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Vagabond

@ Vagabond @kbin.social

Posts
1
Comments
17
Joined
3 yr. ago

  • rule

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  • It really bugs me that someone highlighted and circled this as if they found this ironic error when it was written as a joke headline in the first place and it went clear over their head. The equivalent of red circles and arrows on thumbnails

  • Whats your such opinion

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  • I see what you're getting at but the issue isn't really the assumed multiplication symbol and it's priority. It's the fact that when there is implicit multiplication present in an algebraic expression, and really best practice for any math above algebra, you should never use the '÷' symbol. You need to represent the division as a numerator and denominator which gets rid of any ambiguity since the problem will explicitly show whether (2+2) is modifying the numerator or denominator. Honestly after 7th grade I can't say I ever saw a '÷' being used and I guess this is why.

    That said, I'll die on a hill that this is 16.

  • Whats your such opinion

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  • Ah sorry just realized what you were saying. I've never been taught that. Maybe it's just a difference in teaching styles, but it shouldn't be since it can actually change the outcome. The way I was always taught was if you see a number butted up against an expression in parentheses you assume there is a multiplication symbol there.

    So you were taught that 2(2+2) == (2(2+2))I was taught 2(2+2)==2*(2+2)

    Interesting difference though because again, assuming invisible parentheses can really change up how a problem is done.

    Edit: looks like theshatterstone54's comment assumed a multiplication symbol as well.

  • Whats your such opinion

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  • Not quite. It's true you resolve what's inside the parentheses first, giving you. 8÷2(4) or 8÷2x4.Now this is what gets most people. Even though Multiplication technically comes before Division the Acronym PEMDAS, that's really just to make it sound correct phonetically. Really they have equal priority in the order of operations and the appropriate way to resolve the problem is to work from left to right solving each multiplication or division sign as you encounter them. Giving you 16. Same for addition and subtraction.

    So basically the true order of operations is:

    1. Work left to right solving anything inside parentheses
    2. Work left to right solving any exponentials
    3. Work left to right solving any multiplication or division
    4. Work left to right solving any addition or subtraction

    Source: Mechanical Engineering degree so an unfortunate amount of my life spent in math and physics classes.

  • Whats your such opinion

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  • 8÷2(2+2) comes out to 16, not 1.

    Saw it posted on Instagram or Facebook or somewhere and all of the top comments were saying 1. Any comment saying 16 had tons of comments ironically telling that person to go back to first grade and calling them stupid.

  • Leftover Humble Bundle Keys giveaway

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  • This is so cool of you. If it's not already claimed could I put my grubby mitts on middle earth?

  • Mitch McConnell appears to freeze again while talking to reporters in Kentucky

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  • For some reason the way she said "Please speak up" as if it's that reporters fault really got to me. Fuck off, that volume was perfectly fine. How about get a senator that can hear sounds below 100dB? How about get a senator whose mind isn't withering away to dust? How about he literally has to forfeit his position due to being too senile to adequately perform in the interest of American citizens?

  • [Question] What are your computers named?

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  • Albatross and Nautilus. Not really sure why, just like the sound of the words and the nautical theme. I still have 2 or 3 laying around unnamed because I haven't thought of any good words that fit the theme

  • News; City mayor demands Trump settle 2018 bill of $35k ahead of rally

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  • I live in Erie. Please don't pay, just stay the fuck out. I was finally starting to see a decrease in Trump paraphernalia littering the rural parts of the county.

  • Now that you've all tried it ... ChatGPT web traffic falls 10%

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  • I'm finding the opposite actually. Tried it months ago for basic python scripts and it was garbage. Recently started a project where I needed some c++ scripts to flash into an avr microcontroller and it's been killing it. To be fair I did a decent amount of code myself and also knew exactly what I wanted the program to do. But it has been really good about cleaning up my code, keeping the code consistent through multiple iterations, and understanding my explanations. It teaches me new functions that I didn't know existed which make the code better and faster. Also, when I was designing the circuit, I could describe what I needed a component to do and it would give me whole lists of, for example, possible types of 5volt voltage regulators and the differences between them.

    I equate it to having a coworker rather than an employee. I can't really just tell it to do stuff and it'll spit out a perfect script. I need to work with it to make sure it understands my requirements and realizes it's errors. The biggest advantage is this coworker has encyclopedic knowledge of electrical components and c++.

  • I can't post hardly anything on Reddit anyway

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  • Definitely. I posted on r/DIY with a picture of a ceiling I was patching in my house. My house is old and I wasn't familiar with the construction style of my ceiling. I was already well into the job: light fixture removed, ceiling joists exposed, new sheetrock going up. But I wanted to know what the old construction material was and if it was known for being hazardous. So I posted a picture of a chunk from the ceiling with my clearly-already-very-much-started project in the back. Within 15 minutes a mod removed it because "no asking the community how to get started with a project." I try and fight it but they weren't having it.

    Over the next week I watched so many posts get very popular on the sub with just a picture of a floor, or wall, or bathroom with a title like "thinking of adding outlets to this wall but don't know how to start. Help."

  • cats @lemmy.world
    Vagabond @kbin.social

    Everyone meet Beast. He was the most majestic gentleman and lived til 19 years old. Yesterday would've been his 20th birthday but we had to put him down this time last year.

  • Greece boat disaster: Survivors blame Greek coastguard for tragedy

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  • Here's something you need to consider though. We need a well trained Navy and Coast Guard. It's kind of a necessity that those guys know how to perform water rescues and can perform them well. And it's for that reason that they actually use events like this for training when they can. Obviously this is extraordinarily rare, so typically they stage trainings for deep water recoveries instead. This is more useful, more real training than the latter option. Likely no one is going to need to pay for the recovery because it's built into the Navy and Coast Guards budgets set aside for training that would have otherwise paid for a staged recovery. Only this time, they were able to use an actual disaster as a training opportunity. They likely knew, or we're at least confident that the sub imploded on that Sunday but still spent 4 days on the recovery effort partly to train and partly to get additional evidence to confirm their suspicions.

  • How to google for content from Fediverse?

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  • Thank god you asked this. It's been like pulling teeth trying to get google to show anything on any fediverse instance

  • ELI5: If you're a Christian, why do you have to be good if Jesus will forgive you no matter what?

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  • He sure did! And yeah, that's pretty much how I felt about his beliefs. If everything is decided already, then there's no point in having any motivation to do anything because it won't matter. Your destination is decided no matter what, so just do whatever you want regardless of if it's morally just or not.

  • ELI5: If you're a Christian, why do you have to be good if Jesus will forgive you no matter what?

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  • It sounds like you know more than this about me so correct me if I'm wrong but my understanding is there's a difference between just plain omniscience (which sounds like what you're describing in your comment, and is pretty widely accepted among Christian denominations) and actual predestination (which to my understanding is almost exclusively a Calvinist belief).

  • ELI5: If you're a Christian, why do you have to be good if Jesus will forgive you no matter what?

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  • I had a teacher in school who believed in predestination. Basically, whether you go to heaven or hell is pre-ordained before your even born and there's nothing you can do to change it. I told him that sounded to me like I should be a Satanist because if I'm predestined for heaven I've worshipped Satan all my life for nothing and I get to chill in heaven. If I'm predestined to go to hell I've spent so much time worshipping Satan it probably won't be too bad. I'm personally not really religious myself but I really was dumbfounded at the whole predestination thing.