivable however that laws of physical were different like the constant G could have had a different value). Yet those laws weren't known to anything till intelligent beings evolved. Who ordained them to exist then and for whom?

    [/Useless little philosophical mussing]
    A man far wiser than us wrote a classic essay on that:

    The Unreasonable Effectiveness of Mathematics in the Natural Sciences

    It's good reading.
    Last edited by silentstriker; 21-09-2012 at 12:51 PM.

  8. #563
    The Wheel is Forever silentstriker's Avatar
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    So I tried again and I started getting an idea and following it, but then I got lost again. So I not only do I have no time, but too little knowledge and far too few IQ points. I'll leave it to better men than I.

  9. #564
    Global Moderator Spark's Avatar
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    Quote Originally Posted by 8ankitj View Post
    And before Big Bang?

    What I am trying to say though (it's obvious but still) is how weird it is that laws of mathematics are independent of an observer and couldn't conceivably have been anything but what they are (it is conceivable however that laws of physical were different like the constant G could have had a different value). Yet those laws weren't known to anything till intelligent beings evolved. Who ordained them to exist then and for whom?

    [/Useless little philosophical mussing]
    This is basically called the Platonic view and it's very popular nowadays. It's hard not to see why when you see bizarre things like the Dirac equation popping up in places which have nothing to do with physics.

  10. #565
    International Captain ankitj's Avatar
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    Sounds immense, but I didn't understand it.

    The Emerging Revolution in Game Theory - Technology Review

  11. #566
    International Vice-Captain Days of Grace's Avatar
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    Apologies if this if I have asked this before, but...

    How do I get microsoft excel to give a higher value to a bowling average of 20 than a bowling average of 30?

    I want a linear progression, so a bowling average of 40 is worth 80 points, an average of 20 is worth 160 points, and an average of 10 would be worth 320 points, and so on.

    Cheers.
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  12. #567
    Global Moderator Spark's Avatar
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    that looks more exponential than linear to me.

    try: x = average/10

    weightedaverage = 10[2^(6-x)]

  13. #568
    International Vice-Captain Days of Grace's Avatar
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    How do I enter that into the formula input?

  14. #569
    International Debutant shankar's Avatar
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    Isn't it just a simple 3200/x?

  15. #570
    Global Moderator Spark's Avatar
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    Quote Originally Posted by shankar View Post
    Isn't it just a simple 3200/x?
    or that lol

    depends what kind of fit he wants, i guess

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