Archived threads in /sci/ - Science & Math - 311. page

>>9056944

It's 9. It can be 1, if you screw up the order of operators. There's an interesting video made by MindYourDecision that explains this in detail.

https://www.youtube.com/watch?v=URcUvFIUIhQ&t

Basically, the answer is 9, based on modern order of operation if you write:

6 ÷ 2(1+2)

https://www.symbolab.com/solver/step-by-step/6%20%5Cdiv%202%5Cleft(1%2B2%5Cright)


The answer is 1 if you write it like this:

6 ÷ (2(1+2)

https://www.symbolab.com/solver/step-by-step/6%20%5Cdiv%20%5Cleft(2%5Cleft(1%2B2%5Cright)%5Cright)

There you go.

>>9056944
Order of operations is something completely arbitrary, so nobody is really wrong, it's just that some people don't understand what the majority of us accept to be the proper order of operations.
PEMDAS is the usual one, but it is redundant, and many people don't remember that the M and D, or the A and S, can be swapped.
It should be PEMA, with the understanding that division is multiplication by reciprocal and subtraction is addition by negation. That would clear things up.

>÷
Into the trash it goes.

No, all organisms have the same potential for high intelligence, regardless of genetic makeup.

>>9056922
Nature/Nurture

IQ is probably 70% genes, 30% conditioning

>>9056928

[CITATION NEEDED]

>muh arbitrary metric is better than your arbitrary metric

Its easier for them since they grew up on it so they can visualize it easier.

I am Canadian and I use liters and cups for cooking and shit but when it comes to height 5"7' is much easier for me to visualize than 170 cm.

>>9056560
Liters and cups are still the imperial system friend. But yes, I live in Canada and this is true, just like how I understand what 150 pounds is, but kilos means nothing to me.

>>9056521
Geometry.
>tfw trying to construct a square with area [math]\pi[/math]

>>9056521
>make up higher order differential equations and solve them when I'm bored.
You can't say that and not at least post some of them

>>9056553
I usually just write them on printer paper, solve them or give up, then throw them away.

>>9056357
Pursue a math PhD?

>>9056357
>wants to get a scientist
>wants to make the big money

choose one...one who really has the thinking of a scientist doesnt give a fuck about payment, as long as he has knowledge, something to eat and a house and bed to sleep

What could you buy, if you know the secrets of life? nothing from value for someone like that tho...

>solve millenium problem
>collect money
>fuck bitches

>>9056253
>expects a proof for a question about semantics

define sentience.

sure can not really well

>>9055956
>What to expect from a PhD?
Hard work
>Also, what salary do you, as a PhD student, get?
Some schools give you a generous stipend. My stipend is 34k a year plus tuition fees. Some schools give you nothing.

>>9055967
>34k a year

Could you illustrate how living is with this amount of money? Do you ever lack something or do you think this is enough to live without worries?

>>9055967
>34k
mine is 22k :(
but very low cost of living, end up with 10k after taxes/housing/bills, not terrible

No such moment because I prefer Copenhagen interpretation, which is most in line with experimentally verified data.

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>>9055856
>he still believes in quantum mysticism aka Copenhagen interpretation

>>9055856
pilot wave theory makes the same predictions

>>9055621
>Can one become good at math if one lacks a natural and intuitive grasp of mathematics?
practice

>>9055629
Is it enough when you start getting into more complex subjects?

No-one has a "natural and intuitive" grasp. You can learn everything people who considered math gods in the classical period knew in less than a year and everything people considered geniuses knew in the neo-classical period in 3 years. The fact Euclid was a fucking genius but you can learn everything he knew quickly shows there's no such thing as people wired for math. We all learn through practice.

>>9053943
How math can show flaws in our common sense is pretty cool

>>9053943
You are a biologist traveling in the rainforest when you are bitten by a venomous snake. Luckily you know that the female of a certain species of frog native to this rainforest secretes the antidote to this venom on its back. You also know that only the males of this species croak. You see one such frog in front of you sitting silently. At the same time, you hear a male croak behind you and turn around to see two frogs of the species. You only have enough time to run to the lone frog you first saw or the pair of frogs behind you and lick their backs before the venom incapacitates you. Which do you run to and why?

>>9053943
what kind of faggot starts an argument about basic math with "well I have a phd and..."

Like, why did these insufferable morons even volunteer the information that they had phds

people like that are why normies don't respect academics

>>9053766
If zero did not exist, how would you have that picture of it for your post.

>>9053766
how many apples are in your hand?

>>9053776
Define appul

>>9052755
got some dope glasses and a nice professional fit

>>9052755
Only physicist to win a Fields medal, typically considered the most prestigious award in mathematics. Perelman better though.

>>9052761
is Witten a greater mathematician thay say Grothendieck?

only goyim attend CC , I see no problem with this

>>9052739
>SHEEIT, WHY WHYTE PEOPLE BE MAKING MATH SO RAYCISS

>>9052741
More people should attend community college but they won't because of the stigma associated with it or because the look at shitty online rankings.

>dy/dx
dy/dx means you are taking the derivative of y with respect to x. it's the same thing as y'.
>d/dx
it just means the same things as dy/dx, except you might be taking the derivative of something else, that's why they only wrote d instead of dy.
>dx
Derivative of something with respect to x
>It seems for various applications of calculus you have this notation in some form or another.
All of these forms are fine, some are used more often then others. It's like multiplication, •,x,*,() having many notations for the same thing.
>newton
He used x˙x˙ for derivative and x⎯⎯⎯x¯ for integral

>>9051967
>x˙x˙
Dot over x
>x⎯⎯⎯x¯
Line over x
Not sure why those came out wrong

>>9051952
>Newton
>Inventing calculus

Top kek

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>having the capability to study petroleum engineering and not doing it
>petroleum
>the substance modern society runs off of
nah anon, become a civil engineer. So little kids can take shits.

>>9051694
>modern society
>modern
But anon, shouldn't you be more worried about what future society is going to run off of?

>>9051696
Until everybody born after the year 1980 dies, it's petroleum. Oil barons will buy out and suppress studies of alternative energy until they can't anymore AKA die of old age.
Why do you think Elon Musk swapped from eletric cars to lets go to Mars? Only one of those things runs on fuel and not electricity.