memes

This magazine is from a federated server and may be incomplete. Browse more on the original instance.

Th4tGuyII, (edited ) in 6÷2(1+2)
@Th4tGuyII@kbin.social avatar

The answer realistically is determined by where you place implicit multiplication (or "multiplication by juxtaposition") in the order of operations.

Some place it above explicit multiplication and division, meaning it gets done before the division giving you an answer of 1

But if you place it as equal to it's explicit counterparts, then you'd sweep left to right giving you an answer of 9

Since those are both valid interpretations of the order of operations dependent on what field you're in, you're always going to end up with disagreements on questions like these...

But in reality nobody would write an equation like this, and even if they did, there would usually be some kind of context (I.e. units) to guide you as to what the answer should be.

Edit: Just skimmed that article, and it looks like I did remember the last explanation I heard about these correctly. Yay me!

wischi,

Exactly. With the blog post I try to reach people who already heared that some people say it’s ambiguous but either down understand how, or don’t believe it. I’m not sure if that will work out because people who “already know the only correct answer” probably won’t read a 30min blog post.

Th4tGuyII,
@Th4tGuyII@kbin.social avatar

Unfortunately these types of viral problems are designed the attract people who think they "know it all", so convincing them that their chosen answer isn't as right as they think it is will always be an uphill challenge

BCsven,

yeah, our math profs taught if the 2( is to be separated from that bracket for the implied multiplication then you do that math first, because the 2(1+2) is the same as (1+2)+(1+2) and not related to the first 6.

Th4tGuyII, (edited )
@Th4tGuyII@kbin.social avatar

So you were taught strong juxtaposition then, where the implicit multiplication takes priority?

BCsven,

if it was 6÷2x(2+1) they suggested do division and mult from left to right, but 6÷2(2+1) implied a relationship between the number outside the parenthesis and inside them, and as soon as you broke those () you had to do the multiplication immediately that is connected to them. Like some models of calculatora do. wasn’t till a few yeara ago that I heard people were doing it differently.

sverit,

Yeah, that’s why fractions are good thing.

agni, in 6÷2(1+2)

.

wischi,

?

Iapar,

!

Peter_Arbeitslos,
@Peter_Arbeitslos@feddit.de avatar

,

Opitech,

Crack0n7uesday, in Wrong explanations only

This is how we mine for the spice.

Xavienth, in Cringe

Such an inefficient use of space. We should make parking garages for them! /j

Spaceinv8er, (edited ) in Which pill do you choose?

6 years old all the way. Ok yeah sure, investments, Bitcoin, be rich. However, I’d love to relive parts of my past that I would want repaired that money couldn’t exactly fix.

I’d be a better older brother to my younger brother. Hang out with him, take him to his football games, take him to movies, play video games with him. Instead of being the douchebag party guy that ignored him. We have a good relationship now, but I wish I could’ve given him better memories when he was a kid of his older brother and guided him more/better.

I’d help my Mom with her addiction that took ahold of her because she couldn’t cope with what happened in her childhood. Maybe she’d still be around today, instead of me being so self absorbed in my own stupid shit.

Avoid the bad relationships I was in, and have the knowledge to recognize when a relationship will go badly. Including the parts of myself that help make the relationship bad.

Maybe the money would help with some of these things, but I really think my attention and presence would be more impactful.

Kichae, (edited ) in 6÷2(1+2)

Ackshually, the answer is 4

6÷2*(1+2)

6÷(1+2)*2

6÷(3)*2

2*2

4

You’re welcome

Littleborat,

If there are rules about which dot comes first then you are not allowed to do this.

ryathal,

You aren’t allowed to do this because division isn’t transitive.

atomicorange,

c/TheyDidAMath

CowsLookLikeMaps,

psychopath

deadbeef79000, (edited )

Psychomath

StephniBefni, in No one can stop me

But why would you want to.

FatTony, in "Crony Capitalism" is Libertarian cope

Capitalism! How fun!!

Angry_Maple, in Wrong explanations only
@Angry_Maple@sh.itjust.works avatar

Figure 8(a):

The worms are summoned to protect their creator from being exorcised. In this depiction, you can see the exorcism waves being emitted from the cross.

kogasa, (edited ) in 6÷2(1+2)
@kogasa@programming.dev avatar

It’s not ambiguous, it’s just that correctly parsing the expression requires more precise application of the order of operations than is typical. It’s unclear, sure. Implicit multiplication having higher precedence is intuitive, sure, but not part of the standard as-written order of operations.

wischi,

I’d really like to know if and how your view on that matter would change once you read the full post. I know it’s very long and a lot of people won’t read it because they “already know” the answer but I’m pretty sure it would shift your perception at least a bit if you find the time to read it.

kogasa,
@kogasa@programming.dev avatar

My opinion hasn’t changed. The standard order of operations is as well defined as a notational convention can be. It’s not necessarily followed strictly in practice, but it’s easier to view such examples as normal deviation from the rules instead of an implicit disagreement about the rules themselves. For example, I know how to “properly” capitalize my sentences too, and I intentionally do it “wrong” all the time. To an outsider claiming my capitalization is incorrect, I don’t say “I am using a different standard,” I just say “Yes, I know, I don’t care.” This is simpler because it accepts the common knowledge of the “normal” rules and communicates a specific intent to deviate. The alternative is to try to invent a new set of ad hoc rules that justify my side, and explain why these rules are equally valid to the ones we both know and understand.

wischi,

What is the correct answer according to the convention you follow?

kogasa,
@kogasa@programming.dev avatar

I have a masters in math, please do not condescend. I’m fully aware of both interpretations and your overall point and I’ve explained my response.

wischi,

I still don’t see a number ;-) but you can take a look at the meme to see other people with math degrees shouting at each other.

kogasa,
@kogasa@programming.dev avatar

Sorry your article wasn’t as interesting as you hoped.

onion,

The difference is that there are two sets of rules already in use by large groups of people, so which do you consider correct?

kogasa,
@kogasa@programming.dev avatar

There aren’t.

