…I mean, yeah? If the number is 50 or 10 that works out great. But let’s try that with 7% of 13. Now it’s 13% of 7. Just like you said, “much easier to calculate.”
Okay, choosing prime numbers was intentionally mean on my part. But 3% of 9 becomes 9% of 3. 4% of 2 becomes 2% of 4. Can anyone honestly look me in the eye and tell me that this tip has helped them out in any meaningful way?
9% of 3 is easier to estimate because you know it’s “almost 10% of 3”. Or, since 10-1==9, you could think of it as (10% of 3)-(1% of 3) and get the right answer using some other shortcuts. Humans being generally pretty good at base10, this is easy to figure out in your head as (0.3 - 0.03) and get 0.27.
Or, you could do what another commenter suggested and “3% of 9” can broken down as (3/100)•(9/1), becomes, (3•9) / (100•1), becomes 27/100, becomes 0.27. And that can be simplified as xy/100.
Different tools for different jobs. Base10 tricks are good for stuff like figuring out, say, a 15% or 20% tip, because you can easily figure out a 10% tip just by moving the decimal one space to the left, and add half of that (for 15) or double it (for 20). Or half and half again for (almost) 18%. xy/100 is a good trick for figuring out small percentages like sales tax (unless you’re in a place like Mass where it’s 6.25 and you gotta change it now to 625y/10000. At that point I’d just estimate at 6 in my head, or if I had to solve it mentally do (6y100) + ((1y100)/4).
Well, single digit percentages are easy. If it helps, move your decimal to the right so 9% becomes 90%. You can probably calculate 90% of 3 because you can do 10% and subtract it and get 2.7. Now move your decimal back to the left and you get 9% of 3 which is 0.27. You can do the same with higher percentages once you learn to break them in to 10% pieces.
This is a coherent method and makes a lot of sense.
Mental gymnastics is when someone has to lie to themselves to make a point that isn’t correct. Like when people argue that trump was a good president because they can list several good things he did.
Or when people claim something is mental gymnastics when it’s actually called maths.
You’re really asking whether commutativity of multiplication has ever helped anyone? Because that’s what this is.
And yes it has helped me eg. estimate things or whatever along the years – but of course it’s not going to be some sort of magical mathematics trick where just by reversing the numbers it’ll always make things easier to calculate in your head
No, I think we all learned that multiplication is commutative in late elementary school, and obviously that’s an important thing to know.
But I think the original post tried to make it out to be some magical mathematical trick, and I really don’t understand that. Maybe I misunderstood the post.
Edit: wow, “commutative” is a really hard word to spell.
Yeah I think this is more about how you interpreted it, because it doesn’t look like others took it as being an absolute magic trick rule and neither did I.
The Panzer of the Lake didn’t use the word “commutativity” (fuck that really is hard to spell), but it gave out some wisdom that applied that rule by saying that “percentages are reversible”: if the reverse of a percentage would be easier to calculate, you can use it and get the same answer. If it’s not easier, well, then you’re screwed 😁 Oooooor depending on the situation you can use the a × b% = a × b / 100 commutativity trick:
You’re welcome! Glad I could give you an a-ha moment.
Having an intuitive feel for tricks like using the definition of operators or symbols to make your life (well, calculations at least) easier usually means that you either have to just be “naturally” talented at math which is really rare, or you’ve just had to grind grind grind math at eg. university, work or whatever. So unless someone was taught that above trick and they actually remember it from school, they might never come to think that “hmm % just means / 100 so that can make this easier to figure out in my head”.
I thought it was less about racial stereotypes, and more about this big recent push across multiple fields to not have people’s names attached to things. Right now (or recently) it’s about oviducts v Fallopian tubes or the bulbourethral gland v Cowperis gland in biology, which I’m familiar with. I think there was a post and comment thread about birds specifically in the last few days on Lemmy; same thing with people’s names being removed.
From what I’ve seen, a lot of the motivation to not have peoples’ names attached to things is because people have things attached to them (such as racism). Not saying that’s every case, but I’m sure that’s a significant factor behind the general push.
Um. The names aren’t being replaced with other personal names, and even if they were, it’s certainly not with the names of the people doing the replacement.
I think the point was they aren’t necessarily trying to replace names with their own, but they get the privilege to name it whatever they like and the name will be used until the next big wave of renaming things comes along.
