AbidanYre @ AbidanYre @lemmy.world

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2 yr. ago

Nope. It's still not a textbook. Sounds more like a higher education version of Wikipedia.

It is though. Here's a link to buy a printed copy: https://libretexts.org/bookstore/order?math-7309

You keep mentioning textbooks but haven't actually shown any that support you. I have. I'll trust the PhD teaching a university course on the subject over the nobody on the internet who just keeps saying "trust me bro" and then being condescending while also being embarrassingly wrong.

And because I can't help it, I'll also trust Wolfram over you: Examples of binary operation on A from A×A to A include addition (+), subtraction (-), multiplication (×) and division (÷). Here, you can buy a copy of this too: https://www.amazon.com/exec/obidos/ASIN/1420072218/weisstein-20

Says person who doesn't understand the difference between unary and binary.

Talking about yourself in the third person is weird. Even your nonsense about a silent "+" is really just leaving off the leading 0 in the equation 0+2. Because addition is a binary operator.

Apparently EVERYTHING is binary according to you (and your website). 😂

Only the ones that operate on two inputs. Some examples of unary operators are factorial, absolute value, and trig functions. The laughing face when you make a fool of yourself isn't really as effective as you think it is.

But we're getting off topic again. I can't keep trying to explain the same thing to you, so I would say this has been fun, but it's been more like talking to an unusually obnoxious brick wall. Next time you want to engage with someone try being less of a prick, or at least less wrong. You're not nearly as smart as you seem to think you are.

Actually, it is. Written by a PhD and used in a college course. It just happens to be distributed for free because Canada is cool like that.

The LibreTexts libraries are Powered by NICE CXone Expert and are supported by the Department of Education Open Textbook Pilot Project, the UC Davis Office of the Provost, the UC Davis Library, the California State University Affordable Learning Solutions Program

May want to work on your own reading comprehension.

It's not me who doesn't understand the difference.

The facts disagree.

You can keep saying defined all you want, it doesn't change the underlying issue that it's defined by man. In the absence of all your books (which you clearly don't understand anyway based on our discussion of unary vs binary) order of operations only exists because we all agree to it.

The arithmetic operations, addition + , subtraction − , multiplication × , and division ÷

That better? Or you can find one you like all by yourself: https://duckduckgo.com/?q=binary+operator&ko=-1&ia=web

Yes it does., need to work on your comprehension..

And you can shove the condescension up your ass until you understand the difference between unary and binary operators.

But to original point. I'm not disagreeing with anything and you're proving my point for me. There is no fundamental law of the universe that says multiplication comes first. It's defined by man and agreed to. If we encounter aliens someday, the area of their triangles are still going to be half the width times the height, the ratios of their circles circumference to diameter are still going to be pi, regardless of how they represent those values. But they could very well prioritize addition and subtraction over multiplication and division.

Typical examples of binary operations are the addition ( + {\displaystyle +}) and multiplication ( × {\displaystyle \times }) of numbers and matrices

Very confidently getting basic facts wrong doesn't inspire confidence in the rest of your comments.

Your example still doesn't give a reason why 2 + 3 * 4 is 2 + 3 + 3 + 3 +3 instead of 2 + 3 + 2 + 3 + 2 + 3 + 2 + 3 other than that we all agree to it.

But +, -, *, and / are all binary operators.

As far as I know, the only reason multiplication and division come first is that we've all agreed to it. But it can't be derived in a vacuum as that other dude contends it should be.

Technically possible or not, that seems like a great way to get your account shut down.

These people all need to be hanged once this cancerous administration is removed.

Given what happened with covid, I'm not convinced this administration would stop an attack on a blue city/state.

Was G.O.B. using squirrels in his latest act?

Look at that truck just sitting there NOT having it's tires slashed.

The flip side is that they also lose votes if they don't fight all the bathroom bill type nonsense that republicans keep coming up with.

Unamerican shitheads.

Donald trump's presidential victory is a result of a failure to execute traitors.

Just go around the fucking plant you dumb bastard.

It seems like that's the only way this is going to stop.

I have been assured that Harris would be doing the exact same thing.

Did Pete check his signal logs before complaining about the leak?

You gotta pay the troll toll if you wanna get into that sofa's hole.

No, I think you got it just right.