How good is /r9k/ at math?
Answer is 7
What does the little hat symbol mean? ^??
21 but I'm probably wrong like in every one of these fucking things
>>25902921
to the power
>>25902890
13
Message message
The answer is 13.
13
OC as fuck
The answer is 67.
>>25902926
>21
I mean 13. Why am I so retarded.
It's 67 and if you think otherwise you didn't graduate fucking high school.
you see, the schools fool us into thinking that is math. what it is is a bunch of symbols and if you don't know what they mean and how they operate then you have no fucking clue how to solve that 'problem'. what we need is a common core. this why we need a common core.
>>25902890
13 for pemdas
>>25902890
This isn't a math question, it's an order of operations question. Ambiguity in order of operations goes away if you use reverse polish notation, infix operators are for plebs who want to be confused all the time.
>>25902921
To the Power of. So in this case it is 2 to the power of 2.
13
muted fhshfkiekeke
>>25902996
hi, Comrade Bernie! how was the vacation in the soviet union?
>>25902973
Dude, on step 3 you put addition before multiplication, making it 19 instead of the answer, 13.
>>25902890
pemdas
2+2x2^2+3
2+2x4+3
2+8+3
13
>>25902994
are you fucking retarded?
OC OC
>>25903023
I was pointing to this:




V
>>25902973
2+2*2^2+(2+1)
2+2*2^2+3
2+2*4+3
2+8+3
13
http://www.wolframalpha.com/input/?i=2%2B2*2%5E2%2B%282%2B1%29
>>25903017
https://www.maa.org/external_archive/devlin/LockhartsLament.pdf
>>25903023
I realized after I posted that's why I deleted
>In [1]: 2+2*2**2+(1+2)
>Out[1]: 13
The answer is 13.
>>25903003
Screw off. RPN is fine for computers, but humans can't parse it. Better to just be clear with order of ops and parens.
I always feel bad for the polish guy though. No one could pronounce his name, so they just called it "polish" notation.
>>25902955
>>25902953
I'm with these guys, but then again I'm borderline retarded
PEDMAS
2+2*2^2+(3) P
2+2*4+(3) E
2+8+3 DM
13 AS
2^2=4
2*4=8
2+8=10. (2+1)=3
10+3=13
You're not dumb for not getting this answer your math teachers just failed at teaching this properly and if you've past elementary school then you almost never use it again.
2+2x2^2+(2+1)
2+2x4+(3)
(time to distribute)
2+2x(12)
2+(24)
26
>>25903075
>humans can't parse it
What? I use it all the time at work, it's really not any more difficult, it's just that most people are raised to think in terms of infix.
>>25902890
2+2^(2+2+1)=2+2^(5)=2+32=34
Anyone else who says otherwise is a moron.
>>25903144
Are you fucking autistic, that's not even close to a distributive equation
Maybe if you worked your way down to 10 then 10(2+3) could be a thing but even that's retarded.
No teacher of math would even attempt that shit.
>>25902890
either 66 or 13 depending on if the (2+1) is part of the power
>>25903219
I meant 10(2+1)
Fuck me
>>25903181
Humans prefer information with high locality. (R)PN removes much of the locality for very complex equations. Matching up sequences without delimiters is really hard. Maybe other people don't agree with me, w/e
I barely passed Algebra 2 in high school. That was 5 years ago. If I want to become an amateur mathematician, what is the first step I should take?
>>25902997
>pemdas
Everytime I see this I want to buy a plane ticket to the US just to shoot up a random high school
This confuses half of your country's population into thinking that multiplication comes before division and adding comes before substracting while they're actually equal in this regard.
By the way, 13 is still correct
>>25903254
this>>25903124
Anon explained it well though did the brackets last for some reason
2+2*2^2+(2+1)
2+2*2^2+3
2+4^2+3
2+16+3
21
Easy as fuck.
>>25902890
13 when you follow the standard order of operations
13 you imbeciles
>>25903531
exponents come before multiplication
Bunny. My answer is bunny.
2+2*2^2+(2+1)
2+2*2^2+3
2+2(4)+3
2+8+3
13
PEMDAS. This is literally fucking fourth grade math you lousy low life retarded ass degenerate fucks.
>>25902890
wtf does ^ mean
13, you fucks.
PEMDAS and lefttoright.
>>25903283
It's PEMDAS because PEDMSA sounds 3x as retarded. I remember all my teachers making it a point to say "Multiplication or division, do whatever comes first same with addition or subtration."
pemdas
2+2*2^2+(2+1) first, Parentheses
2+2*2^2+3 then, Exponents
2+2*4+3 then Multiplication/Division in order
2+8+3 then, Addition/Subtraction in order
10+3
13
>>25902890
> how good is /r9k/ at arithmetic?
2+8+3=13
>>25902890
Too easy.
2+2*2^2+(2+1) =
2+2^3+(3) =
2+8+3 =
13
>people don't know that it's 13
Is this Facebook? Am I reading Facebook comments?
>>25903253
I don't agree. That isn't something that can be proved because it's nearly impossible to test without bias. It's one of those stupid projects you do as a soc/psych major to get a degree.
>>25903283
Anyone that actually thinks it's like that is retarded. I graduated from an American high school and I learned pemdas and every one of my teachers said that when it comes to multiplication/division or addition/subtraction, you do it left to right.
2+2*2^2+(2+1) = 21
ur all fuckin dumb
13
>all this PEMDAS stuff
What is this
In hong kong, we just use distributive rules and algebra axioms
>>25902890
2+8+3 = 13
You're all retarded
>>25905688
Parenthesis, exponents, multiplication, division, addition, subtraction
>people in this thread actually doing arithmetic
>not just plugging it into matlab
>>25902890
Poorly written.
>tfw surrounded by dirty american pedmas filt
>tfw superior canadian bedmas citizen
>tfw canada is now a jome of a country and nothing matter because justin trudeau is a muslim loving cuck and our dollar is pathetic
>does it ever end
>>25906509
Canadians have always been a joke. Have you seen south park?I still hope to move there someday
>>25902890
Is this in mathematical notation or in programming code? If programming which one? Because ^ could mean exponent or it could mean something else.