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themaninblack@lemmy.world to memes@lemmy.world · 2 years ago

Math(s)

lemmy.world

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Math(s)

lemmy.world

themaninblack@lemmy.world to memes@lemmy.world · 2 years ago
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  • Tagger@lemmy.world
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    2 years ago

    51 has to be the non-prime number that feels the most prime

  • southsamurai (he/him/pronoun agnostic)@sh.itjust.works
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    2 years ago

    Everything is divisible by 17

    Only issue is what the result is ;)

    • FooBarrington@lemmy.world
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      2 years ago

      Oh yeah? Then what’s 34 divided by 17, smart guy?

      • southsamurai (he/him/pronoun agnostic)@sh.itjust.works
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        2 years ago

        Jesus 42

        • FooBarrington@lemmy.world
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          2 years ago

  • ArbitraryValue@sh.itjust.works
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    2 years ago

    What blew my mind is this. What is the sum of the infinite series

    1, -1, 1, -1, ...

    One answer is to look at it like this:

    (1 - 1) + (1 - 1) + ... = 0

    Another answer is to look at it like this:

    1 + (-1 + 1) + (-1 + 1) + ... = 1

    But then it gets weirder. What if you add two of the series together like so:

    1 + -1 + 1 + -1 + ...

    ____ 1 + -1 + 1 + ...

    (Please ignore the underscores. They’re just there because otherwise Lemmy messes up the whitespace.)

    All the terms cancel out except that first 1 again. But this time it’s the sum of two of these series, which means that the sum of one series is 0.5 and somehow not an integer.

    The correct answer is that you’re not allowed to add up infinite series like this so that’s why you get contradictory results if you try.

  • RCTreeFiddy@lemmy.world
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    2 years ago

    Someone’s never played darts, I see.

    • Godnroc@lemmy.world
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      2 years ago

      Or at least not well.

  • C126@sh.itjust.works
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    2 years ago

    Wait until they find out 68 is also divisible by 17.

  • Zugyuk@lemmy.world
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    2 years ago

    That’s why you always go for multiples of 6 plus or minus 1 that are not multiples of 5 or 11.

  • Valmond@lemmy.world
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    2 years ago

    57 / 19 …

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