Comment on A fake Facebook event disguised as a math problem has been one of its top posts for 6 months
SmartmanApps@programming.dev 13 hours agoThat better?
Is it a Maths textbook?
Or you can find one you like all by yourself
I already have dozens of Maths textbooks thanks.
And you can shove the condescension up your ass until you understand the difference between unary and binary operators
It’s not me who doesn’t understand the difference.
you’re proving my point for me.
Still need to work on your comprehension then. I did nothing of the sort.
There is no fundamental law of the universe that says multiplication comes first.
Yes there is. The fact that it’s defined as repeated addition. You don’t do it first, you get wrong answers.
It’s defined by man and agreed to
It’s been defined and man has no choice but to agree with the consequences of the definition, or you get wrong answers.
But they could very well prioritize addition and subtraction over multiplication and division
No they couldn’t. It gives wrong answers.
AbidanYre@lemmy.world 13 hours ago
Actually, it is. With by a PhD and used in a college course. It just happens to be distributed for free because Canada is cool like that.
May want to work on your own reading comprehension.
The facts disagree.
You can keep saying defined all you want, it doesn’t change the underlying issue. 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.
SmartmanApps@programming.dev 12 hours ago
Yeah there’s an issue with them having forgotten the basic rules, since they don’t actually teach them (except in a remedial way). Why do you think I keep trying to bring you back to actual Maths textbooks?
Nope. It’s still not a textbook. Sounds more like a higher education version of Wikipedia.
With you, yes.
The notation is, the rules aren’t.
Says person who doesn’t understand the difference between unary and binary. Apparently EVERYTHING is binary according to you (and your website). 😂
It exists whether we agree with it or not. Don’t obey it, get wrong answers.
AbidanYre@lemmy.world 10 hours ago
It is though. Here’s a link to buy a printed copy: 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.
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.
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.
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.
SmartmanApps@programming.dev 10 hours ago
BWAHAHAHAHAHAHA! They print it out when someone places an order! 😂
No you haven’t. You’ve shown 2 websites, both updated by random people.
I already pointed out to you that they DON’T teach order of operations at University. It’s taught in high school. Dude on page you referred to was teaching Set theory, not order of operations.
Don’t know who you’re referring to. I’m a high school Maths teacher, hence the dozens of textbooks on the topic.
Proves I’m not weird then doesn’t it.
You call what’s in textbooks nonsense? That explains a lot! 😂
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And yet the textbook says nothing of the kind.
No it isn’t 😂
Now you’re getting it. Multiply and divide take 2 inputs, add and subtract take 1.
Actually none of those are operators. The first 2 are grouping symbols (like brackets, exponents, and vinculums), the last is a function (it was right there in the name). The only unary operators are plus and minus.
You very nearly got it that time though! 😂
Again, it’s not me who’s wrong.