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fossilesque@mander.xyzM to Science Memes@mander.xyzEnglish · 22 days ago

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fossilesque@mander.xyzM to Science Memes@mander.xyzEnglish · 22 days ago
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  • bmpvy@piefed.social
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    22 days ago

    Me, having dyscalculia: ok

  • RustyNova@lemmy.world
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    22 days ago

    I get the physics one but not the math one

    • cAUzapNEAGLb@lemmy.world
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      22 days ago

      https://leightonvw.com/2015/02/05/if-you-add-up-all-the-positive-numbers-do-they-sum-to-a-negative-number-yes-they-do/

      • khannie@lemmy.world
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        22 days ago

        Feels like a risky click. I’m not sure my worldview can take any more shattering. It’s already shattered I tell you. SHATTERED.

    • PM_ME_VINTAGE_30S [he/him]@anarchist.nexus
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      22 days ago

      The math one uses the fact that 1 + 2 + 3 + … “=” -1/12, where the equality is in the sense of Ramanujan summation. Classically, the series diverges, so using the equality sign is a bit deceptive. However, in some contexts, it is meaningful to assign a sum to divergent series.

      • Lovable Sidekick@lemmy.world
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        22 days ago

        I believe you, but that made about as much sense to me as when Wesley saves the ship by reversing the polarity of the navigational deflector array.

  • rumba@lemmy.zip
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    22 days ago

    And that -1/12 bs is why I cannot math.

    1+2+3 … tends toward infinity and there’s no amount of playing with numbers will convince me otherwise.

    • bort@sopuli.xyz
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      22 days ago

      And that -1/12 bs is why I cannot math.

      it’s not actually math. It’s people coming up with alternative definitions and then feeling smug when their alternative definitions give weird results.

      • PM_ME_VINTAGE_30S [he/him]@anarchist.nexus
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        22 days ago

        it’s not actually math.

        It literally is math tho

        It’s people coming up with alternative definitions and then feeling smug when their alternative definitions give weird results.

        Yeah because these weird definitions might be useful in some other context.

        • psud@aussie.zone
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          22 days ago

          None of those contexts include ordering a number of beers

    • TwilightKiddy@programming.dev
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      22 days ago

      Hello, I play with numbers:

      1+2+3+...=S
      S-S=1+2+3+4+...
           -1-2-3-...=
      1+1+1+1+...=S-S=0
      

      Moral of the story: ones together are nothing.

      Thank you for your attention.

      • jaybone@lemmy.zip
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        22 days ago

        lol 1-1, 2-2 etc.

        How do you get 1 + 2-1?

        You need to distribute that minus sign to all numbers in the sequence. You can’t leave off the first one.

        • prime_number_314159@lemmy.world
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          22 days ago

          He has a plus one, and a minus one, a plus two, and a minus two, and so on. This is analogous to how conditionally convergent series can be modified to give any finite (or infinite) sum merely by changing the order of the terms.

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