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danluu's profile
Dan Luu
Dan Luu
Dan Luu
@danluu

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Dan Luu

@danluu

https://patreon.com/danluu 

danluu.com
Joined December 2008

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    Dan Luu‏ @danluu Jul 7
    • Report Tweet

    Really nice answer to the question "in layman's terms, what exactly does it mean to be transcendental? How would a transcendental number be different from an ordinary number, say 5": https://math.stackexchange.com/a/1686299/18947 pic.twitter.com/IbOdO1Yklj

    2:38 PM - 7 Jul 2019
    • 420 Retweets
    • 1,255 Likes
    • Futurologia GAURAV 🐍 Thomas Rival Jesse Zhao Cy Husain 🌹 Vikram Bath1 Brian Vaughan, CFA Tim Haight Daℕiel Penaℤℤi
    15 replies 420 retweets 1,255 likes
      1. Dan Luu‏ @danluu Jul 7
        • Report Tweet

        A 2nd order interesting thing is that the comments & other answers illustrate what a hard time people have coming up with explanations in layman's terms even when explicitly asked to come up with an explanation in layman's terms.pic.twitter.com/sViwL1eZph

        7 replies 15 retweets 133 likes
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      2. Parti du tirage au hasard.‏ @ObnoxiousJul Jul 7
        • Report Tweet
        Replying to @danluu

        oh, that is why exp^(i*pi) is so special ? 2 transcendental numbers that becomes algebraic thanks to a simple algebraic operation with an algebraic number ?

        2 replies 0 retweets 11 likes
      3. Martin Nyx Brain‏ @ciphernyx Jul 7
        • Report Tweet
        Replying to @ObnoxiousJul @danluu

        That's part of it. e^{I*pi} + 1 = 0 contains one addition, one multiplication and one exponential. It uses the unit of addition, the unit of multiplication, pi the fundamental unit of geometry, e the "unit" of differentiation and i for the fundamental theorem of arithmetic.

        2 replies 1 retweet 13 likes
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      2. Jesús Javier Chi Domínguez‏ @Jebus_dguez Jul 8
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        Replying to @danluu

        The 2nd & 3rd examples are not correct under the definition of the game: "...you can add, substract, multiply, or divide by any integer, except zero..." The word integer is not satisfied when you multiply by x and x is not an integer.

        1 reply 0 retweets 1 like
      3. nejhans‏ @nejhans Jul 8
        • Report Tweet
        Replying to @Jebus_dguez @danluu

        “You can also multiply by x“

        1 reply 0 retweets 6 likes
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      2. Steve Hurcombe‏ @stevehurcombe Jul 8
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        Replying to @danluu @k8em0

        So it's a value that can't be perfectly represented in the decimal system?

        3 replies 0 retweets 0 likes
      3. Ufuk Kayserilioglu‏ @paracycle Jul 8
        • Report Tweet
        Replying to @stevehurcombe @danluu @k8em0

        Not at all. The argument quoted has no dependence on the number system you use. Integers are integers in any number system, 0 is always 0 and x is always x. So, the argument applies in any number base.

        0 replies 0 retweets 2 likes
      4. End of conversation
      1. Decodex01‏ @argenbit Jul 9
        • Report Tweet
        Replying to @danluu

        I've also seen game semantics be used as a tool to explain (ε, δ)-definitions as a sort of game you play against a Limit Demon. https://math.mit.edu/~apm/ch03.pdf 

        0 replies 0 retweets 1 like
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      1. Shiban Lal Pandita‏ @lal_shiban Jul 8
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        Replying to @danluu @nattyover

        If you don't know root 2 is the side (length) of a square whose field value is 2 you don't know difference between arithmetic & geometry. @skdh @IndianInterest

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      1. Henry‏ @MIT1991_2 Jul 8
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        Replying to @danluu

        i think there are little more than dozen popular transcendental numbers, eg, e, ln(2), hilberth, eulers g, etc

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