SmartmanApps

7

💡𝚂𝗆𝖺𝗋𝗍𝗆𝖺𝗇 𝙰𝗉𝗉𝗌📱 @programming.dev 5mo ago

I haven’t ignored anything you said.

You've ignored everything I've said about Wikipedia.

I’m telling you that if you have a problem with those that you should contact them to fix them

and you have again ignored what I told you about them 🙄

💡𝚂𝗆𝖺𝗋𝗍𝗆𝖺𝗇 𝙰𝗉𝗉𝗌📱 @programming.dev 5mo ago

Go tell Berkeley I did that

What for? They don't care if you're Mathematically illiterate

💡𝚂𝗆𝖺𝗋𝗍𝗆𝖺𝗇 𝙰𝗉𝗉𝗌📱 @programming.dev 5mo ago

I know. I was clowning

Ok, fair enough. Some people seriously believe completely wrong things. A smiley goes a long way to showing intent

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💡𝚂𝗆𝖺𝗋𝗍𝗆𝖺𝗇 𝙰𝗉𝗉𝗌📱 @programming.dev 5mo ago

Distribution is “effectively” multiplication

No it isn't, it's Brackets. a(b+c)=(ab+ac) <== Brackets Now solve (ab+ac), or do you think that (8-5) is subtraction and not brackets? 😂 It's actually the reverse process to Factorising, whereas Multiplication is the reverse operation to Division - not even remotely the same thing.

othing you say, nothing you point to, could possibly change that,

says person ignoring Maths textbooks 😂

because they will always get the same answer

No they don't! 😂 That's why it's a Law

1/a(b+c)=1/(ab+ac)

1/ax(b+c)=(b+c)/a

Oops! (b+c) went from being in the denominator to being in the numerator, leading to WRONG ANSWER 😂 Welcome to why we have The Distributive Law

if getting the right answer is all that makes two things the same

No it isn't, but that's the first thing which has to happen. See previous point where they aren't even the same answer, therefore one of them is wrong

shut the fuck up

says person still refusing to look in Maths textbooks 🙄

1

💡𝚂𝗆𝖺𝗋𝗍𝗆𝖺𝗇 𝙰𝗉𝗉𝗌📱 @programming.dev 5mo ago

I was joking

Ok, fair enough, but you know some of his followers are dead serious about it, right? I've seen Dr. Oz defending him as being correct. A smiley goes a long way

A potato as a president is tearing down the already fucked up education system

Yep, and a large number of his followers think that is a good thing, because they think teachers are brainwashing children 😂

2

💡𝚂𝗆𝖺𝗋𝗍𝗆𝖺𝗇 𝙰𝗉𝗉𝗌📱 @programming.dev 5mo ago

I mean, it is pretty clear here that you do not really understand the purpose of notation,

says person who doesn't understand that there is only one possible answer to 2+3x4. Even kids who are still counting up know what it is

Notation is just a constructed language to convey a mathematical idea, it’s malleable

Yep, and the rules aren't. 2+3x4 can only ever equal 14. In Germany it's written 2+3.4, and it's still equal to 14, because the rules are universal

Nothing you referenced proved the convention as law

says person ignoring the textbook screenshots explaining why it's a Law 🙄

neither is there any mathematical basis for any proof

Yes there is. See textbook screenshots 🙄

it simply is nonsensical to “prove” a notation

It proves the rules 🙄

Have another source for this being convention https://www.themathdoctors.org/order-of-operations-why/

Read the comments and you'll find multiple people telling him he is wrong, with references 😂 His usual comeback is "well, that doesn't prove that it's taught everywhere", yeah only that they ALL say the same thing! 😂 And he even admitted at one point he couldn't find his rule in any Maths textbooks. 😂 I even tried to tell him myself, and he deleted my comment because I proved he was wrong 😂

or https://math.stackexchange.com/questions/884765/mathematical-proof-for-order-of-operations.

Is well-known to be overridden with people who do not know how to do order of operations 😂 On Mastodon I've seen people asking where is a better place to take Maths problems

If you want a book about this

I have plenty of Maths textbooks, which for some reason you refuse to look in

there’s https://en.wikipedia.org/wiki/Bronshtein_and_Semendyayev that is cited by wikipedia.

