Comment on I dunno
moriquende@lemmy.world 1 day agoYep I have looked at all you’ve posted, I say you’re wrong because what you’ve posted says things that are true, but you’re reading them wrong. For example your last image clearly says a number next to a bracket means the content of the bracket must be multiplied with said number. Nowhere there does anybody speak of distribution taking precedence over other operations. In fact, nowhere in all sources I can find does it say so. Wonder why all screenshots you post use convoluted wording and wonder why you pop up everywhere arguing the same thing and keep getting downvoted? At some point you need to understand that if one old-ass calculator and selective reading of cherry picked passages is all the proof you have, when all modern calculators and algebra solvers go against you, maybe it’s time to reconsider.
Juxtaposition taking precedence over other multiplications I can understand and it’s an arguable point. Distribution being a mandatory step and taking precedence over even exponents is just silly and unfortunately wrong.
Also another thing: you’re a math teacher as you’ve said, and consistently ask if I think “random programmers” know more about algebra than you. What I say to that is I’ve met plenty of teachers who are wrong about things in their own fields, for one. And also, people defining the rules of all those algebra solvers aren’t the programmers, as you’d know if you looked a bit into product development. It’s domain experts, who also define tests and receive feedback on the software’s performance and errors. I’m sure (lol) you’ve sent feedback to them, and they probably looked at it and decided you’re wrong. As well all have.
SmartmanApps@programming.dev 1 day ago
says the person who is actually reading them wrong, who is unable to cite any example of me reading it wrong
the content of the bracket - you just quoted that yourself and still completely missed what that means 😂
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BRACKETS has precedence over everything 😂 So here we have an example of you reading it wrong
And can you find any source which says Multiplication takes precedence over Brackets? No. Another example of you reading it wrong
They don’t use “convoluted wording”! 🤣
“the contents OF THE BRACKETS should be multiplied”
“everything IN THE BRACKET should be multiplied by that number”
Yet another example of you reading it wrong 😂
The only person downvoting me is the person replying, whereas the others are getting downvoted by others as well 🙄
My brand new calculator gives the same answer! 😂 They all do now, except for Texas Instruments - the only one stubbornly still doing it wrongly
Sure, I’m “cherry picking” the sections of textbooks about Distribution. Do you want me to post something random about a different topic? 😂 BTW, noted that you haven’t come up with any textbooks that agree with you
And it is indeed proof.
Agree with me (except for Texas Instruments)
Written by programmers who have forgotten the rules of Maths, and as pointed out by many people in forums.
And yet, here you are not reconsidering 🙄
Because BRACKETS - ab=(axb) BY DEFINITION 😂
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And is also the exact same rule 🙄
There’s a reason it’s called The Distributive Law
BRACKETS taking precedence over Exponents is “silly”?? 🤣🤣🤣
BRACKETS taking precedence over Exponents is “unfortunately wrong”?? 🤣🤣🤣
You think they’re wrong you mean, person who is saying Brackets before Exponents is “wrong” 🤣🤣🤣
Yes they are! That’s why they give wrong answers 😂 I told one he was wrong and he went and fixed it, being the one who had programmed it that way 🙄
I know they are because I have spoken directly to them 😂 Maybe try asking some yourself, before making completely wrong statements
No it isn’t, as proven by personal experience. You know who uses domain experts? calculator manufacturers. 😂 They have considerably more riding on it being right or not.
You know there’s a whole bunch of programmers who don’t bother even defining tests to begin with, right??
Yep!
Except for the ones who did change it. The ones who claimed I was wrong, quoted Google - who have also been told they’re wrong by many people -and not Maths textbooks 🙄
says person who did nothing of the sort, and lied about such things as "all modern calculators " being against me (they aren’t, if you had actually tried some), Exponents having precedence over Brackets, etc.
moriquende@lemmy.world 1 day ago
Here you go: Image
Please post a source that gives a different answer to this expression, I’ll wait.
There’s of course programmers that implement their own projects, but for big monetized products that’s no longer the case. I’m in the software industry myself and have worked extensively in product development.
Sure bro you have multiple downvotes in many posts, I’m sure it’s the person you’re arguing with logging in with multiple accounts lol.
SmartmanApps@programming.dev 1 day ago
Yep, that’s an old Casio model, Mr. “All modern calculators”, proving yet again that you can’t back up your own statements 😂
No need to wait - just scroll back through this thread and look at all the sources I already posted 🙄
You know none of the calculators you’re referring to are commercial right? They’re all free to use, and that tells you how much effort was put into them. The only e-calc I’ve ever seen give a correct answer is MathGPT, which is indeed commercial now (I tried it before it went commercial), so we have a commercial e-calc giving the correct answer, and all the free ones giving the wrong answer 😂
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So am I in case you didn’t notice 😂
I’ve never seen more than 2 on any, Mr. Needs To Exaggerate Because Has No Actual Evidence Of Being Right 😂
moriquende@lemmy.world 1 day ago
You realize a calculator doesn’t need to be a dedicated hardware, right? Windows calculator, MacOS calculator, Android calculator, and all web-based calculators count as well.
You have no clue what you’re talking about. Wolfram Alpha is a commercial product (with a free-tier as is usual nowadays) and uses the same engine as Mathematica, which is used extensively in industry, academic institutions, and government agencies.
None of your sources has exponents in them, and that’s very convenient for your mistake of mixing up juxtaposition and your invented rule.
Btw, ask yourself this as well: why would your invented interpretation of distributive law be necessary at all? It brings no benefit to the table at all. Juxtaposition arguably does, because it allows shorter notation, but your invention doesn’t.
Please find a calculator that gives a result different to 128 for the expression
2(3+5)². You won’t be able to, because it’s the only correct answer. If you don’t post a reproducible example of a solver anywhere coming to a different solution, I’ll consider your argument defeated and ignore further engagement from your part. Have a nice day!