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Transcript

An informational diagram showing different (bad) ways to cut a circular pizza.

  1. A grid cut, labelled “Tic-Tac-Toe”
  2. a regular 8-way cut, but the middle is very off center, labelled “Off-Center Inequality.”
  3. A six-slice cut where each cut is a sinusoidal curve, labelled “Apple Beachball”
  4. A spiral that goes all the way to the middle, labelled “Spiral Cut”
  5. Looks normal, but is labelled “Just draw the lines on with a sharpie”
  6. Regular shaped slices cut out of the middle of the pizza in random positions, labelled “Why”
  7. A side view, showing two long horizontal cuts through the entire disc, labelled “Layer Cake”
  8. Mostly diagonal lines splitting the pizza into shapes, labelled “Tangram”
  9. Two identical pizzas, labelled “Banach-Tarski”
    • TheFogan@programming.devEnglish
      23·
      1 day ago

      You must be looking for the article how to cut a pizza into multiple slices. This article was called 9 ways to cut a pizza.

      Obviously a more USEFUL article would be 9 ways to cut a pizza into equal slices.

    • brsrklf@jlai.lu
      6·
      1 day ago

      I definitely saw a comic strip about this exact thing being the right way to cut a pizza for one.

      Followed by a demonstration of someone eating the whole thing in one long continuous grind without their hands.

  • FluorideMind@lemmy.world
    14·
    24 hours ago

    Ok hear me out. Off center inequality is the best choice. It gives the most options for portion size, like maybe I don’t want 2 slices. Maybe I only want 1.4 slices. With all others, that isn’t possible.

    • palordrolap@fedia.io
      10·
      1 day ago

      It’s pretty simple, really. There’s a mathematical way of creating a complete cover of all points within a sphere in a finite number of subsets in such a way that those finite subsets can be rearranged into two complete spheres of the same size.

      It’s kind of like how there are exactly as many points between 0 and 1 on a number line as there are between 0 and 2, so if you take a 0 to 1 segment, and then multiply all distances by 2, you can cut it into two pieces with exactly as many points as the original 0 to 1.

      This is the sort of thing that only works with mathematical abstractions, which is why it’s paradoxical. You sure as heck can’t do this with a pizza, even if it’s technically isomorphic to a sphere.

        • palordrolap@fedia.io
          1·
          21 hours ago

          Imagine a stretchy piece of elastic that doesn’t change cross-section when pulled and doesn’t snap back. (This is mathemagic elastic. A regular rubber band gets thinner and narrower in cross-section when pulled. Also they tend to snap back.)

          Stretch it to twice its length and then cut it at the halfway point. You now have two stretchy pieces of elastic just like the first one.

          If this bothers you that something is apparently being created from nothing, that’s why Banach-Tarski is called a paradox.

  • spicy pancake@lemmy.zipEnglish
    9·
    1 day ago

    spiral cut and then lower it over a 3D printed spiral cone thing on top of a lazy susan. now everyone gets to cut a curved pizza ribbon from the bottom

    the guests love it and post it all over their socials. the catering staff has a blast making fun of it (and posting it all over their socials)

  • Davel23@fedia.io
    4·
    1 day ago

    I recall reading somewhere that if you cut the pizza using the “off-center inequality” method, then have four people each take a piece plus the one directly across from it they will all end up with an equal amount of pizza.

    • Raja@lemmy.world
      2·
      2 hours ago

      That doesn’t seem right. If you imagine moving the “off-centre” point towards the edge, then two of the slices will cover most of the pizza, so the remaining slices can’t add up to enough.

      It would make a fun geogebra animation.