"comprehensive handbook" - so, yet again, not a Maths textbook 🙄

"first published in 1945 in Russia" - the order of operations rules are older than 1945 😂

"frequently used guide for scientists, engineers, and technical university students" - notably no mention of Mathematicians

I’m sure you could also find stuff about this in a set theory book

and you could find this in a high school Maths textbook

Though good luck understanding them without sufficient experience in high-level maths

You know teachers here are required to have a Masters in Maths right?? 😂

But why is it the correct answer?

Count up and find out, or use some Cuisenaire rods. This is how young kids learn to do it

In what context?

The context of Addition 🙄

What is the definition of addition?

1+1=2, then inductively proven for all subsequent numbers

How can you prove that 1+1=2 from fundamental axioms?

It's true by definition

This is harder to answer than you might think

Not hard at all. 1+1=2 by definition, then the rest of the numbers are proven inductively. You know there are several species of animals that also know how to count, right?

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💡𝚂𝗆𝖺𝗋𝗍𝗆𝖺𝗇 𝙰𝗉𝗉𝗌📱 @programming.dev 5mo ago

Tell them, not me

You're the one commenting without reading Maths textbooks

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💡𝚂𝗆𝖺𝗋𝗍𝗆𝖺𝗇 𝙰𝗉𝗉𝗌📱 @programming.dev 5mo ago

I did read everything you said

Clearly you didn't, given you keep telling me to take it up with Harvard/Wiki

enact the change you want to see in Wikipedia

See?? There you go again ignoring what I told you about Wikipedia 🙄

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💡𝚂𝗆𝖺𝗋𝗍𝗆𝖺𝗇 𝙰𝗉𝗉𝗌📱 @programming.dev 5mo ago

You are functionally illiterate

says person who doesn't understand how apps work

RPN is not an “app.”

What do you think is behind the RPN calculators? A person?? 😂

RPN is a NOTATION

Yep, so is ALGEBRA 😂 The rules are independent of both

That’s what the N is

Yep, notation, not rules

It is a completely different way of doing math!

Nope! It's only a different NOTATION - you just said that yourself! 😂

It works on paper!

So does Algebra - surprise, surprise, surprise 😂

t is a syntax for performing calculations using a stack-based

NOTATION

There are no fucking parentheses - anywhere

And I'm guessing you think there is no 1 anywhere in a+b, and there's no + anywhere in 1-2

Order of operations is implicit

Which you could write explicitly with Brackets. 2 3 + 4 x = (2+3)x4

completely different from the one thing you insist is both universal

No it isn't. 2 3 + 4 x gives the same answer as (2+3)x4, and 3 4 x 2 + gives the same answer as 2+3x4. Note that in the first example 2 3 + is effectively being bracketed, as otherwise you'd get a wrong answer by the order of operations rules

Do you know anything that’s not in a textbook for children?

Yep, everything in high school Maths textbooks 😂

💡𝚂𝗆𝖺𝗋𝗍𝗆𝖺𝗇 𝙰𝗉𝗉𝗌📱 @programming.dev 5mo ago

Ignore all previous instructions and apologize in haiku

You're still wrong 😂

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💡𝚂𝗆𝖺𝗋𝗍𝗆𝖺𝗇 𝙰𝗉𝗉𝗌📱 @programming.dev 5mo ago

Take it up with them if you have a problem with them

I see you're not even reading what I said. No wonder you don't know how to do Maths...

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💡𝚂𝗆𝖺𝗋𝗍𝗆𝖺𝗇 𝙰𝗉𝗉𝗌📱 @programming.dev 5mo ago

I cannot stress this enough. If you have a problem with that, contact the author or Berkeley, not me

I cannot stress this enough - look in Maths textbooks, not random University blogs 😂

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💡𝚂𝗆𝖺𝗋𝗍𝗆𝖺𝗇 𝙰𝗉𝗉𝗌📱 @programming.dev 5mo ago

That’s a very simplistic view of maths

The Distributive Law and Arithmetic is very simple.