Th4tGuyII,
@Th4tGuyII@kbin.social avatar

They weren't asking you if there are two sets of rules, we're in a thread that's basically all qbout the Weak vs. Strong juxtaposition debate, they asked you which you consider correct.

Giving the answer to a question they didn't ask to avoid the one they did is immature.

kogasa, (edited )
@kogasa@programming.dev avatar

Ah yes, simply “answer the question with an incorrect premise instead of refuting the premise.” When did you stop beating your wife?

That’s not what they asked me. I have no problem answering questions that are asked in good faith.

Th4tGuyII, (edited )
@Th4tGuyII@kbin.social avatar

I can't have stopped because I never started, because I'm not even married... See, even I can answer your bad faith question better than you answered the one @onion asked you.

But I will give it to you that my comment should've stipulated avoiding reasonable questions.

The difference is that there are two sets of rules already in use by large groups of people, so which do you consider correct?

However I still think you need your eyes checked, as the end of this comment by @onion is very clearly a question asking you WHICH ruleset you consider correct.

Unless you're refusing the notion of multiplication by juxtaposition entirely, then you must be on one side of this or the other.

kogasa,
@kogasa@programming.dev avatar

“Which ruleset do you consider correct” presupposes, as the comment said, that there are 2 rulesets. There aren’t. There’s the standard, well known, and simplified model which is taught to kids, and there’s the real world, where adults communicate by using context and shared understanding. Picking a side here makes no sense.

Th4tGuyII,
@Th4tGuyII@kbin.social avatar

When the @onion said there were two different sets of rules, you know as well as I do that they meant strong vs. weak juxtaposition.

You're right that in reality nobody would write an equation like this, and if they did they would usually provide context to help resolve it without resorting to having to guess...

But the point of this post is exactly to point out this hole that exists in the standard order of operations, the drama that has resulted from it, and to shine some light on it.

Picking a side makes no sense only if you have the context to otherwise resolve it... If you were told to solve this equation, and given no other context to do so, you would either have to pick a side or resolve it both ways and give both answers. In that scenario, crossing your arms and refusing to because "it doesn't make sense" would get you nowhere.

In all honesty, I think you're acting like the people who say things like "I've never used algebra, so it was worthless teaching me it as a kid" as though there aren't people who would learn something out of this.

kogasa,
@kogasa@programming.dev avatar

You are literally so far removed from this conversation I don’t know what to do with you. Good luck.

Th4tGuyII,
@Th4tGuyII@kbin.social avatar

That's rich considering what sparked this conversation was you refusing to answer a simple question.

Good luck to you too - with reading comprehension like your's, you might just need it.

kogasa,
@kogasa@programming.dev avatar

with reading comprehension like your’s

Man.

Th4tGuyII,
@Th4tGuyII@kbin.social avatar

I'll just say it again, you're the one saying this problem is completely unambiguous, with your only explanation as to why being that real people communicate as though that solves every edge case imaginable.

I'm just saying, if you really believe that to be the case, Good luck.

gnate, in Wrong explanations only

Summon worms for your Tom Waits cover song by playing the Earth like a bass.

can, in I love piped bot

Oh boy, can’t wait to see what someone commented on my post

doctorn,
@doctorn@r.nf avatar

Oh boy, can’t wait to see if the commenter upvoted my reply for the effort.

IkarusHagen2, in I can use the time to make memes
@IkarusHagen2@feddit.de avatar

K

Zink,
@Zink@pawb.social avatar

K

ultra,

K

Zink,
@Zink@pawb.social avatar

What have you done

SuiXi3D,
@SuiXi3D@kbin.social avatar

K

ultra,

Yay, that reddish*t trend of downvoting the fourth comment in a chain is gone!

PoolloverNathan,

K

Meowoem, in Which pill do you choose?

Six year old, easy choice - do something mildly special for a kid that age and get on TV then when they ask you a question the answer is ‘well it was a dream i had, there was a pale horse riding towards us snd the horses name was Tod, it was going to run over everyone but an angel told me to call out to the faithful and save them…’

Kid can’t even read and from an atheist family then starts quoting bible and making up complex visions and messages no child could ever create - plus very clear predictions that come perfectly true, knowledge of science before it’s discovered… Admit it, you’d get sucked into my cult.

Could have a huge portion of the world believing, teach them the need for luxury gay space communism then when we’re all living in utopia be like ‘oh btw it was just a time travel prank lol’

RadicalCandour, in Obedience of cats

Meowlicious compliance

  • All
  • Subscribed
  • Moderated
  • Favorites
  • memes@lemmy.ml
  • localhost
  • All magazines
  • Loading…
    Loading the web debug toolbar…
    Attempt #