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Math is not a democracy
(lemmy.world)
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this post was submitted on 18 Dec 2025
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Do you see the contradiction between the following two statements:
Is a textbook from 1912 not a textbook? Does "never" mean something different where you're from? We're simply dying to know.
Your exact words were "Maths textbooks never use the word".
Do you stand by that statement now?
Do you want to admit it was incorrect?
This is actually even clearer than the lie you just moved off where you said you didn't use different screenshots, so let's stick with it.
You get the same result if you don't press the plus button at that point.
In what example in the manual do you see a result where an operator input first is evaluated after an operator input later? There is no such example. The annotated screenshot you keep posting is an example of left-to-right evaluation. You're just wrongly claiming that pressing the + button for the second time changes the behaviour of the manual.
Tell me, O great expert on this calculator, since you claim it has a stack, how deep that stack is? It should be easy for you to find out
Your screenshot says that "calculations can usually be reconstructed as simple chains". You're using that as evidence that the calculator is not a normal calculator. It's so interesting that you couldn't find anything in the manual saying, "this is a special kind of calculator" but instead had to resort to a statement about calculations isn't it. A mystery.
Buddy, "chain calculators" as you call them are exactly the basic, four-function, stackless, cheapo calculators you can buy for three quid. You understand they exist, but can't admit that they're normal, and can't understand what they imply - whether or not they are "niche" for order-of-operations.
Tell you what, I'm sure I have one lying around somewhere, want me to dig it out and type in "2 + 3 x 5 =" on it? Want to make a bet on what it'll output?
It's weird that your pettiness goes as far as not taking the W when it's handed to you, dude.
Nope!
Use of the present tense, no reference to the past at all
before you or I was even born
Need to work on your comprehension dude if you see a contradiction there
Does anything in what I said refer to textbooks in the past? That would be past tense, "have never used". Need to work on your comprehension dude
Is there no difference between past tense and present tense where you are from?
Yep, exact use of present tense there
Yep
Nope
Not a lie. Nothing I have ever said is a lie
Never said that either liar. Noted lack of screenshots, or have you still not worked out how to do that yet?
No you don't! a+bxc and (a+b)xc aren't the same thing! 🤣🤣🤣
Unlike you I have an actual calculator, no need to look in manuals for how they work. Other dude posted a link where you can buy one for under $10. Go ahead and get one, and let me know what answer it gives you to 2+3x4. I'll wait 🤣🤣🤣
Hence I can confirm it on my own "non-scientific, non-graphing" calculator, unlike you who appears to not even own a calculator at all, and so is grasping at straws with online manuals 🤣🤣🤣
No it isn't! It's an example of evaluating when you press the equals key 🤣🤣🤣 I knew you wouldn't admit to being wrong. 🙄
Says person lying about the += button, which acts as a + button when followed by a number, and as an = button when followed by anything else. Note that pressing it turns a+b into (a+b) and not a+b+ 🙄
says person lying about how a += button works 🙄
Yep, therefore it is a chain calculator, Mr. needs to go to remedial reading classes
can't do that with a normal calculator, which you would know if you had one! 🤣🤣🤣
says person lying about the screenshot saying you can use chains with it 🙄
It's not a mystery why you ignore what's in screenshots - can't admit to being wrong about anything 🙄 Your latest adventure involves pretending that present tense means past tense
says person revealing his lack of knowledge about different types of calculators, and also that he is lacking 3 quid to buy one and try it first hand
says person who doesn't own a normal calculator, can't admit they aren't normal, because can't admit to being wrong about anything 🙄
I'm sure you don't, or you wouldn't be hunting around online manuals desperately looking for something to twist into agreeing with you
with a proven liar. Nope. I'm sure you would go out and buy a chain calculator, then claim it was a "normal" calculator you just had lying around which you magically happened to find
It's weird that you're pretending that you admitted to begin wrong about something when you didn't. Wait a minute, no it isn't. We've already established you're a gaslighter who can't admit to being wrong about anything 🙄
So, "textbooks never use the word juxtaposition" only refers to textbooks that are currently being written? Being printed right this second?
Because every single textbook you've cited, I absolutely guarantee it... was written in the past!
How shall we make sense of this conundrum? Well, it's simple if you speak English: the non-continuous present tense in English is used to express general facts. Thus "I never use drugs" doesn't mean the same as "I am not using drugs at the moment" but implies something about the past.