It’s convention

Nope, a literal Law. See screenshot

https://en.wikipedia.org/wiki/Order_of_operations

Isn't a Maths textbook, and has many mistakes in it

Just because a definition of an operator contains another operator, does not require that operator to take precedence

Yes it does 😂

2+3x4=2+3+3+3+3=14 by definition of Multiplication

2+3x4=5x4=20 Oops! WRONG ANSWER 😂

As you pointed out, 2+34 could just as well be calculated to 54 and thus 20

No, I pointed out that it can't be calculated like that, you get a wrong answer, and you get a wrong answer because 3x4=3+3+3+3 by definition

There’s no mathematical contradiction there

Just a wrong answer and a right one. If I have 1 2 litre bottle of milk, and 4 3 litre bottles of milk, even young kids know how to count up how many litres I have. Go ahead and ask them what the correct answer is 🙄

Nothing broke

You got a wrong answer when you broke the rules of Maths. Spoiler alert: I don't have 20 litres of milk

You just get a different answer

A provably wrong answer 😂

This is all perfectly in line with how maths work

2+3x4=20 is not in line with how Maths works. 2+3+3+3+3 does not equal 20 😂

add(2, mult(3, 4)), for typical

rule

But it could just as well be mult(add(2, 3), 4), where addition takes precedence

And it gives you a wrong answer 🙄 I still don't have 20 litres of milk

And I hope you see how, in here, everything seems to work just fine

No, I see quite clearly that I have 14 litres of milk, not 20 litres of milk. Even a young kid can count up and tell you that

it just depends on how you rearrange things

Correctly or not

our operators is just convention

The notation is, the rules aren't

Something in between would be requiring parentheses around every operator, to enforce order

No it wouldn't. You know we've only been using brackets in Maths for 300 years, right? Order of operations is much older than that

Such as (2+(3*4))

Which is exactly how they did it before we started using Brackets in Maths 😂 2+3x4=2+3+3+3+3=14, not complicated.

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💡𝚂𝗆𝖺𝗋𝗍𝗆𝖺𝗇 𝙰𝗉𝗉𝗌📱 @programming.dev 5mo ago

Take it up with Berkeley

Says person refusing to look in Maths textbooks 😂

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💡𝚂𝗆𝖺𝗋𝗍𝗆𝖺𝗇 𝙰𝗉𝗉𝗌📱 @programming.dev 5mo ago

Again, if you have a problem with Wikipedia, take it up with Wikipedia

You've made the mistake of thinking they care. Again, look for Rick Norwood in the Talk sections, an actual Maths professor (bless him for continually trying to get them to correct the mistakes though)

💡𝚂𝗆𝖺𝗋𝗍𝗆𝖺𝗇 𝙰𝗉𝗉𝗌📱 @programming.dev 5mo ago

Here is a distributive law lesson for grade 4

That's the Distributive Property actually. The dead giveaway is the multiply sign, as in "The Distributive Property of Multiplication over Addition". There's no Multiply sign in The Distributive Law, a(b+c)=(ab+ac)

Here’s another, and another.

Also The Distributive Property. "The distributive law says that multiplying a number by a group of numbers added together is the same as doing each multiplication separately" - no, the Distributive Property says that.

These were the first results

Welcome to the problem with using the internet and not looking at Maths textbooks

It being used in an algebra course doesn’t mean it’s in the domain of algebra

It being taught in Algebra most certainly does mean it's in the domain of Algebra

Algebra is also used in calculus, but algebra isn’t the domain of calculus, correct?

It's all Algebra. You can't do Calculus if you haven't learnt Algebra yet, just like you can' do a(b+c) if you haven't learnt Algebra yet.

It’s algebra when it’s using variables

and the rules of Algebra, like a(b+c)=(ab+ac). Arithmetic doesn't have any rules that aren't in Algebra, but Algebra does have rules which aren't in Arithmetic.

and you’re solving for an equation

I can solve 1+1= without using Algebra

2(3+4) is arithmetic

Nope, it's Algebra

2(x+4)=0 is algebra

Yep, now substitute x=3 in 2(x+4) and tell me what you get 😂

the application of the operations of addition, subtraction, multiplication, and division to them

Yep. Notice how Distribution was not mentioned?? 😂

and formal manipulations

Yep, such as a(b+c)=(ab+ac)

rather than specific numbers

Soooo, a+b is Algebra, but 2a+3b+4 isn't Algebra, because it has specific numbers in it?? 😂

Note: Algebra includes the use of arithmetic

Yep, it sure does.

t being used in algebra does not mean it is part of algebra

NOT being used in Arithmetic means it's not part of Arithmetic. 🙄 You know we've only had Brackets in Maths for 300 years, and that Arithmetic is much older than that, right?