• themeatbridge@lemmy.world
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    17 days ago

    CE is Clear Entry. If you want to hit 2 x 4, but accidentally press 2 x 44, you can press the CE button before pressing = to clear the 44 but not the “2 x” part.

    C will clear all of it so you can start over at the beginning.

    Pressing CE twice may or may not clear entries in reverse order, depending on you calculator model.

      • tpihkal@lemmy.world
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        17 days ago

        Calculators are similar to a Dark Souls game. You always restart from the beginning.

        • teft@lemmy.world
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          17 days ago

          Calculators are similar to a Dark Souls game.

          If that were true then mashing buttons on your calculator would prevent any inputs from being processed for a few seconds.

          Fromsoft believes in punishing button-mashers.

          • stupidcasey@lemmy.world
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            16 days ago

            Oh, yeah I own that calculator. I bought it from amazon, it was an extremely cheap Scientific calculator with a gimmicky writing pad that tricked me into buying it.

          • LeadersAtWork@lemmy.worldB
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            17 days ago

            Unless it’s Dark Souls 2 wherein you mash a couple buttons after being knocked down or rolling and manage to queue up your binoculars perfectly. This, in turn, allows you to get a really splendid look at your enemy’s grimacing face as he shoves a rather vicious and often seriously pointy metal object up your ass. All the while you’re frantically trying to roll away and accidentally toss back a flask. This manages to save you from an untimely demise until you notice that you backed up a little too much and that dude waiting to ambush took one last drag from his cigarette, flicked it away, and proceeded to club your head like he was Babe Ruth after a particularly hearty breakfast.

            Then on the way back to your souls some asshole named “Forsworn” gets in your way. God only knows what his problem is.

    • Moobythegoldensock@lemm.ee
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      17 days ago

      Problem is on some calculators C is clear all and CE is clear entry, on some C is clear entry and AC is clear all, and some have a C/AC or CE/C button where it’s press once to clear entry and press twice to clear all.

      So it’s safest to mash unless you really know your calculator, because the industry can’t get its shit together, and that’s the sole reason it died (I’m assuming.)

      • Rhaedas@fedia.io
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        17 days ago

        Why didn’t they just make one Clear and make another Backspace? The concept of erasing the last character had been in typewriters for a while by then, and this is far more obvious. Maybe erasing a single digit in earlier software/hardware was much harder than just clearing it all?

    • imPastaSyndrome@lemm.ee
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      17 days ago

      I don’t think anyone’s ever been punished for saving twice. Right?

      This is where people give me examples where people have been prove me wrong. Please I want to know the sadness of others sadness give give sadness. Give give now sadness give

      • AmbientChaos@sh.itjust.works
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        17 days ago

        Once I was working on some music and got so excited about how it turned out I hit ctrl S like 5 times, it corrupted the project and I lost it 😭

        • Thassodar@lemm.ee
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          17 days ago

          Similarly I was working on a track and doing something super experimental that I was going to revert and accidentally hit CTRL S instead of CTRL A (automation), saving all the weird shit.

          Luckily I didn’t lose it, but CTRL Z-ing back to what I was doing prior was annoying because I did some things I wanted to keep on other channels

          (╯°□°)╯︵ ┻━┻)

    • Fonzie!@ttrpg.network
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      16 days ago

      On an editor that auto saved and where Ctrl+S doesn’t do anything, yes been there done that.

  • JimVanDeventer@lemmy.world
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    16 days ago

    I am using and loving Solve by Pomegranate Apps. Multiple workspaces and advanced functions available a swipe away. It doesn’t seem to be available anymore, and it looked like the company was hitting hard times when they dumped things like Trump quotes and other shit apps into the store. So, apprehensive to recommend because of weirdness but best calculator ever.

    Edit: down arrows barely meant anything on Reddit and they mean literally nothing here. Fuck you and your annoying orange. Peace out, hugs and kisses.

  • FuglyDuck@lemmy.world
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    15 days ago

    They should have gone with Clear Line instead of Clear Entry, because CE could also be Clear Everything… which is what clear does.

  • merc@sh.itjust.works
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    17 days ago

    Calculators just have a bad user interface in general. It’s pretty amazing that the UI was established in 1970 and was never changed after that.

    • Cethin@lemmy.zip
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      16 days ago

      Well, they’ve sold the same product for about the same price since 1970, so it makes sense. I have no idea how schools can require a specific device from a specific manufacturer. It’s just straight up market control by a public entity.

      • figjam@midwest.social
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        16 days ago

        Its to make sure that they don’t get a billion questions about what button to push next and not being able to complete homework because of button confusion. Does it still need to exist today? Probably no but good luck getting rid of a standard adopted by all manufacturers of textbooks.

        • piccolo@sh.itjust.works
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          16 days ago

          The solution is mandate standards to be adhere too and any contractors must have no patents so any manufacturer can be used.

    • eluvinar@szmer.info
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      16 days ago

      But it has been changed a lot?

      The most basic immediate execution four operation calculator might still look the same, but that’s because it’s a very simple thing and you can’t really get much wrong. For scientific calculators the UI has changed lots. As have the requirements. It used to be a specialist tool used to do thousands of calculations daily. An expensive thing that had to earn its keep. RPN and stuff like that made sense for people who could easily get back weeks of training in just a few years of being slightly more efficient while working. Now we have the natural order delayed execution thing, because the calculators are mostly for students. Who need the UI to be as easy to grasp as possible, because they won’t ever have to do enough calculations to benefit from a faster but harder UI. That doesn’t mean any of those approaches to UI is better or worse. Some things require instructions and making everything idiot-proof shouldn’t ever be the ultimate goal (check out modern computing for why!).

