Use of the present tense, no reference to the past at all

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!"

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 wai

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.

Note that pressing it turns a+b into (a+b) and not a+b+

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

"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.

It’s so interesting that you couldn’t find anything in the manual saying, “this is a special kind of calculator” says person lying about the screenshot saying you can use chains with 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!

with a proven liar. Nope.

Pathetic, but expected.

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

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.

It’s weird that you’re pretending that you admitted to begin wrong

Lol OK kiddo!