• justme@lemmy.dbzer0.com
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    2 months ago

    The second is not really scaled, and the second and forth have translation. Usually that wouldn’t be a problem for demonstrative proposed, if translation wouldn’t be shown explicitly. Can be fixed by introducing a canvas of the before/after picture

    • jol@discuss.tchncs.de
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      2 months ago

      The second is scaled in one axis, and had translation otherwise it would be hard to understand. And the rotation can be achieved by moving the origin of rotation.

    • enkers@sh.itjust.works
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      2 months ago

      It took me up until reading your comment to get this one. “Is it that the scaling transformation only scaled the y-axis?? Oh…”

      • radicalautonomy@lemmy.world
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        2 months ago

        I teach these basic transformations as part of my middle school math classes, and I was completely loss as to why they didn’t include a reflection, but then I realized a reflection wouldn’t be that interesting because it could be indistinguishable from a translation.

        • untorquer@lemmy.world
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          2 months ago

          I was at a loss too as to where they source the “most common” when skewing is also extremely common

          • radicalautonomy@lemmy.world
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            2 months ago

            Scaling, in general, is the least common middle school transformation covered by state curriculum as far as depth of knowledge is concerned, at least where I’ve taught. Students just aren’t ready at that age to calculate something as sophisticated as the scale factor contributing to an object’s loss of size.

            • untorquer@lemmy.world
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              2 months ago

              I think the students are ready and quite capable of such sophistication. They’re just too distracted with sharing memes.

              • radicalautonomy@lemmy.world
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                2 months ago

                I think the students are ready and quite capable of such sophistication. They’re just too distracted with sharing memes.

                (Oh, I know, my middle schoolers do alright as long as our figures are two-dimensional, and my high school geometry students do very well; I just wanted to say the magic, fun, wink wink word again. 🙂)

  • maegul (he/they)@lemmy.ml
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    2 months ago

    Ok … I didn’t know this meme (too old and/or out of the loop I suppose) … so out of annoyance I looked it up …

    … and yea … as far as trolling is concerned gotta pay the game here … not sure it was worth 15 mins of my life but … kudos I guess

        • flyingchaucer@lemmy.sdf.org
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          2 months ago

          Know Your Meme’s page on Loss.

          Basically, a 2000s webcomic about gamer culture devoted a comic (titled Loss) to the writer’s partner who had a miscarriage. It’s four wordless panels, and the characters in each panel take up roughly the positions of the rectangles in the OP.

          Tonally, it was the complete opposite of what the webcomic normally covered, and it really shocked its readers who, being an internet community, responded with irony and parody, and now there are a ton of Loss references out there.

    • Hjalmar@feddit.nu
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      2 months ago

      Only the transformations one is correct. All the other ones seemingly also preform a translation, and even if they might be correct if you take the orgin to be slightly outside of the shape but that’s bad for educational purposes. Also this one makes the translation transformation look like the identity transformation.

      This last one might just be me, but shouldn’t shearing be included here?

  • apocalypticat@lemmy.world
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    2 months ago

    Scaling looks like scaling+translation? And rotation looks like either rotation+translation, or scaling+translation?