      • Serinus@lemmy.world
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        16 days ago

        (check out modern computing for why!)

        Because when you need to do a process a thousand times, you program it in an actual computer. Then you just have a specific interface for just your process that makes everything simple.

        And the developer really only needs to understand the process for a couple months. Once it’s confirmed working correctly, you’re generally done with that piece of code.

    • red_pigeon@lemm.ee
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      16 days ago

      Curious to know why ? Basic functionality seems very obvious and friendly to me.

      • merc@sh.itjust.works
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        16 days ago

        For one thing, just displaying the latest number isn’t useful if you’re doing anything complicated. For another, many calculations involve using the same number over again multiple times. Some calculators have a memory entry, but many don’t. There’s a “C/CE” but there isn’t a backspace, so if you get one digit wrong, you have to start that entry over (and hope you chose the right option among C/CE/AC/CA/etc. If you accidentally hit the wrong operation key (multiply, divide, plus, minus) AFAIK there’s no way to clear the operation. A lot of common math operations involves parenthesized expressions, but if you’re using a basic calculator you have to instead enter things in an unnatural order. It’s pretty common to end up in a situation where the calculator is displaying B and you want to do A/B but you can only easily do B/A. Fancy calculators have a 1/X button to fix this, but if not you’re out of luck. Same with having B and wanting to do A-B but only being able to do B-A. You can fix that by multiplying by -1, but again, it’s a UI issue that you can’t just say “hold onto that number for a second because I want to enter another number and then use it”.

      • T156@lemmy.world
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        16 days ago

        In defence of QWERTY, it did a decent job for what it was designed for (reducing the risk of mechanical typewriters jamming by not having two hammers next to each other be pressed at the same time), but really oughtn’t have lasted past the point where the risk of jamming was not longer there.

        • sushibowl@feddit.nl
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          16 days ago

          I think people exaggerate how bad QWERTY is. Studies have not consistently found an advantage for one keyboard layout over another, and some studies even show that typists can reach equivalent speeds even with randomised layouts. This suggests that experience and practice with a particular layout is far more important to typing speed than the particular placement of letters. Which is a good argument for keeping qwerty around.

          (reducing the risk of mechanical typewriters jamming by not having two hammers next to each other be pressed at the same time),

          This story is quite common but there is little evidence that it’s actually true. The designer of qwerty actually made a late adjustment to move R next to E (swapping it with period), even though ER is the second most common letter combination in English.

          • KillingTimeItself@lemmy.dbzer0.com
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            15 days ago

            there are two big arguments for a denser layout, notably you move your hands less, which means you can type faster, statistically speaking. It makes it easier. Generally you see typing speed track roughly with this over time.

            And since you move your hands less, it’s ergonomically better for typing, so you get less strain, you have better ergonomics in general, you can type longer, and even faster since there is less strain.

            Different layouts optimize for different things, some optimize for efficient roll combinations, some optimize for switching between hands as optimally as possible. Some don’t really do any of that (qwerty) which also have a significant impact on typing.

          • piccolo@sh.itjust.works
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            16 days ago

            Even the keyboard design itself can effect typing results. Like typing on a really good mechanical keyboard is more comfortable than a shitty chiclet keyboard.

  • whotookkarl@lemmy.world
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    17 days ago

    It’s solar powered so I just wait for night time to clear it then do the next problem in the morning

    • dQw4w9WgXcQ@lemm.ee
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      17 days ago

      I discovered that hitting something like C, CE and 0 simultaneously for some reason worked as an instant power off for my school calculator. Do calculators have such hidden off-buttons? Because I have discovered other calculators with other combinations.

      • petrol_sniff_king@lemmy.blahaj.zone
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        16 days ago

        There’s actually a neat reason for this! The way that simple keys work, like those in a calculator, is by connecting a circuit and letting a small amount of voltage through. This is usually fine because the keypad is broken up into different rollover zones, which is how multi-key input works. But if you find and press keys that are all in the same zone, their voltages add up and can actually overwhelm the little cpu in there. Really old calculators were really easy to break because designers never thought users would need to press keys like division, multiplication, subtract, add, square and square root all at once, which as you can imagine, caused a massive power spike.

        Now, is any of this true? I have no idea dude, you’re calculator was probably fucking haunted or something. I’d have taken that thing to a seance with a ouija board immediately.

        • bstix@feddit.dk
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          16 days ago

          I think this is actually still an issue. On PCs the space bar + up + left arrow keys conflicts on some keyboards. Try it: open Notepad, press two arrow keys and then space. Most of them works but if you hold up and left, it will not make a space.

          This is annoying in racing games, when you want to accelerate, turn left and use the hand brake at the same time.

          • petrol_sniff_king@lemmy.blahaj.zone
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            16 days ago

            I don’t know the specifics, but there is such a thing as keyboard rollover. MOST KEYBOARDS—whoa, sorry. Most keyboards support up to 6 keys at once, but it might be that they’re still divided into sections with lower rollover numbers, such as the arrow keys and space. Some “gaming” keyboards support up to 25 though, so your best bet if this bothers you is just upgrading to a spiffier typer.

    • pretzelz@lemmy.world
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      17 days ago

      Mate, you can just put your finger over the solar panel until it slowly gets strangled