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Cake day: October 1st, 2023

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  • bus_factor@lemmy.worldtoScience Memes@mander.xyzVirgin Physicists
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    5 days ago

    There’s less and less reason to do it (and it’s never 5). On systems without floating point you might want to round it a bit, but only if the specific thing you’re doing allows it, and even then you’re more likely to do a fixed-point approach by using e.g. 314 and dividing by 100 later, or adjusting that value a bit so you can divide by 128 via bitshift if you’re on a chip where division is expensive. However, in 2025 you almost certainly should have picked a chip with an FPU if you’re doing trigonometry.

    And while rounding pi to 3 or 4 is certainly just a meme, there are other approximations which are used, like small-angle approximations, where things like sin(x) can be simplified to just x for a sufficiently small x.


  • Which country is this? I think both American and European (or at least Norwegian) washers use standard plugs (although American dryers do not), so I’m just curious which areas use something custom for that.

    A regular plug should be able to supply a washer with power, but dryers are a different story in countries using 110V power.



  • bus_factor@lemmy.worldtoMicroblog Memes@lemmy.worldBuilt to last
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    6 days ago
    • It can tell you it’s done, so you notice the notification after a couple hours instead of finding musky clothes a day or two later
    • It can tell you it’s time to do the self-cleaning cycle
    • If you’re doing something unusual, like washing reusable diapers which need extra rinse cycles, you can upload a custom program for that to the washer
    • Even more unusual, someone had stacked units and was too short to reach the buttons on the washer, so they liked to start it via the app instead of getting a stool

    Most of this can be achieved in other ways (like a smart plug measuring the current draw and a simple monthly reminder), but non-techies want turnkey solutions.

    I can’t see any reason to have WiFi on your dryer, though.