So yeah, you absolutely said the wrong thing, and your reason for using it is stupid. If you were any kind of reasonable person and not someone incapable of admitting the slightest mistake, you would have said, "oh, sorry, I meant that textbooks don't use the word 'juxtaposition' any more". You wouldn't still be saying, "nope, nothing wrong with what I said even though it was clearly at best misleading!"
Mate, try and keep track. We're talking about a specific calculator and its specific manual. Your calculator is not relevant to that one. You are making claims about the operation of the Sinclair Executive that you can't back up.
Yes, and how much stack space does this calculator have, again? Oh, that's right, you haven't the slightest clue.
It has memory to store exactly three numbers. One operand. One accumulator. And one explicitly manipulated with the memory buttons. Where does it store a and b after you have typed a + b x? Where does it store it?
Now, if you want to talk about your favourite calculator, let's do it. Post a photo or video of you doing exactly this! Tell us the model so I can look up the manual! I won't start telling you things about your calculator that I can't demonstrate, either.
"Says person lying" is your favourite deflection. It's as childish as "NUH-UH!". You need to reply to everything single clause, but have nothing to contribute. Your pathetic inability to come up with anything resembling an argument entertains me though, so keep doing it.
You can use chains with any calculator or without a calculator, pal. "Calculations can usually be reconstructed as simple chains" is just a fact about arithmetic calculations, isn't it. This is even worse than pretending that "never use" means "not using this moment". I bet you accuse people of bad reading comprehension a lot, don't you. The common factor (ZING) is you!
Pathetic, but expected.
The calculator I have found was a freebie handed out at some event. Presumably that wouldn't be a "niche" calculator.
If I google "chain calculator" the results I get are for bicycle chains. If I go on Amazon and search for "chain calculator", I get calculators on keychains. You seem to have made this term up, and I have no idea how, even if I didn't have a calculator lying around, I would go and find this niche product.
But a four-function calculator, or a stackless calculator - these are all terms I understand. And on such calculators - the calculators we all had in primary school, If you press the following sequence of buttons: 2 + 3 x 5 =, the answer it will give is 25.
It's strange, isn't it, how you have to accuse developers and project managers with decades of experience of inexplicably introducing inexcusable bugs into calculator software (even though they can make scientific calculator modes work correctly!), can't bring yourself to admit that such calculators were normal, yet there's such a simple explanation! They're emulating basic four-function calculators that have existed for decades.
Lol OK kiddo!
But being used in schools right now, and you're desperately trying to twist my words around to mean something else because you can't find any textbooks which say juxtaposition, except for one from 1912 🤣🤣🤣
You're the only one who has issues with understanding present and past tense dude, you're the only one trying to use a 1912 textbook in the argument.
Yes it does, because "I never use drugs" isn't the same as "I have never used drugs" 🙄
I absolutely didn't Mr. I can only find it in a 1912 textbook 🤣🤣🤣
says person trying to bring a 1912 textbook into the argument only to avoid admitting having been wrong 🙄
So not like you, which I'm not 😂
It's already there in the use of the present tense
And it specifically says you are wrong 🙄
So when you said all, you didn't really mean all, so an admission that you were wrong about "all". Got it. Thanks for playing. Glad we're done with the "basic" calculator topic then
statement of fact
says person talking about calculators that don't have brackets because he's absolutely proven wrong about The Distributive Law, and is trying to deflect away from admitting being wrong about that 🙄
17
Nope! They don't! With the exception of MathGPT, they all ignore The Distributive Law, you know, the actual original topic 🤣🤣🤣 The Windows calculator in Scientific mode says 8/2(1+3)=16, because, when you type it in, it changes it to 8/2x(1+3). It's hilarious how you just keep making easily proven wrong statements and bring more embarrassment upon yourself, instead of just, you know, checking facts first 🤣🤣🤣
Sharp calculator obeying The Distributive Law
Note that neither MathGPT, nor the Sharp calculator, forcibly add in a multiply sign where it doesn't belong. Welcome to dumb programmer who has forgotten how The Distributive Law works and didn't bother checking in a Maths textbook first.
No they're not! Just like they're also not emulating Scientific calculators that have existed for decades! 🤣🤣🤣