It’s really dependent on the attitude of the renamers. Maybe they are honored for the privilege and take it seriously, others might think it’s their god given right to name things and fuck the old names. That last one may be a bit extreme, and without actually knowing these people, the best option is to just not give a fuck and move on with life.
“Libertarian” always seems like a misnomer. Libertarians only want people like themselves to experience liberty. They aim to do nothing to address inequities like social and systemic discrimination against LGBT+ people, BIPOC, women, and others. They aim to do nothing to address poverty. It’s social darwinism at its ugliest. This is why they are practically indistinguishable from conservatives here in the US – the way they arrive may look different, but the outcomes are the same. At best, they are wearing blinders. At worst, they actively support the power structures and systems that result in things like poverty and abuse.
People who legitimately do seek liberty should instead be looking to things like anarchism, which is interested in addressing the root causes of all of these problems, such as hierarchies and the state.
There is equality and there is equity. Libertarians are for equality even if it creates non-equity.
Let me give an abstract example so that it is not politically charged. Suppose that there are green-skinned people in our society that for some historical reason value writing poetry above all else. And they are trying to earn their living by writing poetry and sometimes having second part time usually low paid job to support themselves.
Libertarian would say that these green people has absolute right to do so, and face consequences of their choice. This is liberty.
People who advocate equality would say - no, there is systemic green-ism that leads to green people being consistently underpaid, having less percent of them in high level jobs like CEO, and so on. They then propose all sorts of laws that will treat green people differently so that the average salary, average number of CEOs per 100,000 population and other similar metrics associated with “success” are the same for green people. This kind of differential treatment of green people is absolutely against to liberty minded people, that includes libertarians, that think that the laws should be the same to all people, regardless of their skin color, genetics and so on.
Lady with social anxiety here to confirm. Flirting is useless. Every time I’ve just given up and asked the dude to date after being extremely forward for a while and they’re always shocked 🤷🏼♀️ Once we get past that, it’s great.
You missed their flirting because a good portion of your highschool class discovered that the absolute funniest gag in the world is to “flirt” with you.
I once had a user whose PC would freeze every time they tried to see their desktop. Like, you minimise something full screen and the PC would freeze for a few minutes and crawl while the desktop was in view.
Turns out they had more than 4,000 items on their desktop.
That day I learned where Windows puts icons that don’t fit on the desktop (it stacks them all on the first icon’s place, lol). And this wasn’t even the problem they called about! They were just grumpily blaming Microsoft and working around it for years.
I guess my point is computer illiterate/belligerent people will find a way around the problems they cause and just blame something/someone else.
The flavor of coleslaw varies as much as any other dish.
Fresh veggies and a tasty dressing? Awesome.
Shelf stable, premixed, and squeezed out of a bag at a fast food chain? Complete garbage.
I’ve bought it myself and I personally don’t care about the optimizations + developers warned about it a few times. Still a lot of people get mad and I’m not sure why.
If you were looking into playing I would recommend watching “City Planner Plays”. He has a couple videos up about CS2 performance and options as well as a “quick start” cough 1 hour long cough video for the main changes you’d want to know in CS2.
This is exactly how I feel. I’m enjoying it more now after I Learned to Stop Worrying and Love the Service Charge lol
I did get literally 5 fps in the main menu when I first started, that had me worried. I set it to medium settings and then back to high and for some reason that fixed it.
Performance issues aren’t my concern, as from what I’ve seen it’s just a couple options causing the problems.
But anytime I’ve seen this meme being used. I always get the impression the game isn’t fun, because why would you think people are out to ruin your fun unless you’re not actually having fun.
The mailbag showdown episode of zero punctuation talks about this better than what I could.
Yeah, I usually see it being used when a game lands in the “bad press” category.
Personally, ive felt slightly frustrated at the dogpilling because it’s the type of game where I want to go look at the community response, see some of what other people are building, and get ideas for things to try to add to mine. Right now it’s hard to do that because looking for hospital placement tips just gets an air horn blast about how it’s unplayable because search engines suck sometimes.
And sometimes you just see the same posts over and over, and it just doesn’t match with what you’re actually doing and seeing and you want to laugh at people complaining about 30fps and no motion blur being unplayable in a city building game.
Seems it. I remember a while back someone started dumping memes on here dunking on something, seems they had a vendetta about some change (someone with a better memory might be able fill in the blanks!). I wonder if it’s a similar thing.
memes
Top
This magazine is from a federated server and may be incomplete. Browse more on the original instance.